) Oral angle—fr. notch................. L9OG -18— 20) .2232022— 26) ,, .142( 14215) Fr. notch—dorsal sulcus... . 120( Ai 13) ele 16). .135(. 125) Miaallas (lemme th) en 157@ 13=..19))" -198( -16— 23) .:130( .13=. 14) Maxillary palpus (total)... . 264( .23— .29) .288( .25— .32) .245( .22- .26) oe oe ee founte gle ck .072( .07— .08) .081( .08— .08) .066( .06— .08) a “ ee eee ee .068( .06- .08) .077( .07— .08) .059( .05— .06) s i. pee gi Ao nenes .050( .05— .05) .052( .05— .06) .044( .04— .05) as . tage An ooo .080( .08— .08) .082( .08- .08) .078( .07— .08) Wabial"palpus (total)... 500( .46- .52) .586( .49- .65) .308( .28— .32) s ss JOin toe ee 203 CaS — 3222) 234-2126) 146 (139815) se “ ake eras te .086( .07— .09) .097( .09- .10) .036( .03— .04) ye oe ene 086( .07— .10) .117( .09- .13) .041( .03- .05) os = SS TAS Se -134( .12— .16) .157( .13— .17) .080( .07— .08) Apex rostrum beyond fore coxa... .043( .01— .07) = .038( .01— .05) ~—.102( .05- .12) euethyot foreicoxa* -__.222651 4: -407( .40— .42) .519( -51—-.54) .385( .32— :42) Fore coxa beyond base troch..._.. .049( .04— .06) .054( .03- .07) .052( .04— .06) lind coxa (length). 409(0:38— .45)), .513( .46= 55)’ .373( 232=- .40) ee thy en 2I8( 22= 26) 295(-825=..33) 2430 20") 27) ei crochemten (leucth)ie 083( .07- .10) .111( .09- .14) .079( .06- .09) Sefer (leacthy le 366( .33- .40) .446( .39- .46) .358( .30- .40) co Cate Atle ee atees ae In ONG 28 188, aes GOIN) wala 7a 4.34) ATSUSHI} Otte wee mene Sik = BN NC PSS ON OC LS 335) : “I id os OLN Eni a na Meee On 127( .11- .15) .144( .13- .15) .140( .12- .16) ss “ Cire JY agi Slee sY ens .083( .07— .09) .089( .07— .10) .084( .07- .09) . fs eam ee ie cree deed Oe .054( .05— .06) .058( .05— .06) .055( .05— .06) . ce & - Sieeélav)2--.-. llONC l= cl) lO a= ol .093( .08— .10) Antepygidial bristles (upper)... .059( .04- .08) —.204( .18- .24) —.076) .06- .08) “ ee edhe) S20 1s2 17), 226323 029) 5813-1) os z (lower)... .078( .06— .10) .215( .19= .23) .096( .07— .12) mierrble Gneer (front mare)... 139( 12=) le) 4 270( .25- .29) 3 All measurements are given in millimeters, and the figures in each column are arranged as follows: Average (minimum-maximum), respectively. Fingers are based on measurements of the following number of specimens: S. a/pina=10(5-12) each of males and females from various localities (figures on total length based on 16 males and 20 females; S. macrodactyla 3 males (type and 2 paratypes). 4 Measured to the apex of the rounded extension which projects well past the base of the trochanter, 138 PROC. ENT. SOC. WASH., VOL. 44, NO. 7, OCT., 1942 i; “(rear Seas Aa 9 M26 M6=220) 2 pice ee ee .281( .27— .29) Secu ance 1 (dvammecer an MOSS OHOSGL0 a an ae 068( .06- .08) ‘i *Sswi(apexslower ‘sps)’ 028 (.02= 04) jee eee eee .072( .06- .08) Sternite [X—external (length)... .158( .10- .20) 9 .197( .18— .20) es + WGwidth=base)058(204— 07) Sa ee .072( .06— .08) shes ae 2 (Gals apes 058 05-6) 043( .04- .05) i “internal (length)... . D5 S23 229) eee eee .348( .31- .37) EXPLANATION OF PLaTE 13. Figure 1. Stenistomera alpina (Baker). male. X 42. Abbreviations.—Ant., antenna; Ap., apodeme; Ap. Sp., apical spines; Apy. Br., antepygidial bristles; B. St., basal sternite; Cl., claw; Cx., coxa; D. P., dermal pit; D. S.. dorsal sulcus; Em., epimeron; Es., episternum; F., movable finger of clasper; Fe., femur; F. N., frontal notch; G., gena; Ies., infraepisternum; L. P., labial palpus; M., manubrium of clasper; Max., maxilla; Mes., mesonotum; Met., metanotum; M. P., maxillary palpus; Occ., occiput; Par., paramere of penis; P. C., pronotal ctenidium; Pen., penis; Pl. Br., plantar bristles; Pro., pronotum; Pv., proventriculus; Pyg., pygidium; Sp. P., spring of penis; St., sternite; Tar., tarsus; Ti., tibia; Tg., tergite; Tr., trochanter. Figure 2. Stenistomera alpina (Baker), female, antenna. X 255. Abbreviations.—Flg., flagellum; Ped., pedicel; Sc., scape; Sh., sheath. Figure 3. Stenistomera alpina (Baker), female, modified segments. X 60. Abbreviations.—Ap. Br., antepygidial bristles; D. R. S., duct of receptaculum seminis; Pyg., pygidium; R. S. receptaculum seminis; St., sternite; Sti., stigma; Sty., stylet; Tg., tergite. Figure 4. Stenistomera (Miochaeta) macrodactyla, new species, male, head. X 68. Abbreviations.—Ant., antenna; D. P., dermal pit; F. N., frontal notch; L. P., labial palpus; Max., maxilla; M. P., maxillary palpus. Figure 5. Stenistomera (Miochaeta) macrodactyla, new species, male, modified segments. X 65. Abbreviations.—Ap. Br., antepygidial bristles; F., movable finger of clasper; M., manubrium of clasper; Par., paramere of penis; Pen., penis; Pyg., pygidium; Sp. Pen., spring of penis; St., sternite; Tg., tergite, PLATE 13 PROC. ENT. SOC. WASH., VOL. 44 HO ; -| Tgvil Hi Ap Br a ——— — Sti JP Brera (52 5 Cs —-Prya Fs 7 Ty vill ~ Still [139] 140 PROC. ENT. SOC. WASH., VOL. 44, NO. 7, OCT., 1942 A NEW HETEROTHRIPS FOUND ON OAK (THYSANOPTERA, HETEROTHRIPIDAE). By J. C. Crawrorp, Bureau of Entomology and Plant Quarantine, U.S. Department of Agriculture. The genus Heterothrips is represented in the eastern part of the United States by less than a dozen described species, and the discovery of a new form in great abundance after so many years of collecting seems quite unusual. Heterothrips quercicola, new species. Female.—Length (fully distended) 1.7 mm. Dark blackish brown, legs more distinctly blackened but with fore tibia lighter colored and pale yellowish apically and more or less along fore margin, mid and hind tibiae somewhat lightened apically, tarsi light yellowish; antenna dark brown, except that seg- ment II is grayish yellow apically, II] grayish yellow to second transverse incision, beyond which it is tinged with brown, and IV lighter brown than following segments. Head about 1.4 times as wide as length (measured from front of eyes), widest forward of middle and with cheeks gently rounded; in dorsal aspect, with a few minute spines and with faint, transverse striae in front of ocelli and with distinct striae behind them; anterior ocellus less than one-half the diameter of a posterior ocellus; frontal costa with a deep V-shaped emargination; an- tennal segment I with a median, transverse, carinate line, segment III elongate, obconical, with the usual two incisions and lightly sclerotized bands at about basal one-fifth and three-eighths, respectively, I] and IV each with a band of sensoria apically, that on IV in a light area, IV roundly tapering to base, V somewhat barrel shaped, VI to VIII with sides only very gently rounded, IX conical. Prothorax with anterior and posterior margins almost straight, lateral margins rounded, pronotum with transverse anastomosing lines forming irregular polygons; mesonotum with close, strong, transverse lines anastomosing very sparsely except anteriorly; metanotum with close, concentric striae; forewings gray brown, with a light area extending from apex of anal lobe to the point where the basal spine on the hind vein is situated; costa, fore vein, and hind vein with about (29-)! 34, (20—-) 24, and 14 (-15) spines respectively. Abdominal terga II-VII laterally with sparse pubescence on transverse anastomosing lines, nearly free of pubescence medially; VIII with similar pubescence over entire surface except extreme median base; IX with similar pubescence on posterior two-thirds (forward to discal bristles), X bare; combs on segments I-V broadly interrupted medially, complete on VI-VIII; apical margins of terga II-V with a few slender spines medially; spines of combs with thick bases, the inner ones on terga I-V distinct or in part with irregularly coalesced bases, those outward coalesced into plates bearing six to eight spines, these plates much broader than long and the spines on them three to four times 1 Numbers in parentheses represent the range of unusual variation, those outside parentheses, the usual number. PROC. ENT. SOC. WASH., VOL. 44, NO. 7, OCT., 1942 141 as long as plates; segment 6 with similar plates at extreme sides bearing about five spines per plate; segment 7 with some of lateral spines with coalesced bases; sterna II-VI with marginal fringes which laterally are basally coalesced into plates with two to five spines, segment 10 above split open to circlet of spines. Measurements (in microns): Head, length from front of eye 120, ‘total length 128, greatest width 172; prothorax, median length 192, width 241; pterothorax, median length 272, width 316; forewing, length 860; ovipositor 292, Antennae: 1 2 3 + 5 6 7 8 9 28 42 60 40 28 33 18 16 16 Male.—Length distended 1.20 mm. Similar to the female but third antenna segment tinged gray brown basad of transverse incision and light brown beyond, fourth antennal segment almost as dark in color as following segment; fringes of terga laterally only slightly and irregularly coalesced basally; tergum [IX not fringed and without processes; sterna IV-VIII each with a subbasal, broadly elliptical, glandular area, that on sterna IV about 24x 10 yw; sterna II-VIII with continuous fringes, the bristles of which have slightly enlarged bases. Antennae (in microns): 1 2 3 + 5 6 7 8 9 24 36 58 40 26 29 16 1S i) Type locality —Babylon, Long Island, N. Y. Type.—Catalog No. 56445, United States National Museum. Host.—Quercus sp. Described from 62 female and 17 male specimens, including holotype female and allotype male, on slides (and many females in alcohol), taken from the catkins of a scrub oak, probably 9. marilandica, May 3, 1938; 4 males beaten from pine, April 26, 1938; and 3 males and 1 female beaten from pine, May 3, 1938 (J. C. Crawford, collector). Differs from all the known American species which have the abdominal fringes coalesced into plates by having the spines on the plates three to four times as long as the plates and the plates themselves transverse; ail the previously known species have spines no longer than the plates except pectinifer Hd. which has them about one and one-half times the length of the plate but the plate itself as Jong as or longer than broad, and vernus Hd., which has the spines two to three times as long as the plate, the sixth antennal segment shorter than the fifth, and in the male has the glandular areas of the sterna small and only slightly elliptical, measuring about 14 X 8 uy. 142 PROC. ENT. SOC. WASH., VOL. 44, NO. 7, OCT., 1942 OVIPOSITION HABITS AND EARLY STAGES OF ORASEMA SP. By H. L. Parker. Bureau of Entomology and Plant Quarantine U. S. Department of Agriculture. In April, 1941, the writer observed a chalcid fly’ ovipositing in the leaves of zarzaparilla colorado (Muehlenbeckia sagittifolia Meissn., Fam. Polygonaceae) at Reconquista, in the Province of Santa Fe, Argentina. A search on the leaves of other nearby plants revealed that similar egg punctures, probably of the same species, occurred on mburucuyo (Passiflora coerulea L., Fam. Passifloraceae), barba de viejo (Clematis sp., Fam. Ranunculaceae), and tripa de fraile (Pithycoctinium cyanchoides DC. clematidium Gris., Fam. Bignonaceae). Eggs were very abundant on these plants, literally millions being present, especially on M. sagittifolia, and it is to material from this plant that the observations refer. Eggs were found in great abundance on these plants in various directions for distances of 10 to 20 kilometers from Reconquista. None was found at Vera, however, about 60 kilometers away, but the searches in this place were limited to a few hours. On another occasion, at Puerto Tirol, near Resistencia in the Chaco Territory, similar egg punctures were noted on an unknown plant by Dr. A. Ogloblin, who stated that they were very similar to the egg punctures of Orasema aenea Gahan on Ilex paraguayensis, and that the latter species was common throughout the Chaco and Misiones on many species of plants. The eggs of Orasema sp. observed by the writer are deposited in the tissue of the leaf on the underside. The punctures are made, for the most part, near the border of the leaf, but many leaves have the entire underside almost completely covered with punctures, which cause them after a few days to turn light brown. One can distinguish leaves heavily punctured from a distance of many yards. When only a few eggs are laid, they are usually in a row or rows, with the eggs more or less evenly spaced in the rows (fig. 1). Very often, however, so many eggs are laid near the outer edges of a single leaf that all sem- blance of order appears to be lost. In ovipositing the female takes a position on the underside of the leaf with her body oriented more or less longitudinally with the leaf. She curves her abdomen somewhat underneath the body and gives a short, steady thrust downward and for- ward into the leaf tissue. This movement requires only a few seconds, and apparently an egg is laid during the process, only 1 Adults of this fly were examined by A. B. Gahan, who stated that “ this [species] runs directly to Orasema aenea Gahan in my key and agrees with that species except that it is distinctly less deeply sculptured. I am in doubt as to the identity.” PROC. ENT. SOC. WASH., VOL. 44, NO. 7, OCT., 1942 143 one egg being placed in each puncture. The female then with- draws her ovipositor, straightens out her abdomen, and quickly takes a step or so forward and repeats the process. Arriving at the edge of the leaf she turns about and starts another row of punctures, more or less parallel to the first, but sometimes diverging. The puncture is left open, the egg being placed rather far into the hole made by the ovipositor; it lies paraliel to the surface of the leaf, with the anterior pole nearest the opening of the wound (fig. 2). The tissue above the egg (inverted view of the leaf) dessicates somewhat and turns brownish. In many cases the punctures become slightly scarified, undoubtedly after the hatching of the egg, and are partly closed up with a gall- like, or cancerous growth. Some females were observed apparently in the act of oviposi- tion on leaves bearing old oviposition scars. Close examination revealed no new punctures, however, although newly laid white eggs were noted in some of the old punctures, partially extruding and sometimes entirely outside the cavity. Other eggs were noted lying about on the leaf surface where no puncture had been made. The writer was thus led to assume that the females attempt to utilize the punctures more than once for egg laying. The ovarian egg (fig. 3) is approximately oblong-oval, with a heavy stem, or peduncle, at the pole taken to be the anterior, for this is the end of the egg which apparently issues last from the abdomen and lies nearest the opening of the puncture (fig. 2). Itis white and without sculpturing or other appendages. The deposited egg is similar except that the pedicel is more slender (fig. 4). There appear to be four or five thousand eggs in the ovaries of a female. Leaves were collected and kept in cardboard and tin boxes. Larvae hatched in both these containers and died therein, but the majority of larvae were found in the following June dead within the egg in the puncture. The illustrations were made from this material by treating it in warm water and weak potash for 48 hours, which distends the larva considerably and separates the segments so that they can be observed. The first-stage larva is of the well-known planidium type, being composed of the head and 13 body segments, of which the last is a fleshy lobe between the caudal cerci. It is dark brownish except for the fleshy parts between the sclerites. The head is somewhat heartshaped, slightly truncate posteriorly and anteriorly, with a fleshy portion around the mouthparts and an unsclerotized longitudinal strip ventrally. It bears two pairs of circular sensoria (probably the bases of setae) dorsally. The mandibles are of the usual comma shape. The body (fig. 5) is more or less spindle-shaped, being widest at the third thoracic PLATE 14 PROC. ENT. SOC. WASH., VOL, 44 es a@ ae ? et e: oy e? ee oe *e te Sie ee e ee eo? , e e e ° ee . e@ ° Che ‘. ee . ee . oot e e « ‘; ’ te ty ° ue ° e . ee « ee e e ee e ose are is Fig. 1, leaf of Muehlenbeckia sagittifolia showing pattern of egg punctures on underside of leaf; fig. 2 egg in situ with a fully developed first-stage larva within it; fig. 3, ovarian egg; fig. 4, deposited egg; fig. 5, first-stage larva, showing sclerotized parts only. [144] PROC. ENT. SOC. WASH., VOL. 44, NO. 7, OCT., 1942 145 and first abdominal segments. There are 12 sclerotized bands, or dorso-pleural plates, extending almost entirely around the body, as is usual with this type of larva. Setae are found in the following places. One pair dorsally on the first thoracic seg- ment near the posterior border and one pair ventrally also posteriorly; one pair dorsolaterally on the anterior edge of the second thoracic segment and one pair dorsally on the posterior edge; one pair dorsally on the third thoracic segment and one pair ventrally, both near the posterior border; one pair ven- trolaterally on each of the second and third abdominal segments near the posterior border; a pair of long caudal cerci apparently attached to the fleshy portion of the ninth abdominal segment, since no circular base can be discerned on the sclerotized part of chis segment, whereas in the other cases the circular bases are quite distinct. The second thoracic segment is the longest medially, the thoracic plates terminating ventrally in a simple manner, the first to fourth abdominal segments each have a dis- tinct tooth on each side posteriorly in a ventro-lateral posi- tion, and the inner angle of the posterior edge of the segments is somewhat poinied; the fifth abdominal segment bears two large teeth at its posterior-ventral margin; the sixth, somewhat wider than the preceding segments, is drawn out poscerioriv in a long tooth that is obtuse before the apex but has a sharp-pointed apex; the seventh and eighth are slightly drawn out to a poinc posteriorly, otherwise simple; the ninth seems to be a simple plate withouc teeth. NOTES ON THE SEASONAL HISTORY OF THE RABBIT TICK, HAEMAPHYSALIS LEPORIS-PALUSTRIS, IN OKLAHOMA. ! By Gaines W. Eppy.? ECONOMIC IMPORTANCE. Although the rabbit tick has been known for over seventy years, its importance in the dissemination and transmission of diseases has only recently come to light. It was shown to transmit spotted fever by Parker (1923) and was incriminated as a carrier of tularaemia by Parker, Spencer and Francis (1924). This tick is also a proved vector of tularaemia in British Colum- bia, according to Moilliet (1936), and was shown to carry that disease in Alaska by Philip and Parker (1938). 