>•.*./; - •.. *•/ . •*•,

ENTOMOLOGICAL NEWS

VOLUME LVIII, 1947

3/

PHILIP P. CAI.VERT, EDITOR EMERITUS R. G. SCHMIEDER, EDITOR

EDITORIAL STAFF

E. T. CRESSON, JR. E. F. J. MARX

J. A. G. REHN A. G. RICHARDS, JR.

E. T. MOUL

PUBLISHED BY

THE AMERICAN ENTOMOLOGICAL SOCIETY

THE ACADEMY OF NATURAL SCIENCES

PHILADELPHIA, PENNSYLVANIA, U. S. A.

1947

The numbers of ENTOMOLOGICAL NEWS for 1947 were mailed at the Post Office at Lancaster, Pa., as follows :

No. 1— January April 17, 1947

No. 2— February May 8, 1947

No. 3— March June 13, 1947

No. 4— April July 30, 1947

No. 5— May August 19, 1947

No. 6— June September 30, 1947

No. 7— July October 27, 1947

No. 8— October November 17, 1947

No. 9— November January 5, 1948

The date of mailing the December, 1947, number will be announced on the last page of the issue for January, 1948.

ENTOMOLOGICAL NEWS

JANUARY 1947

Vol. LVIII

No. 1

CONTENTS

~

Rau Life history notes on the wood-roach ............................. 1

Moul— Pink katydid at Woods Hole ......................... '. .......... 4

Brown Two neglected species of Formica .............................. 6

Evans Two new spider wasps ......................................... 10

Pate Identity of Entomobora Gistel ................................... 16

Shappirio Notes on wasps ............................................ 18

Notes and News in Entomology

News from Italy .................................................. 19

Field Releases of Microplectron .................................... 19

Production of Macrocentrus in N. J ................................. 19

Summa Brasiliensis ...... ........................................ 20

Pacific Science ................................................... 20

Entomological Literature .............................................. 21

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ENTOMOLOGICAL NEWS

VOL. LVIII JANUARY, 1947 Xo. 1

Life History Notes on the Wood-Roach, Ischnop- tera deropeltiformis Brunner

By PHIL RAU, Kirkwood, Missouri

Previous to these observations in 1945, I had occasionally taken adults under bark in dead logs in St. Louis County as late as June 7, and on one occasion in my search for sleeping insects I saw one on top of a weed at 4 A.M. on June 26 (Trans. Acad. Sci. St. Louis 24: 57, 1922).

With only this meager acquaintance with this insect, I was amazed to discover a large number of them at rest on the wild oats heads in a rural school-yard, on the evening of June 19, 1945.* Even though the twilight was rapidly fading, their dull- black bodies were easily discernible among the airy tops of the green grasses. There was no tendency toward gregariousness ; each roach was independently perched high up on its stalk, and some distance from others of its kind. Each assumed a statue- like position, with head up, and remained thus during the entire evening. In spite of this "frozen" attitude, they were entirely alert ; when approached within a foot or two, they tumbled, quick as a flash, into the tangled grass below.

There were 25 adults, scattered over this area of perhaps an acre. Although I watched them carefully until darkness fell, and later with a flash-light, I could detect no alteration in their attitude or behavior.

* Specimens kindly identified by Mr. J. A. G. Rehn.

(1)

ENTOMOLOGICAL NEWS [Jail., '47

The following evening I visited them again, and on several other evenings, until their disappareance on July 5, but never witnessed the courtship or mating behavior that I had expected. However, the following items of behavior were noted :

1. There were from 20 to 30 on exhibition each night, until the numbers dwindled during the last days of June, and they disap- peared on July 5.

2. During that time, thorough searches netted only one female ; all of the others were males, easily discernible by being winged.

3. The males readily escaped from the net when caught. They could sustain themselves in flight for 40 or 50 feet, and on rare occasions a resting male would voluntarily fly to another oat head.

4. They \vere much more agile on their feet than on the wTing, running with great rapidity on a smooth surface, but when they fell into the tangled grass their movements were awkward, and they could readily be picked up with the fingers.

5. They maintained this frozen attitude even in a drizzling rain.

6. On my first visit, I came upon them in deep twilight, when all of the roaches \vere quiet in their places. On subsequent visits, I arrived at the school-yard while it was still daylight, and had the pleasure of seeing the roaches come up out of the tangled grass and climb slowly to the tops of the oats heads. At 6:15, there was not a roach to be seen, but as twilight deepened they crept out slowly and stealthily, one here and one there, un- til within a half-hour all 20 or 30 were in their places. One ex- ceptional case was an ambitious creature which appeared on June 24, a half-hour before any of the others. At what hour they went back into hiding, I did not discover, but when I left, usu- aly at 9 :30 P.M., all were still quiet in their respective places.

7. A year later, I often visited the school-yard, earlier in the season, to discover the date of their first appearance. The first ones wTere seen on May 25, almost a month earlier than my ob- servations the previous year. Obviously, I had come upon them in 1945 at a date when their mating was already over, and the females (all but one) were elsewhere, probably ovipositing.

Iviii, '47| ENTOMOLOGICAL NEWS

But in 1946, many trips and many hours of search led only to disappointment, for during the entire season only two or three males were seen at any one time on the high grasses, and their behavior differed in no way from that of the year before.

I still suspect that this well-defined habit of the males of com- ing out at twilight is some undiscovered part of the vital business of mating. If this is so, then their method of approach differs from that of their near kin, ' Parcoblatta pennsylvanica,* who flies swiftly in the air and seeks, with display of emotion, the wingless females hidden in the logs. The males of /. deropclti- fonnis likewise come out at dusk, but merely sit in their frozen attitude. If they are awaiting the coming of the females, it must be a slow' process, for the latter are wingless. The one female taken had been fertilized, for she oviposited soon after and the eggs were fertile. The place and behavior of mating are still to be discovered.

The one female already mentioned and 14 males were placed in a cage in the laboratory, and the following data gathered.

They fed on sliced apple, bread, cake, etc., and on several oc- casions they devoured a less vigorous one of their companions.

The female deposited three egg-cases before her accidental death. She was taken on June 19, and four days later a fine brown egg-case was protruding from her body. The second one appeared six days after the first, and again after an interval of seven days a third one appeared. This last one was distorted in shape, and nothing came from it. She did not carry the pro- truding egg-cases for days, as some roaches do, but dropped them from her body in less than twenty-four hours. One egg-capsule hatched after 38 days, the other after 37 ; and one produced 40 young, while the other gave 38.

The color of the egg-capsule is a shiny dark brown, almost black, slightly crescentic in form, and is a typically shaped cock- roach case. The young mature simultaneously, and all leave the case within a period of a half-hour. The newly-hatched roaches are white, but gradually darken, and after about six hours are

* The Life-History of the Wood-Roach, Parcoblntta pennsylvanica. Entom. News 51 : 5-6, 1940.

4 ENTOMOLOGICAL NEWS [Jan., '47

brown with two black spots on tbe last segment. The long, dark antennae are white for the distal fourth of their length.

The newly hatched nymphs are gregarious, living close to- gether under a piece of bark in an insect cage. The gregarious- ness continues evidently through all of the immature stages, for at this writing (Nov. 1, 1946) these three-fourths grown nymphs continue the habit. The young, as well as the adults, are swift runners. They remain in hiding throughout the day, and feed at night, but when a light is switched on, they swiftly run for cover.

I had supposed that the length of life from hatching to ma- turity would be about a year, but in the laboratory those which hatched in July and August, 1945, are only about three-fourths grown after fifteen months. They prefer the moist parts of the floor of the cage, always under a piece of bark.

The adults are evidently long-lived, for the 14 which were al- ready adult and of unknown age when captured lived from 21 to 48 days in confinement.

Pink Katydid (Amblycorypha oblongifolia DeG.) at Woods Hole, Massachusetts

By EDWIN T. MOUL, University of Pennsylvania, Philadelphia, Pa.

During late July, 1946, at Woods Hole, Massachusetts, a nymph of the katydid species Aiublycoryplia oblongifolia DeG. was brought into the class room by a student. Instead of the usual green color associated with katydids, this nymph was a deep pink. The specimen was given grass and leaves to feed upon and was kept in a make-shift cage. It appeared rather sluggish but ate some of the food material supplied. Examina- tion of the cage on the sixth morning revealed an adult katydid. The nymph had moulted during the night, apparently eating its cast skin, as this could not be found. The color of the adult was less intense than that of the nymph, the ventral surface of the abdomen fading to almost white. It is evident that the col-

Iviii, '47] ENTOMOLOGICAL NEWS 5

oration of this mutant carries over from nymph to adult. The pinned specimen has faded considerably and appears light brown with only a slight suffusion of pink here and there on the upper surface of the body.

Upon questioning the student, it was learned that a small colony of pink katydids has existed in the neighborhood of his summer home at Woods Hole for a period of at least two years. As evidence of the existence of other examples of this color phase, a second nymph like the first was collected. Upon searching the literature I have found a record of this pink form at "Woods Holl" as far back as 1886. Scudder (1897) re- ports specimens collected by Mrs. Sidney Smith, Mr. Richard Rathburn and Prof. A. E. Verril in August of that year. Again in 1912 this form is reported by Glaser (1912) to have been collected by Dr. A. S. Pearse and Mr. Gray of the Marine Biological Laboratory staff. Mr. Gray also collected a yellow color phase the same year. Apparently this colony has main- tained itself for 60 years in spite of its conspicuous color, which defies all the laws of protective coloration.