1A contribution from the Oklahoma Agricultural and Mechanical College Department of Entomology, Stillwater. 2 Now with the U. S. Department of Agriculture, Bureau of Entomology and Plant Quarantine. 146 PROC. ENT. SOC. WASH., VOL. 44, NO. 7, OCT., 1942 The rabbit tick likely plays an important role in the main- tenance of both tularaemia and spotted fever in nature. It also meets in common with the American dog tick, Dermacentor variabilis, on cottontail rabbits. The importance of rabbits as hosts for the American dog tick will be brought out in a sub- sequent paper. DISTRIBUTION. The rabbit tick is known to occur in southern Alaska, Canada, throughout the United States and in Central and South America. In Oklahoma, it probably occurs in every county but has been collected in only twenty-five of the seventy-seven counties as indicated on the accompanying map. The tick is more prevalent in the wooded eastern half of the State. Numerous animals have been examined in the western part of the State but only a few specimens have been collected. Distrivution of Haemenhysalis lenoris-nalustris ” “ a lee: Daauat PT Sa = 2 ee! SeencoL: fad OKLAHOMA SCALE: STATUTE mies o 7 wm wo we HOSTS. Rabbits and hares are the principal hosts for this tick. Birds, however, play an important role as hosts for the immature forms. Peters (1936) lists forty-six species of birds that have been attacked by the rabbit tick. In only a few instances have the adult stages been known to attack birds. Some of the more uncommon hosts, as listed by various PROC. ENT. SOC. WASH., VOL. 44, NO. 7, OCT., 1942 147 authors, are the horse, dasyure, cat, pine squirrel and man. According to Hearle (1938), chipmunks and ground hogs are commonly attacked in British Columbia. In Oklahoma, the writer has collected larvae from the thir- teen-striped ground squirrel (Citellus tridecemlineatus bodius); nymphs from the striped skunk (Mephitis mesomelas varians); nymphs from the fox squirrel (Sczurus niger rufiventer); larvae from the woodrat (Neotoma floridana attwateri); and larvae from the house cat. Many specimens have been taken from birds, including the eastern crow and domestic chicken. Field mice appear to be of little importance as hosts. At the time of this paper, a large number of mice (mostly Peromyscus spp.) have been examined in Iowa, but no rabbit ticks have been found. Rabbits and birds collected in the same locality have yielded many specimens. SEASONAL HISTORY. The rabbits killed, in obtaining information on the seasonal history, were taken in Payne county. Periodical collections were made from January 1, 1939, to January 1, 1940. Each month at least five and no more than thirty-two rabbits were collected, totalling 197. An attempt was made to examine a few animals each week, though in a number of instances this was impossible. For instance, more rabbits should have been examined during February and March than were in this case. Some of the animals taken in January were live-trapped. All the rest were shot, bagged in the field and taken to the labora- tory for examination. Usually the animals were allowed to remain in the bags for a few hours before removal of the ticks, since a large per cent will detach after the animals become cold. However, females have been found attached after twenty-four hour periods. The rabbit population on all areas where collecting was done, varied from one-tenth to five per acre. It has been known for some time that the rabbit tick is active during the warmer seasons of the year. Hooker, Bishopp and Wood (1912) state that the three active stages of the tick may be collected during all seasons of the year. According to Cooley (1932), it is not a winter feeding species in Montana, probably hibernating between active seasons. He also states that no records of adults have been taken in March, which would appear necessary unless the larvae hibernate over winter. Green, Bel] and Evans (1938) report the rabbit tick emerges from hibernation in Minnesota during the first part of April. The latter author (1940) states that the tick may be found during midwinter, but this is an unusual occurrence, Hixon 148 PROC. ENT. SOC. WASH., VOL. 44, NO. 7, OCT., 1942 (1940) says all stages may be collected during the winter months in Florida, but there is a marked decrease in numbers. In Oklahoma, both the larvae and nymphs were active during all months of the year. No males were collected in December and no females were taken in November or December. The larvae showed a great increase in June, July and August, with the peak in July. They were fairly steady in September, October and November but showed a marked decrease in December. Even though the temperature went below freezing in January, both flat and replete specimens were taken. In fact, about sixty per cent of the larvae were replete. The larvae, as with the other stages, showed an increase in March. The sudden increase in June was no doubt due, in part, to the first ovipositing females. No engorged nymphs were collected until the first part of March. They showed a steady increase until their peak in June. A fairly large number was present until December, at which time there was a marked decrease. Thirty-one rabbits were examined during January and February and seven females were removed. All the specimens were flat. It was not until March 17 that an engorging female was found. They appeared in much greater numbers during June but decreased in a similar manner following that month. This increase was probably was due in part to molting nymphs. Few specimens were taken in October and none were removed from the thirty-six rabbits examined in November and Decem- ber. The seasonal fluctuations of the males were similar to those of the females. The males appeared in greater numbers in April, May and June but became gradually fewer in numbers through November. No specimens were collected from sixteen animals examined in December. The above data indicate the immature stages of the rabbit tick are active during all months of the year, the females in all except the last two months, and the males in all except December. There was no direct correlation between the temperature and humidity and the number of ticks present. Temperature, however, appeared to be an important factor. The immature stages are more active during the colder months than are the adults. This tick is almost inactive during the winter months in the more northern States, such as Minnesota or Montana, but apparently becomes more active as one goes farther south, PROC. ENT. SOC. WASH., VOL. 44, NO. 7, OCT., 1942 149 A Summary oF A YEAR’S COLLECTION OF THE Rassir Tick, Haemaphysalis Leporis-Palustris, FROM THE Corron Tait Rassirt, Sy/vilagus Floridanus alacer, FROM JANuARy 1, 1939, ro January 1, 1940. NO. OF ANIMALS — AVERAGE NO. OF TICKS PER RABBIT EACH MONTH. DATE EXAMINED MALES FEMALES NYMPHS LARVAE TOTAL Jantiary =e = 26 215 58) Del 2a 4.64 February .:2......: 5 40 20 2.20 40 3.20 Marchi. 5 2 6 4.66 1.66 4.33 8.16 18.83 ENON SS SoA heer eee 32 12.03 5.87 6.81 68 25.40 Mary ai Peace ote Bt. 13 12S 3.30 8.92 358) 24.00 (nese eet 2S 19 25.72 18.84 22.05 48.94 115.56 July eee 17 6.88 5.41 DES 5 78.70 112.34 ANWR UI eae 11 5.90 3.81 8.27 27.45 45.43 September ___.... 15 6.66 Sisk SESS 10.86 36.18 October... ..-< 17 1:47 64 10.41 10.76 23.28 November. = 20 40 0 10.00 10.30 20.70 December... 16 0 a0) 62 2.18 2.80 REFERENCES. Cootey, R. A. 1932. The Rocky Mountain wood tick. Bul. 268, Mont. Agric. Exp. Sta. Evans, C. A. 1940. Correspondence. Green, R. G., Bett, J. F. and Evans, C. A. 1938. Rabbit tick population on the Lake Alexander Area, Minnesota. Wildlife Disease Investigation, pp. 80-86. Hearts, E. 1938. The ticks of British Columbia. Scientific Agric., 18 (7): 341-354. Hixon, H. 1940. Correspondence. Hooker, W. A., Bisnopp, F. C. and Woop, H. P. 1912. The life history and bionomics of some North American ticks. U.S. Dept. Agric., Bur. Ent. Bul. 106. Moruuet, T. K. 1936. Review of tularemiain British Columbia, with special reference to a recent human case. Can. Ent. 68: 121-124. Parker, R. R. 1923. Transmission of Rocky Mountain spotted fever by the tick, Haemaphysalis leporis-palustris Pack. Amer. Jour. Trop. Med. 3 (1): 39-45. Parker, R.R., Spencer, R.R. and Franets,E. 1924. Tularemia infection in ticks of the species Dermacentor andersoni Stiles in the Bitter Root Valley, Montana. Publ. Health Repts. (U. S.) 39: 1057-1073. Perers, H. S. 1936. A list of ectoparasites from birds of the Eastern part of the United States. Bird Banding, 7 (1): 9-27. Puitip, C. B., and Parker, R. R. 1938. Occurrence of tularemia in the rabbit tick (Haemaphysalis leporis-palustries) in Alaska. Publ. Rep. 53: 574-575. ACKNOWLEDGMENTS. The author is indebted to Dr. L. E. Rozeboom for advice and assistance in the work; to Dr. F. A. Fenton for financial assist- ance and encouragement; and to Dr. F. Baumgartner, Mr. G. A. Bieberdorf and Mr. M. Maxwell, who assisted in collecting some of the material. 150 PROC. ENT. SOC. WASH., VOL. 44, NO. 7, OCT., 1942 TWO NEW SOUTH AMERICAN SPECIES OF MEROTHRIPS HOOD (THYSANOPTERA, MEROTHRIPIDAE). By J. C. Crawrorp, Bureau of Entomology and Plant Quarantine, U. S. Department of Agriculture. Although the genus Merothrips is widely distributed, having been recorded from North and South America, South Africa, and the Hawaiian Islands, the number of species appears to be small, and specimens apparently are not taken in large numbers. The finding of two new species in South America seems to be noteworthy, especially in view of the size of one of the series. The following key will aid in identifying the species although, owing to the lack of detailed descriptions of two of them, it has been necessary to place these in a triplet rather than in the con- ventional couplets. KEY TO THE SPECIES. 1. Pronotum posteriorly with only 1 pair of long bristles... 2 Pronotum posteriorly with 2 pairs of long bristles. mirus, new species. 2. Sensoria on antennal segments 3 and 4 small, appearing as lateral facethike Spots) 24s ost Cork et 6 cee eee neers nigricornis Hood. Sensoria on segments 3 and 4 bandlike, extending almost across segments 3 3. Eyes ventrally produced caudad to a point beneath dorsal margin of head; postocular bristles much Jess than one-half as long as inter- ocellliairs) \.. tthe Ses Shee Sore Sa er et ee Ce cognatus Hood. Postocular bristles somewhat shorter than interocellars; pronotum with many discal bristles; pronotum with about 5 pairs of posterior marginal bristles and with a pair of discal furrows on anterior half williamsi Priesner. Eyes ventrally not produced; no furrows on disk of pronotum; post- ocular bristles about one-half as long as interocellars; 3 pairs of posterior marginal prothoracic bristles... plaumanni, new species. Merothrips plaumanni, new species. Female (macropterous).—Length about | mm. (distended, 1.4 mm.). Brown, with the head darkest and much darker in anterior half, prothorax about as dark as head posteriorly, pterothorax somewhat paler in color than prothorax and tinged with yellow, abdomen still lighter in color and palest in intermediate segments with terga I and IX-X almost as dark as pterothorax; fore legs yellow or very faintly tinged brownish, mid and hind legs light yellowish brown; antenna brown, with segment II brownish yellow, and extreme base of III, except the brown pedicel, colorless; sensoria of III and IV dorsally extending almost across segments; wings grayish brown, forewing pale at extreme base, and with a pale median area beyond anal lobe, the space between the veins paler; fringe of posterior margin of forewing on outer half with the hairs in pairs, of which one is longer, stronger, and straight, the other weaker and wavy; hind wing with a median darker stripe extending almost to apex; fore tibial PROC. ENT. SOC. WASH., VOL. 44, NO. 7, OCT., 1942 151 teoth small, nipplelike; hind tibial spurs well developed but the few bristles basad of them weak; line of fusion of terga [IX and X showing only faintly. Head from front of eye about as long as broad, with the produced portion between the eyes about 16 uw long; frontal costa with a wide shallow emargination; cheeks gently curved, subparallel, eyes somewhat protruding; a few very faint transverse lines near base of head; interocellar bristles just back of a transverse line tangent to the posterior margin of anterior ocellus and outside a line tangent to the outer margins of anterior and posterior ocelli; postocular bristles close to eyes, inserted 56 apart and about 9 uw from lateral margins of head; antennae elongate, slender, segments ITI-VIII pedicellate; pedicel of III apically with a sharp-edged ridge. Prothorax widened posteriorly, much narrower at anterior margin than median length; furrows separating notum from pleuron only slightly divergent in anterior half, thence rapidly so; no furrows anteriorly on disk; base with a few widely spaced, transverse, anastomosing lines; well-developed strong, anterior angular bristles directed forward and on each side a pair of anterior marginals close to the angulars, all these on the extreme anterior margin of notum; posterior angles each with a single long thin bristle and between them 3 pairs of posterior marginals; about 16 minor discal bristles, most of which are near the edges of the notum; all prothoracic bristles light brown; propleura as seen from above showing medially a single short bristle in a small, pale, circular area; mesoscutum with a single long bristle at each lateral angle; ptero- notum with very faint, widely spaced, transverse, anastomosing lines; dorsal margin of fore femur with a single moderately long (24 u) bristle at about distal two-thirds, a long one at about middle on outer side, and one about as long farther basad and well ventrad of middle of femur, beyond this latter bristle with a row of 4 distinct short bristles; femur with other scattered, short, weak bristles as well as a row along dorsal surface; dorsal surface of fore tibia with a single long bristle distad of middle and one somewhat basad and farther ventrad of this on outer side; fore and hind femora very greatly swollen; veins of forewing setose their entire length, costa and fore and hind veins with about 21, 3+11-13, and 10 bristles, respectively, the outer bristle on hind vein basad of the next to last on the fore vein. Abdomen normal in form, terga I-VIII with very faint, widely separated, transverse, very sparsely anastomosing lines; tergal bristles tinged brownish, on I-VIII, short, except those at lateral margins; four bristles on each lateral margin of II-VI similarly arranged, two on extreme margin, one of which is slightly in front of the middle, the other distinctly back of it, between them but more mesad the longest bristle of the group, the fourth bristle almost as far cephalad as the first mentioned but 28 u mesad of it; bristles on IX-X long, thin, almost colorless, drawn out to very thin ends, dorsolaterals of X surrounded by a circular area about 10 yu in diameter, this being two and one-half times the diameter of the point of insertion of other setae. Measurements (in microns, mostly from holotype): Head length 92, width across eyes 88, width just behind eyes 80, greatest width across cheeks 83.5, width at base 78.5; prothorax, median length 124, width anteriorly 96, greatest width including coxae 180; greatest width of pterothorax 208; wing length 605, width medially 37. Bristles, interocellar 68, postocular 30, anterior angular 25, posterior angular 68, lateral on mesoscutum 60, at middle of fore vein 30; on 152 PROC. ENT. SOC. WASH., VOL. 44, NO. 7, OCT., 1942 tergum IX, median 48, dorsolateral 152, lateral 152, ventrolateral 172; on tergum X, median 140, dorsolateral 144, lateral 128. Antennae: i 2 3 4 5 6 H 8 Length, 190 32) VA AQ My 327395 Spee Oo Width, 28s 26 19 iby 14 13 12 11 Male unknown. Type locality —Nova Teutonia, Santa Catharina, Brazil. Type.—Catalog No. 56446, United States National Museum. Described from 21 females collected on dead branches by Fritz Plaumann (to whom the species 1s dedicated) in 1941, 6 in May, | in June, and 14 in July (including holotype). In addition to the characters given in the key, this species differs in many other details from the description of wz//iams1 Pr., which is said to have the interocellars close in front of and somewhat mesad of the hind ocelli, hind tibia towards apex with many long rigid bristles, outer margin of fore tibia with one long bristle; head 127 » long and 135 wide; prothorax 176 uw long and 181 wide, pterothorax 306 u long and 238 wide, antenna VIII distinctly shorter than III, antennal segments much wider, especially III and IV, although of about the same length as in plaumanni; wing 748 long. The description of wi//iamsi made no mention of any ventral production of the eyes, a character not likely to have been overlooked by Dr. Priesner, and in this it would be distinguished from cognatus Hd. Merothrips mirus, new species. Female (macropterous).