This form is not an erratic color "freak" due to food habits or peculiarities of environment, but has been proved by Dr. Joseph L. Hancock (Hancock, 1916; Nabours, 1929) 'in a breeding experiment to be a dominant hereditary character. Green katydids crossed with green mates produce all normal green offspring. A cross between a pink female and a green male produced 4 green to 9 pink in the F, generation with sexes equally divided. The pink forms were inbred and the result in F., was 38 green to 90 pink.

In the "List of Insects of New York" (Leonard, 1928), the brown and pink examples of this species have been collected at New Brighton and Clove Valley on Staten Island. Davis (1913) reports it in Long Island. Scudder (1878) reports a pink specimen of A. rotund if olia collected by Dr. Joseph Leidy in August, 1878, at Sharp Mountain, Schuylkill County, Penn- sylvania. The species determination of the Woods Hole speci- mens was made by Mr. J. A. G. Rehn and the specimens placed in the Academy Collection.

6 ENTOMOLOGICAL NEWS [Jan., '47

BIBLIOGRAPHY

DAVIS, W. T. 1913. Jour. N. Y. Ent. Soc. 21 : 74-75. GLASER, R. W. 1912. Psyche 19: 159. HANCOCK, J. L. 1916. Ent. News 27: 70-82. LEONARD. 1928. List of Insects of New York. LUTZ, F. E. 1921. Field Book of Insects. Plate 19. NABOURS, R. K. 1929. Ent. News 40: 14-16.

SCUDDER. S. H. 1878. Psyche 2: 189; 1897. Psyche 8: 54-55; 1901. Ent. News 12: 129-130.

A Note upon Two Neglected Species of Formica Linn. (Hym. : Formicidae)

By W. L. BROWN, JR., State College, Pennsylvania

In 1903, in a paper on Hymenoptera from Beulah. New Mex- ico, H. L. Viereck described a new variant of Formica fusca Linn, and named it "var. denslventrls n. subsp." The descrip- tion was vague and misleading, especially in regard to color details. Wheeler, in his 1913 revision of Formica, placed densl- ventrls in the synonymy of F. fusca var. subaenescens Emery, though he followed the notation with a questionmark. In the short discussion of his action, Wheeler stated that he had never seen the types.

The author has recently come upon Viereck's types in the col- lection of the Academy of Natural Sciences in Philadelphia, and even cursory examination has convinced him that the speci- mens cannot belong to subaenescens. The red color of the head and thorax in the types at once separates them from siibacn- csccns, which is colored black or blackish throughout these re- gions.

The type was keyed down in Wheeler's key to Formica in the 1913 paper to couplet 22, which includes F. fusca var. uco- clara Emery and F. fusca var. bland a Wheeler. It agrees with neither alternative. After comparing the types with various members of the fusca-rufibarbis complex, the author is satisfied

Iviii, '47] ENTOMOLOGICAL NEWS 7

that densivcntris is a valid subspecies. Presented below is an attempt to improve upon the original description.

Formica fusca subsp. densiventris Viereck

Formica fusca var. densiventris n. subsp. Viereck, Trans. Amer.

Ent. Soc., XXIX, p. 73 (1903). Worker. Formica fusca var. subaenescens Wheeler, Bull. Mus. Comp.

Zool., LIII, pp. 504 and 505 (1913). Worker. Emery, Gen.

Insect.; Formicidae: Formicinae, Fasc. 183, p. 248 (1925).

Worker.

Worker (ANS Type No. 4955) : 5.1 mm. Head in shape that of fnsca group in general. The median clypeal carina ex- tending from the anterior clypeal margin not quite to the anterior margin of the frontal area; maxillary palps long. Promesono- tum and epinotum convex as seen from the side in profile, the mesepinotal constriction cut fairly deeply and broadly, and the epinotum without an angle, though rather high. Petiolar scale seen from in front rather narrow, the superior borders originat- ing from an insignificant flattened space at the apex and passing through even, insensible curves into the lateral borders.

Head, thorax, petiole and gaster shagreened and opaque, frontal area and greater part of the legs shining. Mandibles longitudinally striate.

Hairs moderately long on dorsum of the head, truncate, scarce above compound eyes, absent on the gula. A few short sub- clavate hairs on the pro- and mesonotum, sides of the epinotum and on the ventral surface of the petiole. A set of three erect hairs on each side of the superior border of the petiolar scale. Dorsum and venter of gaster with scattered hairs of varying length, often truncate.

Pubescence of head and legs dilute and inconspicuous ; of gas- ter, long, dense and slightly silvery under magnification.

Ground-color of head, thorax and petiole light brownish-red with an area between and above the compound eyes, dorsum of pro- and mesonotum, parts of the thoracic pleurae, coxae, and scale of petiole deeply infuscated. Gaster very dark brownish-

8 ENTOMOLOGICAL NEWS [Jan., '47

black; legs brown with joints more yellowish; antennae light reddish brown and slightly infuscated toward their tips.

Paratype specimen: 4.5 mm. The petiolar node is nar- rower than in the type and much more acute, forming a dis- tinct angle at its apex. Only one hair is present on the petiolar border, and it is far down on the lateral part of the border. Some hairs may be missing due to mishandling, however. In other respects, the paratype specimen is much like the type. Numbered ANS paratype 4955-1.

The two type specimens came from Beulah, New Mexico, and were collected by H. Skinner August 17, 1901.

There are two other workers in the collection which agree rather closely with the types, but which have the infuscated areas on the head and thorax lighter and less extensive. One of this pair has the petiole narrower even than the type and para- type, and more acute above. The latter are labelled "Head of Daily Canon" and were collected by T. D. A. Cockerell. "Daily" (or "Dailey") Canyon is in the region of Beulah, which lies at some 8000 feet altitude.

This subspecies is related to F. jnsca var. iicoclara and jnsca var. blanda, but differs in having the gaster much darker in color and the petiolar scale narrower. The more rounded pro- file of the epinotum distinguishes the form from F. mfibarbis vars. occidita Wheeler and gnaua Buckley.

Collections of the forrns of the fiisca-ntfibarbis complex hav- ing reddish head and thorax should be made in the Beulah re- gion before all doubt about this form is removed, since the Formicas of the complex are apparently quite variable even in series from one colony.

Formica aterrima Cresson redescribed

Formica aterrima Cresson, Proc. Ent. Soc. Phila. IV, p. 426 (1865). <?.

Male (ANS Type No. 1853) : Length 9.4 mm. Frontal area with very fine arching cross-striation, very slightly shining.

Iviii, '47] ENTOMOLOGICAL NEWS 9

Head, thorax (especially the sides), femora and petiolar scale bearing abundant long, slender grayish hairs, also present but not abundant on the gaster. Eyes hairy ; tibiae with oblique hairs. Pubescence of the gaster long, appressed, fairly dense, but allowing the visibility of the integumental surface, which appears under strong light as a shining, finely shagreened sur- face. Legs, funiculi of antennae and gaster very dark reddish brown. Scapes, head, thorax and petiolar scale a very dark brown approaching black. Wings clear except for the basal one-third, which is tinged with brownish-yellow. The speci- mens are quite possibly faded through age in both type and para- type specimens.

The paratypc male (ANS Type No. 1853-2) agrees closely with the type specimen, but lacks most of the ventral and poste- rior portions of the gaster, due to the attacks of museum pests.

Cresson described this species from among collections made by James Ridings in the Colorado Territory during the summer of 1864. According to information obtained from persons fa- miliar with the Ridings material, the collection was done in the Denver-Pike's Peak area. Cresson's description was based principally on color, and apparently no distinction was made between pilosity and pubescence.

No mention could be found of this species in later myrmecolog- ical publications, but there seems to be no reason why atcrrima should not be considered a good subspecies of Formica rufa, or at least a form related to that species. Since the male is very close to some of the same sex of other American forms of rufa, the former course would seem to be the wisest. One of the geographical races of rnfa will eventually have to be synonymized as F. rnfa subsp. atcrrima Cresson, but this will be very difficult to bring about because of the similarity among the rufa males of the various subspecies and because of the presence of four or five of these subspecies in the vaguely defined original col- Icting area.

10 ENTOMOLOGICAL NEWS [Jan., '47

Two New Spider Wasps from Southwestern United States (Hymenoptera, Pompilidae)

By HOWARD E. EVANS, Ithaca, New York

In the course of studies on the Nearctic spider wasps of the tribe Pompilini in the department of entomology at Cornell Uni- versity, at various museums, and in the field, a number of ap- parently undescribed species have been encountered, two of which are described herein. While I fully realize that the mere description of species can only add to the existing confusion in the group, it seemed best to describe these forms as a by-product of a more comprehensive review of the group, which may take considerable time.

Until a more satisfactory classification of these wasps can be attained, it is difficult to place many species generically with any degree of certainty. It should be understood that in describing the species below I have used the genera Anopliits and Pompilus in a rather broad sense, following Haupt (Deutsche Ent. Zeit- schr., 1927, Beihefte, p. 168 and 230-231). Each of these may be divisible into a number of subgenera or species-groups, but for present purposes it has seemed sufficient merely to indicate the probable relationships of each within the two large genera.