—Length about 1 mm. (distended, 1.35 mm.): Deep brown; head, and at times prothorax, blackish brown, abdomen palest, ptero- thorax somewhat lighter than prothorax, fore femora as dark as prothorax, fore tibiae paler and shading to brownish yellow apically, mid and hind femora somewaht paler than pterothorax, their tibiae and all tarsi brownish yellow; antennae entirely blackish brown, except the extreme whitish base of III and its pale-brown pedicel; pronotum with a single, long, posterior, angular bristle but also a long midlateral bristle opposite’ posterior end of propleuron as seen from above; anterior angular bristles long, strong, directed cephalad, slightly removed from anterior margin, the three pairs of bristles mesad of them suc- cessively farther removed from anterior margin; sense areas of antennal seg- ments III and IV extending dorsally almost across segments; body bristles brown, those of abdomen only faintly so; major body bristles thin and apically drawn out very thin. Head narrowest just back of eyes, with cheeks slightly divergent to near base, from front of eye shorter than greatest width, between the eyes produced about 19 w; frontal costa with a wide semicircular emargination; posterior half of head with a few widely spaced transverse lines strong enough to cause sides of head to appear to have 3-4 subserrations; eyes protruding; interocellar bristles 'Visible portion only. PROC. ENT. SOC. WASH., VOL. 44, NO. 7, OCT., 1942 153 almost one-half the distance forward from posterior to anterior ocellus and about on lines tangent to the outer margins of posterior and anterior ocelli; postocular bristles close to eyes, 88 apart and about 8 from lateral margins of head; head, in outline, with two short bristles just behind eyes; antennal segments long, slender; antennae III-VIII pedicellate, pedicel of III apically with a sharp-edged ridge. Prothorax wide across anterior margin, the sutures separating notum from pleuron at first gently divergent to beyond middle, thence rapidly so caudad; with 3 pairs of strong posterior marginal bristles and a similar bristle between posterior angular and midlateral bristles, disk with about 10 more bristles of which 4 are in a transverse row at the front of the distinct transverse sculpture at rear of notum and 3 on each side some distance back of those near anterior margin (these at times are approximately in a transverse row) and occasionally a single bristle in front of midlateral; rear of pronotum with a few strong anastomosing lines; wings almost uniformly smoky brown, forewing with the extreme base, a line in front of fore vein extending outwardly about to apex of anal lobe, and line of demarcation of anal lobe almost hyaline; hind wing with a median dark streak extending almost to apex; forewing with about 25, 18, and 14 bristles on costa and fore and hind veins, respectively, outer bristle of hind vein basad of next to last on fore vein; fringe hairs of hind margin of fore- wing arranged as in p/aumanni; fore and hind femora greatly swollen, the tooth at tip of fore tibia rather small, nipplelike; outer face of fore femur with 2 long bristles ventrad of median line, the first at sbout the middle, the other near base; also with many short bristles, some being in a row along dorsal surface, a row beneath this, and a row near ventral surface distad of the long bristle nearer base, as well as other scattered ones; fore tibia with 1 long bristle on outer side, distad of middle and well below dorsal margin. Abdomen with distinct, somewhat wavy, transverse, anastomosing lines (those on tergum X faint), of which one near base is much stronger; base of dorsolateral bristle on tergum X surrounded by a circular area about two and one-half times the diameter of point of insertion of other setae; bristles on lateral margins of terga II-VI very similarly arranged; on III, a pair on extreme lateral margin, one in front of and one back of the middle of the segment, between them but slightly more mesad the longest of the group and opposite the most caudad bristle and about 8 » removed a fourth bristle. Measurements (in microns, mostly from holotype): Head, length from front of eye 104, width across eyes 120, width just back of eyes 106, greatest width across cheeks 110; prothorax, median length 141, width anteriorly 129, greatest width 168, width including coxae 226; pterothorax, greatest width 204; wing, length 664, width at middle 36. Bristles, interocellar, 88, postocular 36, an- terior angular 25, posterior angular 70, midlateral 76, outer posterior marginal 22; lateral on mesoscutum 56; longest lateromarginal on tergum III 38; on middle of fore vein 40; on tergum IX, median 76, dorsolateral 188, lateral 200, ventrolateral 180; on tergum X, median 160, dorsolateral 172, lateral 160. Antennae: 1 2 3 + 5 6 7 8 Length, Rey Xe. See OY eI ie cS te Width, SO SO ma ne2Oe saliGy AiS “WIS: Male unknown. a 2 Visible portion only. 154 PROC. ENT. SOC. WASH., VOL. 43, NO. 7, OCT., 1942 Type locality—Nova Teutonia, Santa Catharine, Brazil. Type.—Catalog No. 56447, United States National Museum. Described from eight specimens taken on dead branches by Fritz Plaumann in 1941, one in May, two in June, and five in July (including holotype). A very distinct species, differing especially in the greatly elongated antennal segments and in the development of a second pair of long prothoracic bristles. 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The Corresponding Secretary and Treasurer should be addressed similarly. PROCEEDINGS OF THE ENTOMOLOGICAL SOCIETY OF WASHINGTON VOL. 44 NOVEMBER, 1942 No. 8 NOTES ON SOME WEST INDIAN FLATIDAE. By R. G. Fennau, Entomologist, Food-crop Pests Investigation, Windward and Leeward Islands. Stal described the genus Ormenis as having two more or less curved and regular rows of transverse venules towards the apex of the corium, distinct ocelli, and two spines before the apex on the posterior tibiae, and separated from it another genus Pefrusa as having only one postibial spine. In view of the inconstancy of the recorded points of difference the status of Petrusa has been held in doubt, and the single species of this genus has in recent years been provisionally treated as belonging to Orments. The writer has dealt with certain Lesser Antillean Flatids in an earlier paper (Proc. Ent. Soc. Wash. Vol. 43, No. 9), all of which were then referred to Orments (s. /.). On the basis of more extensive data he now considers that certain of these species, together with others described below, must be assigned to distinct genera. The genus Petrusa is quite distinct from Ormenis and is redefined below. Ormentis contaminata Uhler and its allies form a very compact genus, as also do Ormenis septempunctata Kennah and two new species described below. Among females of species falling under Ormenis and Petrusa there are two types of ovipositor. In one the lateral styles (3rd valvulae) are broad, strong, and beset with tooth-like processes directed inwards. In all cases so far observed females with this type of ovipositor insert the eggs to a greater or less extent in the substratum, which is normally the outer-most tissues of a leaf or soft stem. In the other type the lateral styles are very much reduced, being narrow, bluntly pointed or rounded at the apex, and entirely devoid of tooth-like processes. Species with this type of ovipositor do not insert the eggs, but lay them upon the substratum which may be as above or of a woody texture. The relative size of the anal segment of the female is ap- parently correlated with the quantity of waxy secretion which is deposited over or along with the eggs at the time of oviposi- tion, as chis substance is supported on the lower surface of the 156 PROC. ENT. SOC. WASH., VOL. 44, NO. 8, NOV., 1942 segment. The amount of secretion is not closely correlated with the type of ovipositor, and on present data appears to be fairly constant among the species of each genus. The colour of this secretion is usually white, but in a few cases is brown. The shape of the egg is variable and in its most elaborate forms offers a reliable means of distinguishing genera. The significance of some of the structures observed is very imper- fectly understood. The eggs of O, contaminata and its allies are thick-walled and possess a well-marked operculum. They are not covered with waxy filaments but are merely sprinkled thinly with short greyish spicules. By contrast the eggs of O. septempunctata are thin-walled, not operculate, and when laid are covered with a thick layer of white waxy filaments matted together. Instars of various species of the same genus have so far proved difficult to distinguish. Pigmentary differences are occasionally striking but are unreliable. As yet no careful search has been made by the writer for criteria by which genera can be distinguished in the immature stages but it is already clear that characters likely to be of value exist in the colour, shape and distribution of the various plates, flocculi or spicules formed by the epidermal secretion. In the generic definitions given below stress is laid on the above characters, though it is recognized that in practice most workers are likely to have access only to those provided by the anal segment and the ovipositor. The step is taken partly to justify the erection of new genera and partly to indicate a promising means of testing some of the questionable groupings which, for want of better, workers at present must provisionally accept. PETRUSA Stal. Genotype, Cicada marginata Brunnich, 1767, in Linné Syst. Nat.,i (2) p. 710, Stal, Hemipt. Fab. ii, p. 111. Frons at widest part as broad as long, or very slightly broader, median carina distinct on basal two-thirds, obsolete on apical third, lateral carinae obsolete or indicated at base, lateral margins carinate; no carinae on clypeus; vertex very short; width of head (with eyes) equal to width of thorax. Prono- tum with anterior margin convex, posterior margin concave; mesonotum without carinae or median cane indicated at apex. Hind tibia with one spine before apex. Tegmen 2.2 times longer than width at middle. Costal area about as wide as costal cell, granulate; Sc strong, simple to apex, R forking one-quarter from base, M forking about same level as R fork, Cu forking slightly basad of M fork. Base of R and M granulate. Nodal line parallel to apical margin of tegmen marked anteriorly by transverse veins and for most of length by an arcuate furrow. Apical line even and distinct. Anterior and posterior — angles smoothly rounded, apical margin shallowly rounded. Anal segment of male deflexed about 45 degrees in apical half, with lateral PROC. ENT. SOC. WASH., VOL. 44, NO. 8, NOV., 1942 157 margins produced downward into a point two-thirds from base; no median lobe ventrally. Genital styles with dorsal margin entire. Female anal seg- ment long, rather more than three times as long as lateral styles of Ovipositor. Lateral styles short, ovoid in side view, and devoid of tooth-like processes on posterior margin. Egg ovoid, approximately 2.2 times longer than wide, not operculate. Eggs not inserted, but laid in a low mound ovate in outline, densely covered with a felt of small white spicules. Epidermal secretion of instars white. Petrusina Melichar is a synonymy, having been erected to contain the dark form of the type species. Petrusa was erected to contain Cicada pygmaea Fabr. (1794, Ent. Syst. iv, p. 30), which is the pale form of the above. ANTILLORMENIS, n. gen. Genotype Ormenis contaminata Uhler, Proc. Zool. Soc. Lond., 1895, p. 71. Frons broader than long (about 1.4 to 1), median carina distinct on basal half, absent from apical half, lateral carinae indicated at base or absent, lateral margins Carinate; no carinae on clypeus; vertex very short; width of head, with eyes, equal to width of thorax. Pronotum with a shallow depression on each side of middle line; mesonotum without carinae, or with median carina indicated at base and apex, lateral carinae at base. Hind tibia with two spines before apex. Tegmen 2.4 times longer than width at middle, costal margin narrower than costal cell near base, twice as wide in middle; costal area granu- late, Sc strong, simple to apex, R forking about one-third from base of tegmen, M forking basad of R fork, Cu forking about level with M fork. Base of R and M granulate. Nodal line very feebly indicated by irregular cross-veins and an elongated depression along a curved line from node to apex of clavus; apical line fairly even and distinct. Clavus strongly granulate in basal two- thirds. Anal segment of male strongly and abruptly deflexed in apical half, with a median ridge or lobe towards base on ventral surface; genital styles deep with an excavation near apex on dorsal margin; process of style a rather blunt peg, often twisted at tip. Anal segment of female very short, bluntly rounded in dorsal view, less than twice as long as lateral styles of ovipositor. Lateral styles short, small, somewhat ovate in side view, devoid of tooth-like processes on margin. Egg rectangular, pyramidally pointed at one end, with thick walls, operculate. Eggs not inserted, but laid on substratum in two interlocked rows with pointed ends directed inward, one layer in depth, very lightly sprinkled with short greyish-white spicules. Epidermal secretion of instars white. This genus includes 4. albicostalis Fen., 4. palicoureae Fen., A. barbadensis Fen., A. sanctaliciensis Fen., A. grenadensis Fen., in addition to the genotype 4. contaminate Uhler. To it are added below the following new species: 4. flaviclavata, A. cachibonae and A, sancti-vincentt. 158 PROC. ENT. SOC. WASH., VOL. 44, NO. 8, NOV., 1942 Antillormensis flaviclavata, n. sp. Male. Length, 5.7 mm.; tegmen, 6.1 mm. Female. Length, 6.1 mm.; teg- men, 6.6 mm. Pronotum pale clouded yellow, mesonotum very pale, sometimes clouded fuscous, yellow-orange laterally; frons very pale, slightly darker along the line of the lateral carinae; clypeus, genae and antennae very pale yellow, eyes red, sometimes darker in anterior half. Fore and middle legs testaceous, hind legs paler. Abdominal tergites pale yellow, sometimes fuscous, sternites pale yellow or whitish, pregenital plate, female genitalia, anal segment of male and female pale fuscous, male genitalia dark. Tegmina pale tawny, smoky at apical margins, or sometimes beyond middle, with veins pale; a broad very dark band overlying C at its base and lying between Sc and R to apex. Veins distad of apical line fuscous. Wings very pale, veins concolorous, or somewhat smoky, veins fuscous. Insects in life powdered pale fawn. Anal segment of male with a short median ventral process; deflexed part of segment only slightly shorter than horizontal part. Aedeagus with a pair of dorsal apical spines half as long as aedeagus, and ventrally a pair of curved processes, short, and turned outwards in a minute hook at tip. Described from 65 males and 77 females collected by the writer near Goodwill Estate, Dominica, B. W. I. (May 9, 1941), on Coccoloba uvifera. Type material deposited in the United States National Museum. This species superficially resembles 4. cachibonae, A. albicostalis, A. sanctaliciensis, and A. barbadensis. \t is readily separated from all by the absence of a fuscous area on the basal half of the clavus (the darkest specimens have only a suggestion of this), and by the shape of the ventrolateral process of the aedeagus, which is closest to that of sanctaliciensis but not so marked twisted on its axis, while the hooked tip is smaller. It is further distinguished from sanctaliciensis by its pale clypeus, frons, pro- and mesonotum. Antillormenis cachibonae, n. sp. Male. Length, 5.6 mm.; tegmen, 6.3 mm. Female. Length, 5.8 mm.; teg- men, 6.7 mm. Pronotum pale fuscous, mesonotum fuscous darker basally and laterally with a paler line on each side of middle; frons pale yellow, slightly clouded with fuscous; clypeus pale, a dark curved line near each side, genae pale yellow, antennae light fuscous, eyes red. Legs pale testaceous, apex of hind femur and base of hind tibia, darker; abdominal tergites and genitalia fuscous, sternites slightly paler. Tegmina pale yellow, darkening into fuscous distad of middle; costal area pale, a very dark fuscous band overlying costal at base and lying between Sc and R to apex, clavus fuscous basally. Wings smoky, veins dark. Insect in life powdered fawn. Anal segment of male with median ventral process, slightly recurved, de flexed part of segment nearly as long as horizontal. Aedeagus with a pair of PROC. ENT. SOC. WASH., VOL. 44, NO. 8, NOV., 1942 159 spines dorsally at apex directed anteriorly for nearly two-thirds length of aedeagus, and ventrally with a pair of stouter processes curving anteriorly and upwards, somewhat angularly curved outwards when viewed from ventral aspect. Described from 12 males and 9 females collected near the mouth of the Melville Hall or Cachibona River, Dominica, B. W.1., by the writer (June 18, 1941) on Coccoloba uvifera. Type material deposited in the U. S. N. M. This species is close to 4. albicostalis, but differs in having the tegmina usually pale, not dark. The ventral processes of the aedeagus of cachibonae when viewed from the ventral aspect are rather angularly curved, while in a/bicostalis they are smoothly curved. The posterior margin of the plate lying between these processes is sinuate in a/bicostalis, saw-toothed 1n cachibonae. The basad side of the excavation near the apex of the dorsal margin of the male genital style is straight in cachibonae, while in albicostalis it forms a curve steepening as it descends. In the female the notch in the pregenital plate is wider than in cachibonae, and the distal margin of the plate is much less sinuate. Antillormenis sancti-vincenti, n. sp. Male. Length, 6.5 mm.; tegmen, 7.2 mm. Female. Length, 6.8 mm.; teg- men, 