Anoplius xerophilus new species

This species is closely related in general form to Anoplius r'elativus (Fox) and to A. bcJlicosns (Banks), but is readily dis- tinguishable from each. The female is easily separable by the strongly inflated first abdominal tergite, the male by the absence of long hairs on the fourth or fifth ventral segment or the sub- genital plate; both sexes have an unusually wide vertex and a depression on the inside of the anterior femora, unlike any other native species of the genus.

Male. 12 mm. long ; forewing 9.5 mm. Fuscous-black, the body covered with a close brownish pubescence which in proper light reflects various shades of deep metallic colors, chiefly pur- ple. Pubescence of lower front and disc of propodeum silvery and more coarse. Wings infuscated, slightly deeper apically,

Iviii, '47] ENTOMOLOGICAL NEWS 11

non-iridescent. Body with short erect hairs as follows : clypeus, front, vertex, temples, prosternum, pronotum, anterior coxae, posterior slope of propodeum ; more sparsely on the mesonotum, scutellum, postscutellum, mesopleurae, and middle coxae.

Head considerably wider than high, the greatest width 1.3 times the distance from the lower margin of the clypeus to the vertex. Mandibles with a single strong tooth on the inner mar- gin ; clypeus twice as broad as high, the anterior margin straight. Eyes diverging above, the distance between the eyes at the top 1.24 times the distance at the bottom. Distance between the eyes at the emargination of the orbits, about half-way between the antennae and the vertex, 1.3 times the distance at the bottom, and .65 times the width of the head. Front somewhat gibbous above the antennal orbits ; vertex slightly tumid about the ocelli. Postocellar line .7 times the ocello-ocular. Antennae relatively long and slender, the first four segments in a ratio of about 3:1:3: 2.7, the first four together slightly greater than the dis- tance between the eyes at the top.

Posterior margin of pronotum very weakly angled ; postnotum narrowly exposed dorsally, linear; mesopleurae rather short. Propodeum sloping but very little to near the posterior margin, where it is quite abruptly declivitous, the posterolateral corners faintly protuberant.

Anterior femora briefly compressed on the inside near the middle, as though pinched ; middle femora moderately and hind femora strongly compressed throughout, with numerous short spines on the upper, outer surface. Last segment of front tarsi asymmetrical, the inner side with a blunt lobe, the claw on this side strongly curved, the inner ray widely separated and acutely pointed. All remaining claws bifid, the inner ray truncate. Pulvillar comb of twelve rather strong, subparallel setae. Ulti- mate tarsal segments without spines beneath.

Transverse median and basal veins of forewing interstitial. Pterostigma short, a little longer than broad. Marginal cell rather long, slightly more than its length from apex of wing; radial vein rather evenly arcuate. First transverse cubital vein strongly curved; second submarginal cell nearly twice as broad

12

ENTOMOLOGICAL NEWS

[Jan., '47

as high, narrowed by about one half above. Third submarginal four-sided, not quite as broad above or below as second. First recurrent vein received about four-fifths of the way out on the second submarginal ; second recurrent received near the middle of the third submarginal. Anal vein of hind wing interstitial with the cubitus.

Male genitalia of Anoplius .rcrophilits new species, shown on left half, dorsal on the right.

Ventral surface

Abdomen cylindrical, slightly flattened above. Penultimate sternite with a V-shaped emargination, laterad of which it is rather hirsute. The usual pair of booklets is present, situated about half way out the sides of the V, and each subtended by a short linear depression. Subgenital plate broad, obtusely pointed apically, slightly folded medially, the sides faintly and evenly sloping. Aside from a small apical fringe of bristles, there are no conspicuous hairs on this sternite.

Iviii, '47] ENTOMOLOGICAL NEWS 13

Genitalia with the parameres the longest of the appendages, sublanceolate, nearly straight, beyond the basal third quite setose. Parapenials slightly shorter, simple and slender, embracing the simple, deeply cleft aedeagus. Volsellae about five-eighths the length of the parameres, somewhat sickle-shaped, broadened apically, acutely pointed. Disc of volsella set rather densely with stiff, erect setae, most of which are sinuate and somewhat up- turned distally ; base of volsella with several very long, straight hairs. Basal booklets single as in all species of Ano pints. (See figure.)

Female. 12 mm. long, fore wing 10 mm. In color much like the male, but without the silvery pubescence on the front and propodeum, the purple sheen somewhat stronger and extending to the femora. Head and thorax with erect hairs as in male ; all abdominal sternites with a fewr slender hairs, as well as ter- gites three to five. Ultimate tergite with the dense brush of bristles which is characteristic of the genus. Corneous portion of last segment, just above sting, fulgid and somewhat fulvous.

Head in anterior aspect ovoid, the width 1.2 times the distance from the anterior margin of the clypeus to the vertex. Clypeus broader than in male, 2.6 times as broad as high, slightly broader than lower face. Eyes diverging somewhat above, the distance between the eyes at the top 1.1 times the distance at the bottom. Distance between the eyes at the emargination of the orbits 1.2 times the distance between the eyes at the bottom, and .6 times the width of the head. Postocellar line .8 times the ocello-ocular. First four antennal segments in a ratio of about 3 : 1 : 3.7 : 3.2, the third equal to slightly more than half the distance between the eyes at the top.

Wing venation and structure of thorax like male. Propodeum higher than in male, the declivity more oblique and somewhat concave behind. Front tarsi with a comb of spines only slightly longer than the width of the segments bearing them; three comb-spines on the basitarsus. Claws toothed ; ultimate tarsal segments with a few median spines beneath. Femora as in male, the middle and hind femora less strongly compressed and less strongly spined.

14 ENTOMOLOGICAL NEWS [Jan., '47

First abdominal tergite strongly swollen, the anterior face nearly perpendicular to the dorsal plane. Dorsal part of first tergite with a median linear impression. Abdomen tapering be- yond the third segment, the tip bristly.

Six paratypes, all males, vary from 8.5 to 12 mm. in length, and show minor differences in head measurements and in vena- tion.

Holotypc: J1; NEW MEXICO, Steins, Grant Co., July 14, 1917 (J. C. Bradley and J. Bequaert; on Acacia greggii). Allotypc: $ ; same data as type. Paratypes: ; same data as type. 2 <$<$, New Mexico, Steins, Grant Co., July 14, 1917 (J. C. Bradley and J. Bequaert). J1; ARIZONA, Bowie, Cochise Co., July 14. 1917. [all at Cornell Univ.] <$ ; Arizona, Apache Camp, Santa Catalina Mts., 5500 feet, Pima Co., July 25, 1917 (J. Bequaert). [Mus. Comp. Zool.] J1; CALIFORNIA, Coalinga, Fresno Co., June 1-3, 1907 (J. C. Bradley). [Cornell Univ.]

Pompilus orophilus new species

In general habit suggestive of members of the subgenus Soph- ropompilus, but the long, slender antennae and narrow front place it in Pompilus s. str. From such species as Pompilus angitlaris (Banks), P. solonus (Banks), and P. luctnosns Cres- son it differs in the much longer comb-spines and more brilliant coloration.

Female. 7 mm. long; forewing 5.5 mm. Black, most of the body rendered a deep iridescent Prussian blue, ranging into dull bluish-violet in older specimens, by the minute, almost scale- like setulae which cover the body. Pubescence of lower half of clypeus and all the appendages brownish. Wings subfuscous, more dark beyond the cells, highly iridescent, the forewings above reflecting bluish-violet, the hind wings the colors of the spectrum. Body with erect hairs as follows : base of mandibles, clypeus, front, vertex, temples, and prosternum moderately densely ; pronotum, front coxae, and tip of abdomen more sparsely.

Head in anterior aspect subcircular, the greatest width 1.14 times the distance from the lower margin of the clypeus to the

Iviii, '47] ENTOMOLOGICAL NEWS 15

vertex. Mandibles with two teeth on the inner margin, the outer subtended by a carina. Clypeus wider than face, 2.3 times as wide as high, anterior margin truncate. Face quite narrow, distance between the eyes at the bottom subequal to the distance between the eyes at the top. Space between the eyes at the emargination of the orbits 1.26 times the distance at the bottom, and .5 times the width of the head. Postocellar line 1.2 times the ocello-ocular. Antennae long and slender, the first four segments in a ratio of about 3 : 1 : 4.5 : 3.5, the third segment sub- equal in length to the space between the eyes at the top.

Pronotum rather short, posterior margin arcuate. Meta- postnotum dorsally nearly as long as the postscutellum, showing very faint cross-striations, with a median impression laterad of which it is slightly arcuately broadened (though by no means as broadly and strongly as, for example, in Scricopouipilns}. Pro- podeum sloping rather smoothly, with a well-defined median line and a pair of weaker lines running obliquely ventro-caudad from the stigmata.

Anterior tarsi with a strong comb of spines which are about three times as long as the width of the segments bearing them ; three are on the basitarsus, the last one nearly equal to the length of the second segment. Claws toothed ; pulvillar comb of about eight rather weak setae. Ultimate tarsal segments without spines beneath.