7.8 mm. Dark form: pronotum tawny, margined narrowly with fuscous; mesonotum ferruginous, a dark spot laterally, basal margin and scutellum very dark; frons tawny, darker near lateral margins; clypeus tawny, a pale band on each side of middle line; genae and antennae pale, eyes very pale grey. Legs fuscous yellow, abdominal tergites and sternites fuscous, paler laterally; female geni- talia fuscous yellow, male genitalia dark. Tegmina tawny ferruginous, base of costa, middle of Sc, and apical part of R clouded fuscous, the tegmen dark fuscous distad of a line between apex of costal area and middle of claval suture, nodal line transparent in middle; clavus fuscous. Sometimes the whole teg- men is dark fuscous except for the ferruginous costal area (including a small area behind its tip) and a quadrangular area just basad of middle of tegmen. Wings smoky, veins dark. Insect in life powdered a leaden hue. Pale forms: insect wholly pale yellow except for the eyes, which are purple, and the membrane of the tegmen distad of the apical line, which is dark fuscous. Insect in life powdered whitish. Anal segment of male with a large median ventral process, over half as long as deflexed apical part of segment, and with a median lobe on its basal side; apical part scoop-shaped. Deflexed apical part of segment slightly shorter than horizontal part. Aedeagus with a pair of slender processes on dorsal margin directed anteriorly for two-thirds of its length; ventrally a pair of hook- like processes sweeping anteriorly outwards and upwards and then curving posteriorly. Ventral distad margin of periandrium shallowly excavated, pointed at each side. 160 PROC. ENT. SOC. WASH., VOL. 44, NO. 8, NOV., 1942 Described from 26 males and 31 females collected by the writer in St. Vincent, B. W. I., in the following localities— Morne Garu, at 1,500 ft. (Aug. 20, 1941), Three Rivers, be- tween 300 and 2,000 ft. (Sept. 3, 1941), and Mt. St. Andrews, at 2,000 ft. (Sept. 12, 1941). The insects were taken in forest on Heliconia bihai, banana, Inga laurina, cacao, mango, and Tabernaemontana sp. Type material deposited in U.S. N. M. This species superficially is not unlike 4. contaminate Uhler, which also occurs in St. Vincent. It differs in detail, however, being larger, and having the dark areas of the tegmen sharply defined; other differences include the shape of the ventral process of the male anal segment, that of the ventral aedeagal process, of the apical border of the periandrium, and of the apical process of the genital styles. In the female the notch in the posterior margin of the pregenital plate is broader and more shallow than that of 4. contaminata. A. santi-vincenti is a forest dweller and has not been taken in the coastal area, while 4. contaminata, though found on the outskirts of rain forest (usually on Cordia sp.), occurs typically in the drier Zones. ILESIA, n. gen. Genotype Ormenis septempunctata Fennah, Proc. Ent. Soc. Wash., 43, No. 9, p* 196. Frons broader than long (1.4 or 1.5 to 1), median carina distinct on basal two-thirds, absent from apical third, though sometimes indicated at apex, lateral carinae scarcely indicated at base, otherwise absent, lateral margins carinate; no carinae on clypeus; vertex very short; width of head, with eyes, equal to width of thorax. Pronotum with a slight depression anteriorly on each side of middle line; mesonotum without carinae, or median carina slightly indicated at apex, lateral carinae at base. Hind tibia with two spines before apex. Tegmen 2.5 times longer than width at middle, costal margin as wide as costal cell near base, twice as wide in middle; costal area granulate, Sc simple to apex, R forking about one-third from base of tegmen, M forking about same level, Cu forking slightly basad of former two, base of R and M granulate. Nodal line fairly distinct, marked anteriorly by irregular cross- veins, posteriorly by an elongated depression from near node to apex of clavus; apical line fairly even and distinct. Anterior apical angle of tegmen smoothly rounded, slightly acute, posterior angle more abruptly rounded and slightly obtuse; apical margin obliquely truncate, slightly rounded. Anal segment of male not strongly and abruptly deflexed in apical half, and devoid of ventral ridge or process. Genital styles with dorsal margin entire, apical process in form of an inwardly curved plate with a broadly sinuate margin ending basad in a short point directed outward, distad in a broad point directed posteriorly. Anal segment of female very long, about three times as long as lateral styles of ovipositor. Lateral styles small, fusiform in side view, devoid of tooth-like apical processes. Egg ovoid, approximately 2.5 times as long as broad, not operculate. Eggs not inserted, but laid in a PROC. ENT. SOC. WASH., VOL. 44, NO. 8, NOV., 1942 161 low mound ovate in outline, densely covered with a matted layer of small white spicules. Epidermal secretion of instars white. Ilesia anguillana, n. sp. Male. Length, 4.0 mm.; tegmen, 4.8 mm. Female. Length, 5.2 mm.; teg- men, 5.6 mm. Pronotum testaceous, fuscous basally; mesonotum ferruginous with two or three fuscous spots on basal margin on each side of middle line; frons, clypeus, and genae testaceous, antennae pale with black sensory pits, eyes orange, with a black spot bordered white antero-dorsally. Legs testaceous; abdominal tergites, anal segment and male genitalia fuscous, sternites, pygofer, and female genitalia paler. Tegmina testaceous, costal area and apical half of tegmen fuscous, veins pale, clavus sometimes fuscous. A fuscous elongated spot at base of costal vein, a small spot near junction of R and M, a large trapezoidal spot just distad of Cu fork, a small spot on clavus at apex. Wings smoky, veins dark. Insect in life powdered pale brown. Anal segment of male devoid of ventral process; deflexed part of segment one-third length of horizontal part. Aedeagus with a pair of complex processes laterally, each consisting of a thin spine curved posteriorly, then upwards, anteriorly and outwards; attached to this a bifurcate spine below, directed anteriorly, the longer arm being half as long as aedeagus, the shorter one-fifth the length of the longer; a pair of minute blunt processes ventrally one-quarter from base of aedeagus. Anal segment of female 1.1 mm. long. Described from 5 males and 6 females collected in Anguilla, B. W. I., by F. S. Delisle, Esq. (April 23, 1941) on Coccoloba uvifera. ‘Type material deposited in the U. S. N. M. This species is allied to J. septempunctata, but differs in the male genitalia and in the pattern of spots on the tegmen. A long series of this species has more recently been taken by the writer in Nevis, B. W. I. (Jan. 14-20, 1942). Ilesia benevolens, n. sp. Male. Length, 5.6 mm.; tegmen, 6.0 mm. Female. Length, 5.9 mm.; teg- men, 6.4 mm. Pronotum pale testaceous; mesonotum somewhat ferruginous, a pair of fuscous spots basally on each side of middle line, the outer large and triangular, the inner small and round. Frons, clypeus, and genae light yellow or yellowish- brown, antennae somewhat paler, eyes orange-red, a black spot bordered white antero-dorsally. Legs pale yellow to yellowish-brown. Abdominal tergites, male genitalia, and female anal segment fuscous, sternites and female genitalia very pale, but sometimes dull mottled brown bordered with orange. Tegimina dull stramineous, sometimes fuscous. Costal area fuscous at base, pale apically, basal half of tegmen usually pale, distal half fuscous, slightly paler beyond apical line, junction of R and M thinly clouded with fuscous, a small dark spot basad of this junction, a larger trapezoidal spot on Cu pos- terior to R and M junction, a still larger round spot on Cu posterior to M fork, 162 PROC. ENT. SOC. WASH., VOL. 44, NO. 8, NOV., 1942 a small spot on clavus at apex, clavus fuscous basally posterior to anal vein. Wings, smoky, veins dark. Insect in life powdered pale fawn. Anal segment of male devoid of ventral processes; deflexed part of segment only one-quarter of length of horizontal part. Aedeagus with a pair of spines just basad of apex directed ventrally and posteriorly; arising at the same level a pair of shallowly curved slender spines directed anteriorly below aedeagus for three-quarters of its length; a small process laterally, directed outwards. Anal segment of female long (1.5 mm.). Described from 35 males and 48 females collected by the writer near Goodwill Estate, Dominica, B. W. I. (May 9, 1941), on Coccoloba uvifera. Type material deposited in U. S. N.M. This species differs from J. septempunctata in the shape of the spots on the tegmina, in the mode of forking of the veins distad of the apical line, and in having longer tegmina. The female has a longer telson on the anal segment, a narrower sclerotised strip behind the anal opening, ‘longer genital styles, and a differently shaped apical margin on the pregenital plate. The male differs from that of septempunctata in the shape of the anal segment, in the direction in which the shorter aedeagal spine projects, and in the shape of the long shallowly curved aedeagal process. The writer assigns to this species a male and a female collected by him in St. Lucia, B. W. I. (March 21 and April 28, 1941), on Tabernaemontana sp. The notcheim the pregenital plate of the female is a little wider than in the Dominican material, but otherwise the specimens agree per- fectly. ORMENIS Stal. 1862 Stl, Bidrag till Rio Janeiro-Traktens Hemipter-Fauna, II, p. 68. Ormenis jamaicensis, n. sp. Male. Length, 5.2 mm.; tegmen, 6.3 mm. Female. Length, 6.2 mm.; teg- men, 7.2 mm. Frons broader than long (1.3 to 1), median carina distinct on basal two- thirds, absent from apical third, lateral carinae indicated at base, lateral margins Carinate; no carinae on clypeus. Vertex short; width of head (with eyes) equal to width of thorax; pronotum smooth, a shallow depression on each side anteriorly; mesonotum with median carina scarcely indicated at base and apex, lateral carinae at base. Hind tibia with two spines before apex. Costal area slightly granulate, Sc strong, simple to apex, R forking less than one-third from base of tegmen, M forking slightly basad of R fork, Cu forking about level with M fork. Base of R and M granulate. Nodal line parallel to apical margin, scarcely indicated by a series of cross-veins more or less in line from node to near apex of clavus; apical line somewhat uneven but distinct; one or two rows of small irregular cells between the apical line and the even apical cells. Apical margin of tegmen straight, joining posterior margin in a clean- cut right angle. Basal two-thirds of clavus strongly granulate. PROC. ENT. SOC. WASH., VOL. 44, NO. 8, NOV., 1942 163 Head, thorax, legs, abdomen and tegmina uniformly pale green, parts of genitalia fuscous. Eyes purple. Wings transparent, veins stramineous. In- sect in life powdered greenish white. Anal segment of male with deflexed apical part nearly twice as long as horizontal part. Arising from the ventral middle line below the anal style, and deepening anteriorly, a vertical plate, terminated by a transparent, flat, subquadrangular lobe directed posteriorly. Aedeagus with a pair of short, stout spines apically on dorsal border; posterior to these a pair of thin filaments, somewhat angularly curved in side view, arising from side of periandrium and directed upwards to same height as dorsal spines. A pair of long processes ventro-laterally, each arising at the base of the thin periandrial filaments and directed anteriorly below the aedeagus for two-thirds of its length. Ventral border of periandrium (a keel-like plate) terminating posteriorly in a point. Genital styles with an elevation on dorsal border near apex, posterior to this a slight excavation; apical process a rather thin spine, smoothly curved back- ward, then upward and slightly forward. Anal segment of female short, bluntly rounded, genital styles large and stout, toothed along posterior margin; ovipositor short. Egg narrowly oval, a long narrow operculum near one pole, in side view slightly pointed at one end, shell rather thick. Described from 18 males and 22 females collected by the writer near Hope Gardens, Jamaica (Nov. 1-3, 1940), on Lantana sp., and “Jasmine.” Type material in U. S. N. M., paratypes in British Museum. Writing of two specimens which were submitted to him for examination, Mr. W. E. China has indicated that they are close to Ormenis herbida WIk., but differ in structural details of the aedeagus and of the anal tube. This species, according to Melichar’s key, would fall under the oriental genus Geisha Kirk., but differs from it in the structure of the head and in the type of the genitalia. It is here provisionally placed in Orments sens. lat. as it does not appear to be congeneric with any of the more recent sub- divisions of this old genus. Ormenis perpusillus Walker. Poeciloptera perpusilla Walk. List of Homopt., I, p. 467, 61 (1851). The following are the principal characters of this species. Tegmen with apical areoles evenly spaced, apical line even and distinct; subapical areoles evenly developed, but bounded irregularly at base, the nodal line being obscure. Hind tibia with two spines before apex. Head, thorax, abdomen, legs and tegmina uniformly pale green, wings transparent, genitalia greenish-brown. Insect in life powdered greenish-white. Anal segment of male with apex scarcely deflexed. Aedeagus with two pairs of thin spinose processes on dorsal border at apex, directed anteriorly. The anterior pair extends forward for two-thirds the length of the aedeagus, while the posterior pair is about one-third the length of the anterior. Laterally a 164 PROC. ENT. SOC. WASH., VOL. 43, NO. 8, NOV., 1942 pair of processes on each side, the basal process thin, blade-like, rounded at apex, directed downward and forward; distal process thicker, sickle-shaped, terminating in a point, directed downward and forward. Genital styles with upper and lower borders parallel, apical process on dorsal border a vertical narrow lamina twisted inwards; posterior margin of style almost semicircular in side view. Anal segment of female slightly longer than lateral styles, rather narrow. Lateral styles stout, tapering slightly toward apex; posterior margin with four strong tooth-like processes. Ovipositor relatively long, directed backward and upward. The material in the writer’s collection consists of one male and one female and two specimens with abdomen missing, collected in Jamaica, B. W. 1., by A. H. Ritchie (May 23-26, 1917) on coffee. The figure of the male genitalia has been redrawn from a drawing submitted to Mr. W. E. China, and kindly compared by him with the dissected genitalia of the British Museum type. Melichar includes Venezuela, Bogota, Guadeloupe and Martinique in the distribution of this species, but it is most probable that the insect is confined to Jamaica. EXPLANATION OF PLATES. Plate 15. . anguillana, male genitalia. . anguillana, egg. . anguillana, female genitalia. . benevolens, male genitalia. . benevolens, dorsal outline of male anal segment. . Septempunctata, dorsal outline of male anal segment (for comparison). . anguillana, median notch on posterior margin of female pregenital sternite. 8. I. septempunctata, median notch on posterior margin of female pregenital sternite (for comparison). 9. I. benevolens, median notch on posterior margin of female pregenital sternite (for comparison). 10. I. benevolens, telson and ante-anal sclerite of female anal segment. 11. I. septempunctate, telson and ante-anal sclerite of female anal segment (for comparison). A. cachibonae, male genitalia. 13. A. cachibonae, ventral view of hooks and posterior margin of periandrium. 14. 4. albicostalis, ventral view of hooks and posterior margin of periandrium (for comparison). SN BIR) ie NAN RN ON 13. 4. albicostalis, ventral view of hooks and posterior margin of periandrium (for comparison). 15. A. cachibonae, one of paired apical processes of periandrium. 16. A. albicostalis, one of paired apical processes of periandrium (for com- parison). PROC. ENT. SOC. WASH., VOL. 44, NO. 8, NOV., 1942 165 17. A. albicostalis, basad side of subapical excavation on dorsal border of male genital style (for comparison). 18. 4. cachibonae, basad side of subapical excavation on dorsal border of male genital style, (for comparison). 19. A. cachibonea, female genitalia. Egg of 4. cachibonea, A. flaviclavata, and A. sancti-vincenti. 20. 21s 9). 23: 24. Phy. 26. PAT 28. 29, 30. Sil Zak A. SN BA A A A RRR rm! nO! . Diagram showing relationship of the species of J/esia. . O. jamaicensis, male genitalia. . O. jamaicensis, posterior margin of periandrium. . O. jamaicensis, female genitalia. . O. jamaicensis, egg, (a) front view, (b) side view. a SS flaviclavata, one of paired apical processes of periandrium. sanctaliciensis, one of paired apical processes of periandrium (for com- parison). . sancti-vincenti, female genitalia. . flaviclavata, male genitalia. . flaviclavata, ventral view of hooks and posterior margin of periandrium. sanctaliciensis, ventral view of hooks and posterior margin of periandrium (for comparison). sanctaliciensis, apical process of male genital style for comparison with 24. . flaviclavata, female genitalia. sancti-vincenti, male genitalia. contaminata, ventral view of posterior margin of periandrium (for comparison). . sancti-vincenti, ventral view of posterior margin of periandrium (for comparison). Plate 16. . albicostalis (a) side view of female pregenital sternite; (b) median notch on posterior margin of female pregenital sternite. sanctaliciensis (a), (b) as preceding. cachibonae (a), (b) as preceding. flaviclavata (a), (b) as preceding. grenadensis (a), (b) as preceding. contaminata (a), (b) as preceding. palicoureae (a), (b) as preceding. sancti-vincenti (a), (b) as preceding. barbadensis (a), (b) as preceding. perpusillus, male genitalia. perpusillus, female genitalia. PROC. ENT. SOC. WASH., VOL, 44 PLATE 15 [166] PLATE 16 PROC. ENT. SOC. WASH., VOL. 44 [ 167] 168 PROC. ENT. SOC. WASH., VOL. 44, NO. 8, NOV., 1942 DESCRIPTION OF A NEW SPECIES OF GONIOZUS FROM OREGON (HYMENOPTERA : BETHYLIDAE). By Rosert M. Fouts, U. S. Department of Agriculture, Bureau of Entomology and Plant Quarantine. During the course of investigations on insects affecting filberts in the western part of the United States several speci- mens of a new species of Goniozus were reared from the galls of Cynips maculipennis Gillette on oak. Preparation of a paper on the parasites of Melissopus latiferreanus (Wlsm.), among which this species is considered, makes it desirable that a name be assigned to it. Goniozus gallicola, new species. Female.