Forewing with the transverse median vein meeting the median slightly before the basal. Pterostigma very short ; marginal cell short, twice its length from the wingtip. Radial vein rather evenly arcuate from stigma to beyond the third submarginal, then nearly straight. Second submarginal cell almost twice as broad as high, narrowed by more than one half above by the conver- gence of the first and second transverse cubitals, the former start- ing proximad of a line drawn perpendicular to the costa at the base of the stigma. Third submarginal cell quite short, higher than broad, narrowed by about a half above, one third shorter on the radial vein than the second submarginal. First recur- rent received two-thirds of the way out on the second submar- ginal, second recurrent two-thirds way out on the third sub- marginal.

16 ENTOMOLOGICAL NEWS [Jan., '47

Abdomen subsessile, shorter than head and thorax, tapering rapidly beyond the fourth segment, the tip with a few weak hairs above and below.

Except for minor venational differences, the two paratypes agree very closely with the type.

Holotype: $; NEW MEXICO, Raton, Colfax Co., 7000 feet, August 12, 1946 (H. E. Evans; taken on the stones of a dry stream-bed bordering a mountain meadow). [Will be deposited in Mus. Comp. Zool.] Paratypes: $; COLORADO, Texas Creek, Fremont Co., Sept. 18-19, 1917 (R. C. Shannon). [Cornell Univ.] $; CALIFORNIA, Los Angeles Co. (Coquillett). [U. S. Nat. Mus.]

On the Identity of Entomobora Gistel, 1857 (Hymenoptera: Psammocharidae)

By V. S. L. PATE, Ithaca, N. Y.

In 1857, Johannes Nepomuk Gistel (or Gistl) published a work entitled Achtlnmdert und zwansig neue oder unbescJirie- bene zvirbcllose Thiere. This apparently was issued in two editions: one, as pages 515-603 of the second volume of Gistel's Vacuna oder die Geheimnisse aus der organlschen und leblosen Welt; another, as a separate work of 94 pages; both appeared in 1857. I have seen only the latter in the library of the Acad- emy of Natural Sciences of Philadelphia, but according to Strand, who gave a collation of this work in 191 7, l both are identical except, of course, for the pagination.

In addition to the eight hundred and twenty new species de- scribed, Gistel proposed a considerable number of new genera. One of these was Entomobora, a Psammocharid, erected for the reception of the new Lusitanian species, E. acstiralis. Through an unfortunate oversight and clerical error, this name was omitted from my recent catalogue of the generic names of the Psammocharidae '2 and I take this opportunity to add it to

lArch. Naturges. Abt. A, vol. 82, Heft 5, pp. 75-101 (1917). 2 Trans. Amer. Ent. Soc., LXXII, pp. 65-137 (1946).

Iviii, '47] ENTOMOLOGICAL NEWS 17

the list of names of these wasps. Gistel's work is rather rare, little known, and hitherto has largely escaped the notice of Hymenopterists. Consequently I append below Gistel's orig- inal descriptions : both genus and species were described on page 51 of the separate edition of the above mentioned work, and on page 563 of the second volume of Gistel's Vacuna.

Entomobora *

Corpus valde compressum.

Caput elypeatum [sic], clypeo quadrato maximo truncato- prominente ; fronte devexa, plana.

Alae cellulis dentatis ; cellula alarum anticarum tertia infra- marginali trigona.

Habitus Pompili ; ad familiam Pompilorum pertinet.

Aestivalis *. E. aterrima sericea, abdominis parte media rufescente, alis infumatis marginibus nigro-maculatis. $. Algarbia. [in southern Portugal.]

Inasmuch as only one species, E. aestivalis Gistel, 1857, is mentioned in the original description of the genus, this species automatically becomes the type of Entomobora by monotypy.

The question now arises: what is Entomobora? Gistel's de- scription, though brief, nevertheless gives several very distinc- tive features like the strongly compressed body, the very large, prominent and truncate quadrate clypeus, and the trigonal third submarginal cell of the fore wing. After a study of various European species and groups, I have come to the conclusion that Entomobora aestivalis is probably a species of Pedinaspis Kohl, 1884, possibly Pcdinaspis Insitanicus Haupt, 1936,3 or a closely related species. Of course, the specific identity of Ento- mobora aestivalis is entirely dependent upon an examination of Gistel's type which, before the recent war, was probably in the Munich museum.

Gistel's name was proposed almost a quarter of a century before Kohl established Pedinaspis which, if my conclusions are correct, must therefore be placed as a synonym of Enlomoboni.