—Length 3.3 mm. Head as wide as the thorax, one and one-fourth times as long as wide, truncated behind, the lateral angles rounded, moderately pubescent as are also the thorax and abdomen; eyes as long as the head behind them; clypeus with a sharp keel which extends back on the frons nearly as far as the eye; frons, pronotum, mesonotum, and scutellum with strong impressed reticulation, sparsely covered with shallow setigerous punctures several times their diameters distant from one another; genae similarly sculptured below and along the eyes, polished and impunctate medially and above; interocellar area closely and finely impressed reticulate; occiput finely reticulate; scape about twice as long as wide, flattened, much wider than any of the flagellar joints; pedicel 11% times as long as thick, a little thicker and longer than the third joint; following joints gradually thickening to middle of antennae and then just as gradually diminishing in thickness to tip, all of them distinctly, but only slightly (except the last one), longer than thick; last joint a little over twice as long as thick, pointed at tip; thorax 1.7 times as long as wide; scutellum very slightly convex, with several large shallow punctures laterally; propodeum smoothly convex above, the superior face without sculpture medially, with a distinct but inconspicuous dorso-lateral ridge on each side from base to apex; except for the broad median polished area the superior face is reticulate, the fine raised lines having a lateral trend; the lateral face of the propodeum is irregularly reticulate, the lines having a longitudinal trend; inferior face of propodeum irregularly reticulate, the areas large; branch of basal vein straight, about as long as the upper abscissa of the basal vein; radius curved sharply upward at apex, distant by about its own length from the apex of the wing; abdomen 1.3 times as long as the thorax, depressed, sharply pointed at apex; black; tip of scape and basal half of flagellum bright yellowish-brown to reddish- brown; rest of antennae dark brown; tarsi and tips of tibiae brownish; venation very dark brown, the median, basal, and radial veins paler. Type locality —Dundee, Oreg. Other locality —Eugene, Oreg. Type.—Cat. No. 56364, United States National Museum. Six female specimens reared from galls of Cynips maculipennts PROC. ENT. SOC. WASH., VOL. 44, NO. 8, NOV., 1942 169 Gillette collected by S. M. Dohanian from leaves of Quercus garryana. The Dundee material was collected on August 14, 1940, and three dead specimens of G. ga/llicola were found in the retaining jars under the galls on May 9, 1941. The Eugene galls were collected on August 14, 1941, and three specimens of G. gallicola emerged from them on August 26 and 28 of the same year. It seems probable, although positive evidence is lacking, that the wasps are parasitic on Me/issopus latiferreanus (Wlsm.). All the galls from Dundee were broken open as soon as the specimens of the parasite were discovered and found to be heavily infested by Me/issopus and by nothing else. This species differs from /onginervis Fouts in having the eyes about as long as the head behind (above) them and from clarimontis Kieffer in having all antennal joints longer than thick. A REVISION OF THE GENUS TWININGIA IN AMERICA NORTH OF MEXICO (HOMOPTERA-CICADELLIDAE). By R. H. Beamer.! The genus Twiningia was erected by E. D. Ball (Bul. Brook. Ent. Soc. p. 93, 1931), to include a group of species formerly described in Scaphoideus. Scaphoideus blandus Ball was designated type. This paper treats ten old species and describes nine new ones. Ball’s characterization of the genus is as follows: ‘“‘Resem- bling Mesamia but with a flat, acutely angled vertex, a narrow face as in Scaphoideus and long narrow elytra with the margins straight to the eyes. Pronotum slightly convex but little above the level of the vertex, slightly wider than the eyes but narrower than the closed elytra. Elytra long and narrow with the outer anteapical cell usually divided, the second cross nervure usually present but sometimes obscure. Venation similar to Mesamia but with less reticulations and numerous cross nervures to costa at right angles as in Platymetopius (sensu strictu). Genitalia of one general pattern: the female segment very broad at base, the lateral margin narrowed on posterior half, the posterior margin roundingly produced on the median half with a variable median notch. Male plates long triangular. Color usually tawny or smoky. Face much nar- rower than in Mesamia resembling Scaphoideus.” The females can be divided into two groups of species by the form of the last ventral segment, one having the posterior 1 Contribution from the Department of Entomology, University of Kansas. 170 PROC. ENT. SOC. WASH., VOL. 44, NO. 8, NOV., 1942 margin with a median notch (T. b/anda and related species) and the other having this segment with a strap-like median process (T. scrupulosa and others). This might seem to sug- gest a generic distinction but external appearances and male genitalia characters will not bear this out. The genus is western in distribution, occurring in the moun- tainous regions west of the great plains, The type species T. blanda, as well as fumida and albacosta occurs on Juniper. T. bicolor is swept from Adenostoma sparsifolium Varr., T. tricolor from Arctostaphylos pungens H. B. K., and T. solitaria from Yucca brevifolia Engelm. Other species have been taken from Oak, Madrono, and various species of Manzanita. The genitalia, while characteristic for the genus and helpful in defining some of the species, are so much alike in others as to be of little value in specific separation. Scaphoideus catalinus Ball, placed in this genus by some authors, belongs in the genus Scaphytopius Ball. Types of the new species are in the Snow Collection, Uni- versity of Kansas. Key To Species oF [TWININGIA. 1. Females with median strap-like projection on last ventral segment; elytra with cross-bands or ramose pigment lines. 2 Females without such a projection; color more or less solid, some- times with numerousilighter areolese: =. sees an tesa ee 7 2. Dorsum with three color cross-bands, white, brown, yellow_tricolor (1) Dorsum without three color cross-bands.-= toes 3 3. Dorsum with light cross-band back of scutellum___._-.--------------2---------------- 4 Dorsum without light cross-band back of scutellum_._..------------- 6 4. Light cross-band narrow and quite definite; pygofer hook more than half as long as apex of pygofer.._..-...---------------2---------2 fasciata (2) Light band broader, more or less indefinite due to dark veins in Ser Dise of vertex, usttall'y. boi ta: se eee cress eee eae eee permista (3) Disc of vertex with not more than transverse brown spot.scrupulosa (4) 6. Disc of elytra usually with rather small brown spot in contrast to general gray color__.........- See hos Mes bt WL. Sa ae reducta (5) Disc of elytra with large brown saddle-shaped area... pulla (6) 7. Most of dorsum dark, vertex and costal margin light_..__.__..bicolor (7) Mostiofidorsam: not catkess es een ree a8 8. Dorsum dark reddish brown, apices of elytra white... __----------------------- 9 Dorsum lishter-or apices notlight =. 10 Gentine cos talennatesttraels ont eee eae Labs albacosta (8) Base of costa light remainder to apex dark........................fumida (9) 10. General coloring mottled (to unaided eye); pygofer hooks heavy, itis ee a iit leet ee eed ee ee Se ere ila! PROC. ENT. SOC. WASH., VOL. 44, NO. 8, Nov., 1942 171 11. General appearance smoky gray; aedeagal shaft very long and tapering... ee yrandisa (lo) General appearance eases Me deawan Se petty eNareer, in dorsal view sides almost parallel, slightly widened at apex. ma/lvastra (11) 12. Vertex with apex distinctly less than a right angle, usually slightly longer at middle than width between eyes, often with red longi- GuGlinall stripe sie a eee eee eee a pellucida (12) Vertex with apex forming a right eet or ane iden between eyes thanlengtnnat middle? =) 2s Slavik STS Pe) 3 13 13. Vertex margins usually, lined with darker color... 14 Vertex not lined with darker on margins... acuta (13) 14. Dark brown in color, elytra with numerous areoles....... areolata (14) Lighter in color, elytra with few or normal number of areoles_........- 15 Sar Almost without areoles inely thay. -.22 2.8 17 WWithmatamest onevateole tovaycell © we ee 16 165 Elytra with, vermiculate lines or spots: 2. solitaria (15) Elytra without vermiculate lines or spots... blanda (16) 17. Dark colored, reddish brown, elytra with normal number of cells for genust oc. 00 ee a te eee ee ae Ree Oh en a, Seven: RIND 18 Light colored; heavily Podentete SE a a OES reticulata (17) 18. Smaller, usually not over 4.5 mm. in length... rubrafusca (18) lEarger usually, 5.5) mim-,otaim Ofeee ss 2 a ene magnata (19) Twiningia tricolor Beamer. Twiningia tricolor Beamer, R. H., Jour. Kans. Ent. Soc., p. 27, 1939. This beautiful three colored species is the most striking and easily separable in the genus. The cross-banding, light on head, dark on pronotum and bases of elytra, then broad yellow band over most of elytra with dark apices, makes its identification simple. Numerous specimens at hand collected from Arctostaphylos pungens H. B. K Twiningia fasciata, n. sp. Resembling T. scrupulosa (Ball), but anterior white cross-band of elytra narrow and definite and pygofer hook two-thirds as long as width of pygofer. Length 5—5.5 mm. Vertex flat; margins straight; apex sharp about a right angle, about one- fifth wider between eyes than length at middle. Color: Creamy white with brown markings. Vertex almost solid brown with median spots; margin usually lined with brown; pronotum flecked with brown; scutellum with basal angles darker; elytra dark brown made up of spots and vermiculate markings except narrow white cross-band just back of apex of scutellum and a semblance of two other light cross-bands, one near costal plaque and the other in region of cross-veins. Female is creamy on vertex, face and abdomen, darker on thorax and pygofer; in male face and abdomen lemon yellow, in male dark on thorax and genital sclerites. 172 PROC. ENT. SOC. WASH., VOL. 44, NO. 8, NOV., 1942 Genitalia: Last ventral segment of female slightly longer than preceding, posterior margin roundingly bilobed, cut in middle more than half way to base, from this cut projects a strap as long as segment and notched at apex. Male pygofer more or less rectangular, apex rounded, hook straight about two- thirds as long as width of pygofer; aedeagus about one-third as wide at base as length, slightly curved dorsally with pair of processes arising ventrally at base of shaft, separating from it about mid-way of shaft, tapering to slender apices, more than twice as long as shaft. Holotype male, Rochester, Wash., July 22, 1931, R. H. Beamer. Allotype female, Kalama, Wash., July 4, 1931, R. H. Beamer, and following paratypes: 3 females, Grants Pass, Ore., July 12, 1935; 1 male, 2 females, Canyonville, Ore., July 12, 1935; 1 male and 1 female, Klamath Falls, Ore., July 4, 1935; 2 females, Kerby, Ore:, July 15, 1935; (male Underwood, Wash., July 9, 1935; 2 males and 1 female, Mt. Hood, Ore., July 3, 1935; 2 males and 1 male, DuPont, Wash., July 5, 1935; 2 males and 1 female, Kalama, Wash., July 4, 1935; 2 males, Siskiyou, N. F., Calif., July 14, 1935; 1 male, Lucerne, Calif., July 17, 1935; 1 female, Lockwood, Calif.; 1 female, Santa Rosa, Calif., Aug. 16, 1938, R. H. Beamer; 1 male and 1 female, Occidental, Calif., Aug. 16, 1938, L. W. Hepner; 1 female, same data, R. I. Sailer; 1 male and 2 females, Santa Rosa, Calif., Aug. 16, 1938, R. I. Sailer; 1 male and 2 females, same data, L. W. Hepner. Twiningia permista, n. sp. Resembling T. fasciata, but light band back of scutellum broader and less definite; pygofer hook very small, median strap of last ventral segment of female barely surpassing posterior margin. Length 5—5.5 mm. Vertex flat; margins straight meeting at slightly less than right angle. Color: Smoky; vertex usually fairly uniformly buff colored; margins lighter, lined with darker; pronotum mottled; scutellum with basal angles usually darker; elytra fairly evenly embrowned with ramose pigment lines and spots, a semblance of a lighter cross-band behind scutellum, tips darker; vertex with face and abdomen creamy white to bright yellow; thorax and genital segments dark. Genitalia: Last ventral segment of female about twice as long as pre- ceding segment; posterior margin with broadly rounded lobe either side of strap-like appendage which reaches barely beyond margin of segment, apex of strap with small notch. Male pygofer more or less triangular with very small hook on ventral outer point; aedeagus broad, curving dorsally with lateral processes about twice as long as shaft. Holotype male and allotype female, and one female para- type, Boulevard, Calif., July 26, 1938, R. H. Beamer; other PROC. ENT. SOC. WASH., VOL. 44, NO. 8, NOV., 1942 173 paratypes, 2 males and 2 females, Mt. Springs, Calif., July 25, 1938, and mn female, Mint Canyon, Calin a july 7; 1933, Reset: Beamer. Twiningia scrupulosa (Ball). Scaphoideus scrupulosa Ball, E. D., Can. Ent. XXXIV, p. 14, 1902. Resembling other species of this group, but with the largest light cross- band and without a hook on the male pygofer. Vertex flat, very slightly excavated; lateral margins straight, meeting at slightly less than a right angle. Color: Creamy white marked with brown; vertex usually light with thin brown line along margins, and at least an indication of a pair of transverse spots on disc; elytra brown with rather broad indefinite light band back of scutellum and other light areas in region of plague and cross-veins. Veins usually darker. Genitalia: Last ventral segment of female a little more than twice as long as preceding segment; lateral margins deeply excavated at outer corners; posterior margin sharply excised either side of a broad median strap-like appendage, extending half its length beyond margin and with very small notch in apex. Male pygofer almost rectangular, hook reduced to a very small knob on ventral outer corner; aedeagus slightly enlarged at bas2 curved dorsally with lateral processes scarcely as lonz again as shaft. Numerous specimens at hand from southern third of Calif., many of them swept from Arctostaphylos pungens H. B. K. Twiningia reducta Ball. Scaphoideus scrupulosus reductus Ball, E. D. Can. Ent., p. 84, 1909. Resembling T. scrupulosa, but without light cross-bands and usually with a more or less rectangular spot on disc of elytra composed of brown dots. Vertex slightly excavated; margins straight, meeting at slightly less than a right angle. Color: Cinereous with dark brown markings; vertex creamy, margins with thin brown line, disc with large pair of transverse brown, almost black, spots; pronotum and scutellum mottled; elytra cinereous, veins darker, semblance of brown saddle mark near middle of clavus, appearing to unaided eye as a brown spot on disc of elytra. Genitalia: Last ventral segment of female about twice as long as preceding segment, lateral angles deeply excavated on outer corner, posterior margin slightly produced, sharply excised almost half length of segment either side a median strap-like appendage extending half its length beyond segment, usually not notched at apex. Male pygofer more or less rectangular, rounded on outer margin with medium long, slender hook on ventral outer portion; aedeagus slightly enlarged at base, curved dorsally, lateral processes about twice as long as shaft. Specimens at hand from northern California. 174 PROC. ENT. SOC. WASH., VOL. 44, NO. 8, NOV., 1942 Twiningia pulla, n. sp. Resembling 7. reducta (Ball), but more evenly dark brown rather than cinereous and without the rectangular brown spot on disc of corium. Length 4-5.5 mm. Vertex flat; lateral margins very slightly curved out, meeting at slightly more than aright angle, just barely wider between eyes than length at middle. Color: Cinereous heavily marked with dark brown; vertex with margins white, thinly lined with brown, pair of small spots at apex either side of median line, a larger transverse spot on disc, a small pair at anterior corner of each eye, and an indication of a larger basal pair, brown; pronotum mottled with brown, scutellum with basal angles darker; elytra quite heavily irrorate with brown with a few lighter areoles, apices almost black; venter yellow except thorax and genital segments darker. Genitalia: Last ventral segment of female almost three times as long as preceding segment, lateral margins sharply excavated on outer corners, pos- terior margin sharply incised one-third depth of segment either side a broad bifid strap appendage projecting about one-third length of segment beyond margin. Male pygofer bluntly triangular with short sharp hook on ventral outer point; aedeagus bulbous at base, curving dorsally with lateral processes about twice length of shaft; styles with apices slightly enlarged, truncate at tips Holotype male, allotype female, and 1 male and 3 female paratypes, Lompoc, Calif., Aug. 9, 1938, R. H. Beamer. Twiningia bicolor (Ball). Scaphoideus bicolor Ball, E. D., Ent. News, pp. 166, 1909. Form of T. blanda; very dark brown in color, almost black with head and costal margins of elytra lemon yellow. Easily distinguished from all other species by this color. Genitalia: Last ventral segment of female more than twice as long as pre- ceding; deeply excavated on lateral margins; posterior margin with middle third extended with sharp notch in middle either side of which is a short, sharp tooth. Male pygofer almost rectangular with long, slender hook on outer ventral corner, often longer than pygofer width. Aedeagus with base rec- tangular, very large and heavy; shaft short, curved dorsally with pair of short lateral processes near base of shaft, not more than one-third as long as shaft. The genitalia of this species would seem to indicate a very close relationship with Mesamia. Numerous specimens at hand swept from Adenostema spar- sifolium Tarr. Twiningia albacosta, n. sp. Resembling T. fumida, but with the costal border of elytra white through- out. Length 44.5 mm. Vertex flat, slightly concave, margins slightly curved meeting at a little more than right angle, barely wider between eyes than length at middle. PROC. ENT. SOC. WASH., VOL. 44, NO. 8, NOV., 1942 175 Color: Reddish brown except margins of vertex, pronotum, costal margin, apex of elytra, and usually most of scutellum creamy white. Venter strami- neous, ovipositor darker. Genitalia: Last ventral segment of female more than twice as long as pre- ceding; lateral angles rounded, posterior margin slightly sinuately produced, roundingly excavated at middle with a small sharp median notch. Male pygofer triangular with typical Twiningia hook on ventral outer point. Aedea- gus enlarged on basal half, lateral processes of shaft slender, much longer than shaft. Holotype male, allotype female. 13 females and 12 males paratype, Mountain Springs, California, July 25, 1938, R. H. Beamer. The collections were made five miles east of Jacumba, California, from Juniper. Twiningia fumida (Ball). Scaphoideus fumidus Ball, E. D., Can. Ent., XX XIII, p. 8, 1901. Resembling 7. 4/anda, dark reddish brown in color with apex of elytra, and base of costa, light, usually without areoles. Genitalia: Almost identical with T. b/anda; processes of aedeagus possibly slightly longer, and apices of styles more curved. Specimens at hand swept from Juniper. Twiningia grandis, n. sp. Resembling 7. malvastra Ball, but smaller, nearer true gray in color with vertex much shorter and blunter and shaft of aedeagus more slender and about half as long again as in that species. Length 5 mm. Vertex short, flat, not excavated, margin meeting at more than a right angle. Color: General color cinereous with darker markings often in semblance of cross-bands; vertex with margin light, bordered with fuscous above and below, usually a semblance of a darker spot on disc either side of light median line. Pronotum darker mottled on disc. Elytra with ramose pigment lines and spots often giving a semblance of cross-banding; recurrent veins to costa and apex of elytra dark. Venter stramineous with some dark marking. Genitalia: Last ventral segment of female about asin T. malvastra. Pygofer more or less triangular with a heavy bifid process on ventral outer point. Aedeagus in lateral view long and slender, curved dorsally near base with pair of long slender lateral processes arising near apex of shaft, curving dorsally for half their length than anteriorly to end almost at base of shaft. Holotype male, allotype female, 2 male paratypes; Silver City, New Mexico, July 22, 1936, R. H. Beamer. 1 male paratype, same data, D. R. Lindsay. 176 PROC. ENT. SOC. WASH., VOL. 44, NO. 8, NOV., 1942 Twiningia malvastra, Ball. Twiningia malvastra Ball, E. D., Bull. Brook. Ent. Soc., p. 94, 1931. This is one of the larger species of the genus. Superficially it resembles Platymetopius vittellina or Norvellina mildredae Ball more than it does other species of this genus. Genitalia: Male pygofer more or less triangular with strong, bifid hook on ventral outer point. Aedeagus with short shaft and heavy base, sides of shaft almost parallel, diverging slightly just at dividing of shaft into two parts, each of which is as long or longer than shaft, and curves dorsally and apically to almost meet base of shaft. Paratypes from Glen Oaks and Granite Dell, Ariz., and additional specimens from Silver City, New Mexico, at hand for study. Twiningia pellucida, (Ball). Scaphoideus pellucidus Ball, E. D., Can. Ent., XLI, p. 83. 1909. Playmetopius planus Van Duzee, E. P., Proc. Calif. Acad. Sci., p. 414, 1925 (New synonymy). Resembling T. b/anda (Ball), but with a much longer, sharper vertex. Genitalia: Like that of T. b/anda, but the processes of aedeagus scarcely reaching the tip of shaft which is often somewhat enlarged. Numerous specimens from many hosts examined with a lot of variations in size and color. Twiningia acuta, n. sp. Resembling 7. 4/anda, but vertex shorter and sharper; elytra almost free of areoles except in region of cross-veins, and male aedeagus with base quite enlarged and process much longer than shaft and projecting at right angles to it. Length 5-5.5 mm. Vertex with margins straight, meeting in slightly less than a right angle; about one-fifth wider between eyes than length at middle. Color: Almost evenly light brown throughout; margins of vertex light and sometimes the scutellum. Areoles few, confined usually to area of cross-veins. Genitalia: Last ventral segment of female about twice as long as preceding, posterior margin sharply excavated on lateral edges, median third strongly produced with rounded median notch. Male: basal half of shaft of aedeagus broad, almost three times as wide as apex, pair of quite slender lateral processes bend abruptly in at right angles just before apex of shaft, extending away from shaft almost two-thirds its length. Pygofer almost triangular with hook on outer ventral point, projecting dorsally and slightly out with outer margins slightly concave and distinctly serrate. PROC. ENT. SOC. WASH., VOL. 44, NO. 8, NOv., 1942 177 Holotype male, Huachuca Mts., Arizona, July 8, 1932, R. H. Beamer. Allotype female same place, July 18, 1938, L. W. Hepner; 2 male, and 2 female paratypes, August 22, 1935; 1 female, July 8, 1932, Huachuca Mts., Arizona, R. H. Beamer. Additional specimens on hand, Silver City, New Mexico, and Miami, Arizona, R. H. Beamer. Twiningia areolata, n. sp. Resembling T. d/anda, but much darker in color with numerous whitish areoles scattered over elytra and median notch in last ventral segment of female about one-third as deep as segment. Vertex flat, slightly concave; margins almost straight, forming about right angle; width between eyes slightly longer than length at middle. Color: Dark brown; vertex margins and an indication of median line light; pronotum with numerous minute flecks of white. Scutellum mottled lighter and darker brown. Elytra generally darker with numerous small white areoles. Venter evenly buff colored. . Genitalia: Last ventral segment of female more than twice as long as preceding; lateral margins deeply excavated on outer corners; posterior margin roundingly protruding on median third with deep vase-shaped excision at middle reaching one-third to base. Pygofer of male more or less triangular in shape with usual hook on ventral outer point. Aedeagus with shaft broad throughout, lateral processes reaching tip. Holotype male, allotype female, 3 males and 2 female para- types, Arroyo Seco River, California, August 8, 1938, R. H. Beamer; 1 male and 1 female, Lompoc, California, August 9, 1939, and 1 female, Topango Canyon, California, August 5, 1938, R. H. Beamer, are also paratypes. Twiningia solitaria Ball. Twiningia solitaria Ball, E. D., Bull. Brook. Ent. Soc., p. 18, 1936. Resembling 7. malvastra externally and T. pellucida in genitalia. It may be separated from the former by processes on aedeagus ending at tip of shaft, and the latter by notch in last ventral segment of female extending half way to base. Genitalia: Last ventral segment of female with straight sided, round bot- tomed median notch extending half way to base. Pygofer of male almost rectangular with short stout hook on ventral outer corner; aedeagus of normal type, slightly curved dorsally, lateral processes ending near apex of shaft. Four male paratypes and 23 specimens from Joshua trees near Palmdale, California, P. W. Oman, 1935, have been studied. 178 PROC. ENT. SOC. WASH., VOL. 44, NO. 8, NOV., 1942 Twiningia blanda (Ball). Scaphoideus blandus Ball, E. D., Can. Ent., XX XIII, p. 7, 1901. Pale buff in color with numerous clear areoles scattered over the elytra about one to each cell. Vertex medium in length; wider between eyes than length at middle, margins meeting at about right angle. Genitalia: Pygofer rather triangular in shape with a short stout dorsally directed tooth on the outer ventral point. Aedeagus with shaft widest at base, curved slightly dorsally and with process arising on either side about one- third distance from base and extending parallel with shaft to distance beyond shaft of about shaft’s basal width. A cotype female from Rifle, Colorado is at hand as well as numerous specimens of both sexes from Mesa Verda and Durango, Colorado. Twiningia reticulata, n. sp. Resembling 7. pellucida (Ball), but vertex broader with margins arcuate; color of male lemon yellow, with elytra reticulate veined, and aedeagus with processes much longer than shaft. Length 5—5.5 mm. Vertex broad at base and long, slightly longer than width between eyes in male and about same in female; disc with a semblance of a median longitudinal sulcus; margins curved out meeting ina rather sharp point. Elytra with more cross-veins than any species I have seen. Color: Light buff with some individuals, at least, lemon yellow; margins of vertex light, margined with darker, also a semblance of a lighter median longitudinal line on vertex; elytra with very few lighter areoles. Genitalia: Last ventral segment of female about two and one-half times as wide as preceding segment; lateral margins excavated at outer corners. Pos- terior margin roundingly produced on middle third with median round-sided incision one-fourth as deep as width of segment. Male pygofer triangular in shape with small semblance of hook on outer ventral corner. Aedeagus about typical, narrowing on basal third; lateral processes extending beyond shaft about half its length. Holotype male, allotype female, and 2 female paratypes, Red Bluff, California, June 27, 1935, Ree Beamer. Twiningia rubrafuscea, n. sp. Resembling 7. areolata, but not so dark and elytra practically without areoles. Length 4.5 mm. Vertex flat, slightly excavated; margins straight, meeting in slightly less than a right angle, somewhat wider between eyes than at middle. Color: Reddish brown, vertex and pronotum often lighter; areoles in cells almost lacking. PROC. ENT. SOC. WASH., VOL. 44, NO. 8, NOV, 1942 179 Genitalia: Last ventral segment of female twice as long as preceding seg- ment; lateral margins excavated on outer corners, posterior margin with short broad lobe on each side and a much stronger median lobe sharply notched at middle. Male pygofer more or less triangular with a somewhat bifid hook on ventral outer point. Aedeagus with shaft quite broad, not much more than twice as long as wide; apex slightly enlarged just before tip; lateral processes narrow in comparison to width of shaft, extending beyond apex of shaft and distinctly sinuate where they pass apex of shaft. Apex of styles almost straight. Holotype male, allotype female, and 1! female paratype, San Antonio Canyon, California, August 4, 1938, R. I. Sailer. Twiningia magnata Ball. Twiningia magnata Ball, E. D., Bull. Brook. Ent. Soc., p. 94, 1931. This is one of the larger pale brown species, with very few areoles in the elytra. Length 5.5-6 mm. Genitalia: Last ventral segment of female more than twice as long as preceding; lateral angles broadly rounded; posterior margin roundingly pro- duced medianly, shallowly excavated with two sharp teeth near middle of excavation. Male pygofer more or less triangular with rather heavy avice- phaliform process on ventral outer point; aedeagus in dorso-ventral view, broad, about four times as long as wide, curved dorsally, lateral processes arising near base, sheath-like, each one about as broad as true shaft, narrowing beyond basal half, widening again to end in sharp bifid apices beyond apex of shaft. One female from Santa Rite Mts., Arizona, and a pair from Chiricahua Mts., Arizona, compared with type were studied. A NEW NAME FOR ODONTOMERUS GRAVENHORST, A NEW SPECIES AND TAXONOMIC NOTES (HYMENOPTERA : ICHNEUMONIDAE). By R. A. CusHMman, Bureau of Entomology and Plant Quarantine, U. S. Department of Agriculture. The receipt of specimens representing a remarkable new species of the genus heretofore called Odontomerus Gravenhorst has been che means of bringing to my attention the fact that the generic name is preoccupied. Accordingly, I propose a new name for Odontomerus Gravenhorst and describe the new species. Also, I take this occasion to publish some corrections to my revision of the North American species.’ 1 Proc. U. S. Nat. Mus. 77 (Art. 3): 1-15, 1930. 180 PROC. ENT. SOC. WASH., VOL. 44, NO. 8, NOV., 1942 ODONTOCOLON, new name.? Odontomerus Gravenhorst, Ichneum. Europ. 3: 851, 1829 (pre- occupied by Odontomerus Leach 1819). Genotype.—Ichneumon dentipes Gmelin. Autobasic. Odontocolon polymorphum, new species. Differs from all other North American species of Odontocolon by its almost uniform light-brown color and hairy eyes, and from all but dicolor (Cresson) in lacking the twist to the middle tibia in the female. In its hairy eyes and nontwisted middle tibia it resembles the European O. quercinus (Thomson). Includes subapterous forms in both sexes. Female.—Length 5-7 mm., antenna 4-5.5 mm., ovipositor sheath 5-7 mm. Fully winged female (holotype) (Fig. A).—Head fully three-fourths as thick as broad; occiput shallowly concave; temple broader than short diameter of eye, evenly convex and rounding slightly beyond outside tangent of eye; malar space nearly as long as basal width of mandible; eye shortly hairy, nearly twice as long as broad, its lower margin acutely rounded; ocelli slightly imbedded, diameter of a lateral ocellus less than half as long as ocellocular line and much shorter than postocellar line; temples, vertex, and frons polished, vertex and frons sparsely punctate, frons with a median carina; face rugoso- punctate; clypeus arcuately transversely rugoso-striate; antenna shorter than body, slender filiform, 28-jointed. Thorax about 2.5 times as long as broad and as deep as broad, fully as broad as head, flattened dorsally, especially the disk and lateral lobes of mesoscutum; pronotum rugose, especially in the scrobes; prescutum only moderately convex, lateral lobes polished, notaulices rather shallow, bordered by narrow rugulose areas on prescutum and lateral lobes, disk longitudinally rugose, scutellum rather flat, polished, scarcely punctate, mesopleuron obsoletely rugulose, striately so in humeral angle, speculum shining, fovea deep; metapleuron and sides and apical slope of pro- podeum irregularly rugose, areola and basal area transversely striate, basal lateral areas punctate; dorsal face of propodeum fully twice as long as petiolar area, apophyses short. Legs very stout; middle tibia not twisted; hind femur barely twice as long as deep at tooth, which is short and obtuse with only a weak crest apicad of it and is situated near middle of femur; hind tarsus rather slender, subequal in length to tibia, second and apical joints about equal. Wings rather narrow, forewing reaching to apex of abdomen; basal abscissa of radius little longer than breadth of stigma, apical abscissa, discocubitus, and second recurrent nearly straight; nervellus reclivous, upper abscissa perpendic- ular. Abdomen broader than thorax, first tergite entirely and second mostly longitudinally striate, third transversely aciculate in middle at base; inter- mediate tergites subpolished, apical ones finely punctate and with denser, short, appressed pubescence; ovipositor sheath as long as body. Light brown, mesoscutum laterally darker brown, abdomen, beyond first 2 From désovs, tooth, and x@dou, leg, in reference to the toothed hind femur. PROC. ENT. SOC. WASH., VOL. 44, NO. 8, NOV., 1942 181 tergite, and legs paler; wings subhyaline, venation blackish; ovipositor sheath tipped with blackish. Females with vestigial wings (Fig. C).—Like fully winged female except that thorax is narrower than head; with mesoscutum, especially prescutum, scutellum, and mesopleura flatter; wings reduced to minute twisted vestiges; tegulae much reduced. Brachy pterous females (Fig. B).—Like females with vestigial wings in thoracic structure except that wings on right side are partly developed and fully veined, the hind wing virtually normal in size, the forewing in one specimen equal in length to the hind wing and in the other specimen somewhat shorter, and the right tegular somewhat larger than the left; frenuum normal, although, because of the shortness of the fore wing, it can not function. Male.—Length 4.75-6.0 mm.; antenna 4.5—5.5 mm. Fully winged male (allotype).—Like female except with eyes and ocelli slightly larger, malar space shorter, diameter of ocellus as long as postocellar line and more than half as long as ocellocular line, temple and short diameter of eye subequal in length; first tergite about three times as long as broad apic- ally; abdomen darker, especially apical tergites dark brown or margined with brown. Male with vestigial wings.