3 Boll. 1st. Ent. R. Univ. Bologna, IX, p. 79 (1936).

18 ENTOMOLOGICAL NEWS [Jail., '47

Moreover, Haupt 4 and Bradley 5 consider this genus to be type of a tribe or subfamily, Pedinaspini (correctly Pedinaspidinae or Pedinaspidini), which should henceforth be known as the Entomoborini.

Notes on District of Columbia Wasps

By DAVID G. SHAPPIRIO, Washington, D. C.

Vcspula sqiiainosa (Dru.). An underground nest of this com- mon yellow- jacket was attacked in September, 1946, in order to obtain any parasites present. When carbon disulfide was poured down the entrance in the usual manner, the inhabitants of the nest issued from several additional openings, some of which were three feet or farther away. An investigation re- vealed five distinct entrances, one of which was lined with paper of the type used by the wasps in covering their nest, and out of which queens and males only flew. From all the other en- trances, all forms, queens, males, and workers, flew. Is this merely a coincidence, or is it of some special significance?

Podium luctuosum Sm. and P. Carolina Rob. A number of specimens of these uncommon wasps were taken during June of 1944, 1945, and 1946 in Washington by Mr. Morton Vogel and myself, all but two on flowers of staghorn sumac (RJuis Jiirta). The remaining two were captured in an aerial trap.

Didincis latimana Mall. & Roh. and D. tc.vana Cr. (Deter- mined by Dr. K. V. Krombein.) One male specimen of lati- mana and twelve males and sixteen females of tc.vana were taken between August 26 and September 5, 1946, at various localities in the District of Columbia, all by sweeping in lawns which had been allowed to grow to a height of six inches or more. Per- haps this interesting species has at last become a common mem- ber of our fauna.

* Mitt. Zool. Mus. Berlin, XV (1), p. 112 (April, 1929). 5 Trans. Amer. Ent. Soc., LXX, pp. 29, 30, 34 (1944).

Iviii, '47] ENTOMOLOGICAL NEWS 19

Notes and News in Entomology

Under this heading we present, from time to time, notes, news, and comments. Contributions from readers are earnestly solicited and will be acknowledged when used.

News from Italy. According to a letter received from Dr. Guido Grandi, Director of the Instituto di Entomologia della Universita, Bologna, the Institute was destroyed by the Anglo-American bombardment, but by repeated removals dur- ing three years, partly preceding and partly subsequent to the period of bombardment, all the library, collections, and appara- tus were saved. The Institute is now in reconstruction and has fully resumed its activities. Publication of the Bolletino has been continued and the 15th volume will shortly be issued.

The Societa Entomologica Italiana was seriously and irre- parably damaged. The bombarding destroyed 50,000 volumes. The "Bolletino" and "Memorie" are nevertheless being con- tinued in reduced scale.

Amongst Italian Entomologists, Dr. Grandi notes that Pro- fessor Gestro and Dr. Finzi have died. Corti, Giordani, Soika, Goidanich, Gridelli, Guiglia, Invrea, and Masi are alive and well. J. C. BRADLEY.

Field Releases of Microplectron fuscipennis Zett., in New Jersey (Hymen.). The parasite laboratory of the New Jersey Department of Agriculture, reared and released during 1945, approximately 4,688,000 individuals of Microplectron fuscipennis Zett., a chalcid, cocoon parasite of the European pine sawfly. In general these parasites were liberated, at the rate of 3,000 per acre, in 32 sawfly infested plantations in the northern half of the state, between July 11 and August 23.— H. B. W.

Production of Macrocentrus ancylivorus Rohw., in New Jersey (Hymen.). During 1945, about 56,000 individuals of Macrocentrus ancylivorus Rohw., were produced for use in con- trolling the Oriental peach moth Grapholithu inolcsta (Busck) in peaches. The entire production was turned over to Dr. B. F. Driggers of the New Jersey Agricultural Experiment Station for experimental work designed to compare the relative effec-

20 ENTOMOLOGICAL NEWS [Jan., '47

tiveness of parasites released against the first and second broods of peach moths. These parasites were produced by the parasite laboratory of the New Jersey Department of Agriculture. At present there are four other laboratories in New Jersey that are active in rearing this parasite. H. B. W.

Summa Brasiliensis Biologiae. A new publication enti- tled Suuniia Brasiliensis Biologiae has come to hand. It is a publication of the Getulio Vargas Foundation, established in December, 1944, and with Fascicle 11, dated October, 1946, was still in its first volume. Communications should be directed to the Divisao de Intercambio c Docuuienta^do, Cai.va Postal no. 4081, Rio de Janeiro, Brasil. Fascicle No. 11, "Bunostoma brasiliensis n. sp. (Drosophilidae, Diptera)," is by O. Frota- Pesspa. Other fascicles of entomological interest