—Differs from normal male in same way as the corresponding female differs from winged female. Type locality —Seattle, Wash. Type, allotype, and paratypes—No. 56,436, U. S. National Museum. Paratypes—Canadian National Collection. Fight females and five males reared March 3 and April 11, 1942, from a dead branch of alder infested by anobiids. The 13 specimens were received recently from the Seattle, Wash., office of the Bureau of Entomology and Plant Quaran- tine. They were reared during March and April, 1942, from a dead branch of alder infested by an anobiid beetle. The series includes 1 fully winged female, 5 females with vestigial wings, 2 females brachypterous on the right side and with vestigial wings on the left side, 4 fully winged males, and 1 male with vestigial wings. Accompanying the atrophy of the wings is great reduction in the thorax, especially of those areas to which the flight muscles are attached, that is, the mesoscutum and the mesopleura, and also in the tegulae. Some of the apterous females and the subapterous male show a slight degree of atrophy of the ocelli. Whether the tendency to apterism is inherent in the species or is due to some special ecological or genetic factor influencing this particular lot of material is a question that can be answered only by further rearing. The strange asymmetrical inter- mediate forms suggest the plausibility of the latter explanation. On the other hand, the consistent concurrence of thoracic and 182 PROC. ENT. SOC. WASH., VOL. 44, NO. 8, NOV., 1942 b] +} ’ ’ alar atrophy, together with the apparent association of the parasite with a host, colonies of which may persist for long periods of time, strongly supports the theory that the species is in the process of becoming apterous. Odontocolon canadensis (Provancher), new combination. Odontomerus canadensis Provancher, Nat. Canad. 9: 16, 1877. Odontomerus tibialis Cushman, Proc. U. S. Nat. Mus. 77 (Art. 3): 11, 1930. New synonymy. Since the publication of my revision® | have had an oppor- tunity to examine the type of canadensis. As pointed out by Townes‘ in his correction to Gahan and Rohwer’s list of lecto- types of Provancher’s species, the type female bears no labels, while the yellow label 426 is on the male. Comparison of a female specimen from Quebec with the types of both canadensis and tibialis shows the two to be synonymous. The type of canadensis is slightly smaller than the specimen compared with it, but aside from some fading of the legs is very similar to it. The above synonymy makes another name necessary for the species that I treated under the name canadensis Provancher. Henry K. Townes, who has examined the type of albotibialis Bradley, tells me that it 1s conspecific with this species. The following synonymy is therefore indicated. Odontocolon albotibialis (Bradley), new combination. Odontomerus albotibialis Bradley, Bull. Brooklyn Ent. Soc. 13: 103, 1918; Cushman, Proc. U. S. Nat. Mus. 77 (Art. 3): 14, 1930. Odontomerus canadensis Provancher; Cushman, Proc. U. S. Nat. Mus. 77 (Art. 3): 13, 1930, not Provancher. For complete synonymy see the reference above to my pre- vious treatment of canadensis. Odontocolon aciculatus, new name. Odontomerus striatus Cushman, Proc. U. S. Nat. Mus. 77 (Art. 3): 14, 1930. Preoccupied by O. striatus Brullé, ae Nat. Ins. Hym. 4: 123, 1846. 3Proc. WU. S. Nat. Mus: 77 (Art. 3): 1-15, 1930. 4Canad. Ent. 71:94, 1939: PROC. ENT. SOC. WASH., VOL. 44, NO. 8, NOV., 1942 183 LEGEND FoR FIGURES. Odontocolon polymorphum Cush., showing comparative thoracic and wing development in (A) fully winged female, (B) female with partly developed wings on right side and vestigial wings on left side, and (C) female with all wings vestigial. Drawings by Arthur D. Cushman. MINUTES OF THE 529TH REGULAR MEETING OF THE ENTO- MOLOGICAL SOCIETY OF WASHINGTON, JUNE 4, 1942. The 529th regular meeting of the Society was held at 8 p. m., Thursday, June 4, 1942, in Room 43 of the National Museum. President Cory presided and 27 members and 4 visitors attended. The minutes of the previous meeting were read and approved. J. C. Holton of Memphis, Tennessee, a member of the Bureau of Ento- mology and Plant Quarantine, was unanimously elected to membership in the Society. 184 PROC. ENT. SOC. WASH., VOL. 44, NO. 8, NOV., 1942 | R. A. Cushman exhibited two of three cocoons found by J. M. Hollister in spider webs at Melbourne, Fla. The cocoon makers had emerged, but the cocoons were identified as those of a species of psammocharid wasp by com- parison of the larval exuviae from one of them with that of Pseudagenia archi- tecta (Say). This peculiar habit of a psammocharid wasp parasitizing the spider prey in the web has been noted only twice before, first by Emery (quoted by Sharp, Cambridge Natural History, vol. 6, p. 106; original reference not found) and later by Hartman (“‘Pompilid that does not bury its prey,” in Bull. Univ. of Texas, No. 65, 1905, p. 54). Hartman did not identify either the spider or the wasp. In the present instance Mr. Hollister was unable to identify the spider host, stating merely that the web appeared to him to be more like a sheet-web than a funnel-web. In structure the cocoons are very peculiar in that they are covered, except where they were in contact with the web, by densely set, vertical hair-like strands. Each hair tapers from the base to the very fine apex, which is frequently hooked. Otherwise the cocoon is composed of four layers, outside a coarse golden-brown mesh, then a dense finer tangle, next a very thin dark brown layer and last a slightly thicker somewhat less dense layer with the inner surface almost polished. How the larva can, from inside the cocoon, spin the hairs on the outside is perhaps explainable as follows: As the outer mesh of the cocoon is spun the larva reaches over the edge and spins the hairs, this process continuing until the final completion of the mesh at the end of the cocoon, where the larva reaches through the mesh to apply the final hairs. This note was remarked upon by A. H. Clark. Cushman also exhibited specimens of an undescribed species of the ichneu- monid genus Odontomerus. The series includes fully winged and wingless individuals of both sexes, and females brachypterous on the right side and wignless on the left. His remarks will appear elsewhere in connection with the description of the species. Remarks followed by A. H. Clark and M. D. Leonard. The regular program included three talks by members of the Bureau of Entomology and Plant Quarantine. 1. A recently introduced beetle Amphimallon majalis (Razoum). A. S. Hoyt. The larvae of an European chafer were collected in 1940, near Newark, N. Y. It was not until 1942, however, that they were identified. It was realized that a potentially serious pest had become established and surveys and other investigations were begun immediately by members of the Bureau of Entomology and Plant Quarantine and by members of the Experiment Station staff of New York. The larva feeds on the roots of grass principally and its attacks resemble those of the Japanese beetle larva. The adults appar- ently do no feeding or at least only a negligible amount. (Secretary’s abstract.) Remarks followed by Leonard, Cory, Cushman, Muesebeck and Béving. 2. A restudy of the white-fringed beetle. L. L. Buchanan. (Mr. Muesebeck read some notes prepared by Mr. Buchanan, who was unable to attend the meeting.) The common name “‘white-fringed beetle,’ as used in these notes, refers to any member of the subgenus Graphognathus of the curculionid genus Panto- morus. Graphognathus includes an as yet undetermined number of forms PROC. ENT. SOC. WASH., VOL. 44, NO. 8, NOV., 1942 185 which live naturally in the temperate portion of South America, chiefly be- tween 25° and 40° South, in Chile, Argentina, Uraguay, and southeastern Brazil. A very few more northern specimens, from Peru, have been seen. The first record of the occurrence of a white-fringed beetle in North America is based on specimens collected in the vicinity of Svea, Fla. (near Florala, Ala.) in 1936. These were identified as /eucoloma Boh., a species originally described from Tucuman, Argentina. Field work in southeastern United States during the past 5 or 6 years has disclosed the presence there of 5 additional forms of the weevils. The infested area is a strip bordering the Gulf, in Florida, Ala- bama, Mississippi, and Louisiana, and extending from De Funiak Springs, Fla., and Florala, Ala., on the east to several miles west of New Orleans, La., on the west. Among thousands of specimens of all the forms examined no male has ever been found and it is believed that only females are produced by any of the white-fringed beetles. The evidence now available indicates very strongly that the various distinguishable populations are neither species, subspecies nor varieties, as these categories are commonly interpreted in bisexual genera, but are of some other and lower rank. The term “‘microspecies’’ is suggested for designating the smallest taxonomically recognizable unit among the white-fringed beetles; and where, as seems to occur not infrequently, several microspecies fall into a more or less clearly definable larger segregate (resembling the species-group of bisexual genera) the term “‘mascrospecies” might be used. (Author’s abstract). Comments and questions followed by Cushman, Harned, Cory, Leonard, Rohwer and Hoyt. 3. Research developments in white-fringed beetle control. C. M. Packard. Biological investigations on the various species of Graphognathus are being carried on at Florala, Ala., Gulfport, Miss., and New Orleans, La. In most cases the life cycle is completed in one year, although a few individuals have required three years for development. Three factors which demonstrate the serious potentialities of these pests are: the large numbers of eggs laid by each beetle, in one species as many as 3200 with an average of approximately 700; the fact that the species are parthenogenetic; and that they attack some 250 species of plants. The best control measures are spraying or dusting with calcium arsenate or cryolite and the rotation of crops. The only parasite which has been found so far is a nematode, but investigations thereon are only in the experimental stage. (Secretary’s abstract.) Remarks followed by Muesebeck, Cory, McGovran, Weigel, Richardson, Cushman, Harned and Leonard. President Cory announced the interim appointment, by the Executive Committee of the Society, of Hahn W. Capps as Acting Treasurer and W. H. Anderson as Acting Recording Secretary. These men will serve until the Annual Meeting in December at which time new officers will be elected. Adjournment at 9:45 p. M. W. H. ANDERSON, Acting Recording Secretary. 186 PROC. ENT. SOC. WASH., VOL. 44, NO. 8, NOV., 1942 MINUTES OF THE 530TH REGULAR MEETING OF THE ENTO- MOLOGICAL SOCIETY OF WASHINGTON, OCTOBER 1, 1942. The 530th regular meeting of the Society was held at 8 p. m., Thursday, Oct. 1, 1942, in Room 43 of the National Museum. President Cory presided, and 37 members and 26 visitors attended. The minutes of the previous meet- ing were read and approved. The following two men were unanimously elected to membership in the Society. Austin W. Morrill, Jr, Bur. Ent. and Pl. Quar., Beltsville Research Center, Beltsville Md. Z. P. Metcalf, Prof. of Zoology, University of North Carolina, Raleigh, North Carolina. F. M. Wadley reported on an obituary in memory of L. G. Baumhofer which had been prepared for publication in the Proceedings. It was voted to publish the obituary The program consistedof a moving picture, in color, entitled Tucura Control in the Argentine, presented by Carl J. Drake of Iowa State College. Some conception of the tremendous numbers of grasshoppers present in areas of Argentina was given. Methods of mixing and spreading poison bait were shown as well as placing of fences to stop migration. The following visitors were called on for comment or introduction: M. T. James, F. L. Campbell, J. L.. Horsfall, T. T. Haack, C. S. Harris, John Porter, C. A. Sheffield and A. Wetmore. Adjournment at 9.20 p. Mm. W. H. AnDErson, Acting Recording Secretary. Actual date of publication, November 30, 1942. " AS vu ~ * % 4 LR gE I a a Na a al alk i al ga i eww + We GS ANNOUNCEMENT é Prices for back volumes and single numbers of the Proceedings of the Ento- mological Society of Washington are as follows until further notice: Vols. 1-19: per: volumesce oa se 8200 per number... haat ek ial RL eR LMAO Vols:20-41. : ner-volumies 5 fi tog 4.00 Per mci ORR es se ae ae SO Dowble numbers 5 soo ee Ss (per double no.) 50 These include Nos. 2-3 of Vol. 7; Nos. 1-2 and 3-4 of Vol. 8; Nos. 1-2 and 3-4 of Vol. 10; Nos. 7-8 of Vol. 24; Nos. 5-6 and 7-8 of Vol. 25 and Nos, 8-9 of Vol, 36. Note: Nos. 1-4 of Vol. 9 and Nos. 1-4 of Vol. 19 (each of which were issued under one cover) are available only as complete volumes. Per volume.———.......- ene 2.00 Complete sets, Vols. 1-42 (1884-1940) Inclusive... $121.00 A classified list of available separates of articles which have appeared in the Proceedings will be furnished upon request. A 20 PERCENT DISCOUNT WILL BE MADE TO MEMBERS : AND SUBSCRIBERS ON ORDERS OF $10.00 OR OVER. Domestic shipments prepaid, foreign shipments f. o. b. Washington. A new book “The North American Bees of the Genus Osmia” by Grace A. Sandhouse, issued as Memoir Number 1 of the Society, is now available. Postpaid to non-members and institutions..................-. $3.00 CO members of the Socletyaass tec es $2.50 This is a revisionary study of the genus Osmia with keys for identification descriptions and distribution records for known N. American species. (Make checks, drafts, etc. payable to the Entomological Society of Washington.) F. M. WADLEY, Corresponding Secretary, Address: Bureau of Entomology and Plant Quarantine, Washington, D.C. CONTENTS BEAMER, R. H.—A REVISION OF THE GENUS THININGIA IN AMERIC. OF MEXICO (HOMOPTERA-CICADELLIDAE) . ecu ae CUSHMAN, R. A.A NEW NAME FOR ODONTOMERUS GRAVENHORST, ie NEW yy FENNAH, R. G.—NOTES ON SOME INDIAN FLATIDAE . ie Pa 2 a Praye o! ~ Div Ir Sb . « CRESS rere o | . vf eh aS rT & Ma¢ Mrs VOL. 44. December, 1942 No. 9 PROCEEDINGS a OF THE ; ENTOMOLOGICAL SOCIETY ‘ OF WASHINGTON a Se ere pee er, er ee ‘<= i. 5 yj PuBiisHED Montuiy Except Jury, Aucust AND SEPTEMBER BY THE ENTOMOLOGICAL SOCIETY OF WASHINGTON U. S. NATIONAL MUSEUM WASHINGTON, D. C. Entered as second-class matter March 10, 1919, at the Post Office at Washington, D. C., under Act of August 24, 1912, Accepted for mailing at the special rate of postage provided for in Section 1103, Act of October 3, 1917, authorized July 3, 1918. THE ENTOMOLOGICAL SOCIETY OF WASHINGTON : OrcanizeD Marcu 12, 1884. The regular meetings of the Society are held in the National Museum on the __ first Thursday of each month, from October to June, inclusive, at 8 P. M. ie Annual dues for members are $3.00; initiation fee $1.00. Members are entitled to the Proceedings and any manuscript submitted by them is given 5 prececlence over any submitted by non-members. Bes). OFFICERS FOR THE YEAR 1942. Honoraty President icciaie ss, Ce et en ae ge a et L. O. Howarp PreSQenl Sieh ore igs a Ras ee Le a Ce nee a E, N. Cory — Pirst VARESE CRA CNT eg ea. ta lee eae. oe he nana ees R. W. Harned ~ DS CCONG: VICE PTESIAC IT cg So eins ee oes hE ae al P. N. AnNAND Recording ySecverar yey sce ie ete See. Fae a Asuiey B. GurNEY Garrespongine: SCCvelary 5: xe tee a ie Ga ce 5 ee aera eae F. M. Waptey Tireasyer® ae ew BRI eg eon een ae L. G. BAuUMHOFER Pater cee ies CE Si Dia A nla ita RUE Sana rey ace meena W. R. Watton Executive Committee .H. E. Ew1ne, C. F. W. Mueseseck, R. E. SNopcrass Nominated to represent the Society as Vice-President of the Washington Academy of Sciences ....... Austin H. Crark PROCEEDINGS ENTOMOLOGICAL SOCIETY OF WASHINGTON. Published monthly, except July, August and September, by the Society at — Washington, D. C. Terms of subscription: Domestic, $4.00 per annum; foreign, $4.25 per annum; recent single numbers, 50 cents, foreign postage extra. All subscriptions are payable in advance. Remittances should be made payable to the Entomological Society of Washington. Authors will be furnished not to exceed 10 copies of the number in which their articles appear at a charge of 25 cents per copy, or reprints of such articles, with- out covers, at the following rates, provided a statement of the number — desired accompanies the manuscript: 4 pp. 8 pp. 12 pp. 16 pp. 50 copies 225 4.50 6.75 9.00 100 copies 2.50 5.00 7.50 10.00 Authors will be furnished gratis with not to exceed 2 text engravings of line _ drawings with any one article, or in lieu thereof, with one full page line plate. ie Half-tone engravings at author’s expense; the same will be sent author upon request after publication. Authors may purchase any published engraving at $1.00 per plate and 50 cents per text figure. Immediate publication may be ebtained at author’s expense. All manuscripts should be sent to the - Editor, care Bureau of Entomology and Plant Quarantine, Wash-_ ington, D. C. oe The Corresponding Secretary and Treasurer should be addressed similarly. es Ph a a > - a rua ied : - 7 . é PLATE 17 PROC. ENT. SOC. WASH., VOL. 44 WILLIAM SCHAUS [188 ] PROCEEDINGS OF THE ENTOMOLOGICAL SOCIETY OF WASHINGTON VOL. 44 DECEMBER, 1942 Now9 WILLIAM SCHAUS. Doctor Schaus died peacefully on June 20 in the presence of his friend and constant companion, Jack Barnes. For the past year, failing health, due to his advanced age, had kept him confined to his home and from any active work in his chosen field. His passing removes one of the last of the elder lepidopterists and the one who has probably contributed most to our knowledge of the neotropical fauna. An active member of our society since 1914, he was a frequent attendant at its meetings when his health permitted and a substantial contributor to our Proceedings. His chief interest throughout his life has been the Lepidoptera and during the past forty years he has devoted his labor and means consistently to make the National Collection of tropical American Lepidoptera the most complete and representative in the world. He contribu- ted generously to other institutions, notably the British Museum of Natural History, the Carnegie Museum at Pitts- burgh and the American Museum of Natural History; but the bulk of his collection and his valuable library were given to the U. S. National Museum, and there he worked for the last twenty years of his active life. He described over five thousand new species, mostly from tropical America. With few exceptions the types of these are deposited in the National Collection. Dr. Schaus was born in New York City on the 11th of January, 1858. His father was the well-known art collector and dealer, William Schaus, Sr., proprietor of the Schaus Galleries, born in Germany and naturalized as an American citizen in 1854. His mother (born Margaret Connover) was from an old American family. Young Schaus was born to affluence and it was intended that he should carry on the busi- ness of his father. He received his early education at Exeter Academy and was sent abroad to finish his education in France and Germany. His principal training was in art, music and languages; but as a young man he came under the influence of Henry Edwards and found his real vocation. He decided, despite patental opposition, and at the sacrifice of a promising career as successor in his father’s business, to devote SAN - 7 1942 190 PROC. ENT. SOC. WASH., VOL. 44, NO. 9, DEC., 1942 his life to the study of Lepidoptera. He made his first col- lecting trip into Mexico in 1881. ‘Thereafter he made frequent and extended trips with his companion and friend, Jack Barnes, to Mexico, Costa Rica, Guatemala, Panama, Cuba, Jamaica, Dominica, St. Kitts, the Guianas, Colombia and Brazil and collected over 200,000 Lepidoptera. From 1901 to 1905 he lived at Twickenham, England. He visited England and the continent again in 1910 and in 1925 he again visited the conti- nent and brought back the Dognin collection of tropical American Lepidoptera, purchased for the National Collection by funds which he had raised and to which he had contributed substantially. From 1919 until his retirement in July, 1938, he was on the staff of the Bureau of Entomology of the U. S. Department of Agriculture, first as specialist in Lepidoptera and later as entomologist. In 1921 he was made honorary assistant curator of insects of the U. S. National Museum. Besides being an active member of the Entomological Society of Washington he was an honorary fellow of the Royal Ento- mological Society of London; fellow of the Zoological Society, London; honorary correspondent of the Societe Entomologique de France; honorary member of the Entomological Society of Brazil; fellow of the American Entomological Society; fellow for life of the Metropolitan Museum of Art; member of the American Association for the Advancement of Science, and of the Biological Society of Washington; corresponding member of the Philadelphia Entomological Society, and correspondent of the Academy of Natural Sciences, Philadelphia. In 1921 he received the honorary degree of master of arts from the University of Wisconsin and in 1925 that of honorary doctor of science from the University of Pittsburgh. Few lepidopterists, even of his generation, have had such a wide and intimate knowledge of the world fauna as he. While his main interest centered in the American tropics, he worked with and described many Old World Lepidoptera. He was an accomplished linguist, a lover of art and music, a charming host and the most generous of friends. His long life was a comfort- able and happy one. He had achieved his ambition and his end was such as he would have chosen. A bibliography * of his published works follows: 1883. Descriptions of the early stages of some Mexican Lepidoptera: Papilio, 3:186-189. 1884. Note on Pachylia ficus L.: Papilio, 4:21. 1884. Early stages of Mexican Lepidoptera: Papilio, 4:100—103. 1889. Descriptions of new species of Mexican Heterocera: Ent. Americana, 5:87-90, 190-192. ‘Compiled by Miss Mathilde Carpenter, Librarian, Insect Division, U.S. National Museum, 1890. 1890. 1892. 1892. 1893. 1894. 1895. 1896. 1896. 1896. 1896. 1896. 1897. 1898. 1898. 1898. 1898. 1899. 1900. 1901. 1901. 1901. 1901. 1902. 1902. 1903. 1904. PROC. ENT. SOC. WASH., VOL. 44, NO. 9, DEC., 1942 191 New species of Mexican Lepidoptera: Ent. Americana, 6:18-20, 45-47, Description of Eterusia urania n. sp.: Ent. Americana, 6:39. American Lepidoptera; illustrations of new and rare species. Part 1, pp. 1-24. (London). Descriptions of new species of Lepidoptera Heterocera from Brazil, Mexico, and Peru: Proc. Zool. Soc. Lond., pp. 272-291, 318-341. (With W. G. Clements). On a collection of Sierra Leone Lepidop- tera. viand 46 pp. (London). On new species of Heterocera from Tropical America: Proc. Zool. Soc. Lond., pp. 225-243. Some notes on American Sphingidae: Ent. News, 6:141-144. New species of Heterocera: Journ. N. Y. Ent. Soc., 4:51-60. New species of American Heterocera: Journ. N. Y. Ent. Soc., 4:130-145. Notes on the Noctuidae described by Guenee in the Saunders’ Collection: Ent. News, 7:7-8. On Walker’s American types of Lepidoptera in the Oxford Univer- sity Museum: Proc. Zool. Soc. Lond., pp. 634-650. New species of Geometridae from Tropical America: Journ. N. Y. Ent. Soc. 5:161—166. Three new species of Heterocera from Sierra Leone, Africa: Bull. Amer. Mus. N. H., 9:325-326. New species of Noctuidae from Tropical America: Journ. N. Y. Ent. Soc., 6:107—120. New species of Heterocera from Tropical America: Journ. N. Y. Ent. Soc., 6:138-149. Notes on American Sphingidae, II: Ent. News, 9:134-136. Two new species of Hesperocharis: Ent. News, 9:215. New species of Lithosiidae from Tropical America: Journ. N. Y. Ent. Soc., 7:214-217. New species of Heterocera from Tropical America: Journ. N. Y. Ent. Soc., 8:225-234. A revision of the American Notodontidae: Trans. Ent. Soc. Lond., pp. 257-344. Descriptions of some new species of Heterocera: Ann. & Mga. N. H. (7) 7: 265-270. New Species of Noctuidae from Tropical America: Ann. & Mag. N. Hi. (7) 8: 38=51, 77-99. New species of Geometridae from Tropical America, pts. I and II: Trans. Amer. Ent. Soc., 27: 165-194, 241-276. Descriptions of new American butterflies: Proc. U. S. Nat. Mus., 24 (1262): 383-460. A new species of Dirphia: Journ. N. Y. Ent. Soc., 10:54. New Noctuidae from Tropical America: Journ. N. Y. Ent. Soc., 11:230-236. New species of American Heterocera; Trans. Amer, Ent. Soc., 30:135-178. 192 1905. 1906. 1908. 1910. 1910. 1910. LOW 1911. 1911. 1911. LOLI. roa LOWNs OTs SEL NONE nO OND" LOI: 1912. 19t2. 1912: 1942: [O23 PROC. ENT. SOC. WASH., VOL. 44, NO. 9, DEC., 1942 Descriptions of new South American moths: Proc. U.S. Nat. Mus., 29 (1420): 179-345. Descriptions of new South American moths: Proc. U. S. Nat. Mus., 30 (1444): 85-141. Descriptions of three new species of Saturnian moths: Proc. U. S. Nat. Mus., 34 (1597): 65-66. Descriptions of new Heterocera from Costa Rica: Ann. & Mag. Ne Es (8) 6289-2 h1. New species of Heterocera from Costa Rica, II: Ann. & Mag. N. H., (8) 6:402-422. New species of Heterocera from Costa Rica, III: Ann. & Mag. N. H., (8) 6:561—-584. New species of Heterocera from Costa Rica, IV: Ann. & Mag. N. H. (8) 7:33-84. New species of Heterocera from Costa Rica, V: Ann. & Mag. N. H., (S)p 727s —192- New species of Heterocera from Costa Rica, VI: Ann. & Mag. INGY Ee 1(8)) 7 5262-286: New species of Heterocera from Costa Rica, VII: Ann. & Mag. ING EES (8) (7:3 55—372- New species of Heterocera from Costa Rica, VIII: Ann. & Mag. N. H., (8) 7:612-634. New species of Heterocera from Costa Rica, IX: Ann. & Mag. N. H., (8) 8:90-117. New species of Heterocera from Costa Rica, X: Ann. & Mag. N. H., (8) 8:208-231. New species of Heterocera from Costa Rica, XI: Ann. & Mag. NH.» (8) 8:577—601. A quoi sert le mimetisme? Cong. Internat. Ent. Mem. Bruxelles, 1:295-304. A new Papilio from Florida, and one from Mexico: Ent. News, 22 2438-439. Descriptions of six new American Heterocera: Proc. Ent. Soc. Wash., 13: 42-44. New species of Heterocera from Costa Rica, XII: Ann. & Mag. N. H., (8) 9:34—-57. New species of Heterocera from Costa Rica, XIII: Ann. & Mag. NaER, (8)/9:202—214° New species of Heterocera from Costa Rica, XIV: Ann. & Mag. IN El-(8);9: 289-31 New species of Heterocera from Costa Rica, XV: Ann. & Mag. N. H., (8) 9:423-433, 537-551. New species of Heterocera from Costa Rica, XVI: Ann. & Mag. N. H., (8) 9:656-681. New species of Heterocera from Costa Rica, XVII: Ann. & Mag. N. H., (8) 10:231—240, 286-310. New species of Heterocera from Costa Rica, XVIII; Ann. & Mag. N. H., (8) 10:509-532, 1912. Pye TOTS: 1913: USS; LOTS: 1913. ISS: NOM ZIE POTS: 1914. 195: 1915: 1916. 1918. toto: L920! 1920. 1920- 1920. ODE 1921. 192K: 1927; 1922. PROC. ENT. SOC. WASH., VOL. 44, NO. 9, DEC., 1942 193 A new megalopygid from French Guiana: Proc. Ent. Soc. Wash., 14:53. New species of Noctuidae from French Guiana: Proc. Ent. Soc. Wash., 14:170-174. New species of Heterocera from Costa Rica, XIX: Ann. & Mag. Nz H., (8) 1121=43: New species of Heterocera from Costa Rica, XX: Ann. & Mag. N. H., (8) 11:234-262. New species of Heterocera from Costa Rica, XXI: Ann. & Mag. N. H., (8) 11:342-358, 361-386. New species of Erycinidae from Costa Rica: Ann. & Mag. N. H., (8) 11:298-303. New species of Heterocera from Brazil: Ent. News, 24:3-6. New species of Rhapalocera from Costa Rica: Proc. Zool. Soc. Lond., pp. 339-367. New species of Noctuidae from the Guianas: Proc. Ent. Soc. Wash., 14: 213-218, 1912. Two new noctuids from French Guiana: Insec. Inscit. Mens., 1:25—26 New species of noctuid moths from Tropical America: Proc. U. S. Nat. Mus., 46 (2039): 485-549. Notes on Costa-Rican Heterocera described in the Annals and Maga- zine of Natural History: Ann. & Mag. N. H., (8) 15:501-502. New species of Heterocera from Tropical America: Trans. Amer. Ent. Soc., 41: 1-9. A generic revision of the American moths of the subfamily Hypeninae, with descriptions of new genera and species: Proc. U. S. Nat. Mus:, 50'(2132): 259-399: A new Agrias from Guatemala: Ent. News, 29: 387-388. Anew Amastus from Argentina: Ent. News, 30: 174. New species of Lepidoptera in the United States National Museum: Proc. U.S. Nat. Mus., 57 (2307): 107-152. New species of Neotropical Pyraustinae: Proc. Ent. Soc. Wash. 22:172-190, 200-222. New species of Notodontidae from Central and South America: Insec. Inscit. Mens., §:147-161. Descriptions of two new species of butterflies from Tropical America: Journ. Wash. Acad. Sci., 10:434-435. New species of Lepidoptera in the United States National Museum: Proc. U.S. Nat. Mus., 59 (2372): 349-396. New species of Heterocera from South America: Insec. Inscit. Mens., 9352-58. New species of Heterocera from South America: Insec. Inscit. Mens., Os1G61-179. New species of Lithosiidae from the Oriental Region: Insec. Inscit. Mens., 10:23-37. New species of Hydriomena from Mexico and Guatemala: Insec. Inscit. Mens., 10:205-218. b 194 PROC. ENT. SOC. WASH., VOL. 44, NO. 9, DEC., 1942 1922. New species of Pyralidae of the subfamily Crambinae from Tropical America: Proc. Ent. So?. Wash., 24: 127-145. 1922. Notes on the Neotropical Epipaschiinae with descriptions of new genera and species: Proc. Ent. Soc. Wash., 24: 208-241. 1923. New species of Notodontidae from South America in the Carnegie Museum: Ann. Carnegie Mus., 15:80—90. 1923. New species of American Geometridae in the United States National Museum: Insec. Inscit. Mens., 11:149-167. 1923. Galapagos Heterocera with descriptions of new species: Zoologica, 5 (2): 23-48. 1923. (With T. D. A. Cockerell). Three new forms of Rhopalocera from Colombia and a new Geometrid moth from Madeira: Proc. Ent. Soc. Wash., 25: 162-164. 1923. A new genus and species of moth of economic interest in the United States National Museum: Proc. Ent. Soc. Wash., 25:164. 1924. New species of moths in the United States National Museum: Proc. U.S. Nat. Mus., 65 (2520): 1-74. 1924. New species of Pyralidae of the subfamily Nymphulinae from Tropical America: Proc. Ent. Soc. Wash., 26:93-130. 1924. A new moth injurious to cocoanut palm (Limacodidae): Proc. Ent. Soc. Wash., 26:180. 1924. A new moth of the subfamily Phycitinae: Proc. Ent. Soc. Wash., 26:196. 1925. Two new Saturnids from South America: Ent. News, 37: 25-26. 1925. New species of Epipaschiinae in the Carnegie and U. S. National Museums: Ann. Carnegie Mus., 16:9-48. 1925. (With W. H. Holland). The Epipaschiinae of the Western Hemis- phere; a synonymic catalog of the species hitherto described, with figures of many, which have not heretofore been depicted: Ann. Carnegie Mus., 16:49-130. 1926. A new satyrid from China: Proc. Ent. Soc. Wash., 28:218. 1927. Revision of Lymantriidae: Seitz, Gross-Schmetterlinge der Erde, 6:536-564. 1927. New species of Pyraustinae from the Philippine Islands: Philipp. Journ.) Sei., 34> 313-327. 1927. New species of Lepidoptera from South America: Proc. Ent. Soc. Wash., 29: 73-82. / 1927. New species of Heterocera from Central and South America: Proc. Ent. Soc. Wash., 29: 101-111. 1928. New moths of the family Cearuridae (Notodontidae) in the United States National Museum: Proc. U. S. Nat. Mus., 73 (2740):1—90. 1928. New species of Lepidoptera in the United States National Museum: Proc. Ent. Soc. Wash., 30:46-58. 1928. Revision of American Perophoridae: Seitz, Gross-Schmetterlinge der Erde, 6:635-674. 1929. A new species of Danaidae from the Philippine Island, in the United States National Museum: Proc. Ent. Soc. Wash., 31:20. 1929. 1929! 1932. 1932. 932. 1933. 1933. 1934. 1936. 1937. 1937. 1938. 1989: 1939: 1940. 1940. 1940. 1940. PROC. ENT. SOC. WASH., VOL. 44, NO. 9, DEC., 1942 195 New species of Heterocera from Southern Brazil: Proc. Ent. Soc. Wash., 31:45-61. (With Draudt). Revision of American Bombycidae: Seitz, Gross- Schmetterlinge der Erde: 6:675-711. A new form of Hyloicus discovered in Ecuador by W. Judson Coxey: Journ. N. Y. Ent. Soc., 40:375. A new moth from Peru (Syssphingidae, antea Saturniidae): Ent. News, 43: 155-156. New species of Sphingidae and Saturniidae in the U. S. National Museum: Journ. Wash. Acad. Sci., 22:137-148. New species of Heterocera in the National Museum, I: Ann. & Mag. N. H-, (0) 11: 566-587. New species of Heterocera in the National Museum, II: Ann. & Mag. N. H., (10) 12: 368-387. New species of Heterocera from Tropical America, 1V: Ann. & Mag. N: H.,.(10) 114:79-115. New species of Lasiocampidae from Neotropical countries: Ann. & Mag. N. H., (10) 17: 47-66, 192-210. New species of moths of the family Notodontidae in the United States National Museum: Proc. U. S. Nat. Mus., 84 (3026): 563-584. Revision of H. G. Dyar’s Limacodidae and Cossidae of America: Seitz, Macrolepidoptera of the World (English ed.), Fauna Ameri- cana, 6:1113-1136, 1264-1272. New species of American Heterocera in the United States National Museum: Ann. & Mag. N. H., (11) 2:504-517. New Neotropical Lepidoptera of the family Notodontidae; Ann. Carnegie Mus., 27:321-348. New species of moths of the families Notodontidae and Bombycidae in the United States National Museum: Proc. U. S. Nat. Mus., 86 (3063): 543-561. New species of heterocerous moths in the United States National Museum: Proc. U.S. Nat. Mus., 89 (3102): 497-511. New species of British Guiana Heterocera: Zoologica, 24 (1): 83-88. Insects of Porto Rico and the Virgin Islands—moths of the family Noctuidae: Sci. Surv. P. R. Virgin Is., 12 (2):177-290. Insects of Porto Rico and the Virgin Islands—moths of the families Geometridae and Pyralididae: Sci. Surv. P. R. & Virgin Is., 12 (3): 291-417. —Caru Heinricu and E. A Cuapin. 196 PROC. ENT. SOC. WASH., VOL. 44, NO. 9, DEC., 1942 ANOPHELES CLARKI, A NEW SPECIES OF NYSSORHYNCHUS OF WIDE DISTRIBUTION IN SOUTH AMERICA. (DIPTERA: CULICIDAE). By W. H. W. Komp,! Senior Medical Entomologist, U. S. Public Health Service. The observations of many workers in South America, par- ticularly those of Gabaldon (1, 2), Ayroza Galvado (3), and Rozeboom and Gabaldon (4), have shown that the species of Anopheles of the subgenus Nyssorhynchus are much more numerous than has hitherto been suspected. ‘The purpose of this paper is two-fold, first, to describe a new species of this complex, and second, to re-emphasize the necessity for careful systematic work in separating the many closely similar species of this subgenus. The description of the new species is based on material received from several widely separated localities, indicating either a wide over-all distribution of the species, or the exist- ence of peculiar ecological conditions which favor its propaga- tion. Many years ago a single male was obtained from Bahia, State of Bahia, Brazil, through the kindness of Dr. Mark F. Boyd of the Rockefeller Foundation, unfortunately without data as to time of collection. Four males and four females were received from Dr. Carlos A. Alvarado, Director of the anti-malaria campaign in northern Argentina, from Monteros, which is a town of about 5,000 lying south of Tucuman, the capital of the province of that name, in northern Argentina. Two males of this species, which were sent for identification, were obtained through the kindness of Dr. O. R. Causey, at the time with the Rockefeller Foundation in Fortaleza, Ceara, Brazil, which were collected in Guaramiray, Ceara. and Maceio, Alagoas, Brazil, respectively. ‘These were labeled ““oswaldoi?”’. Lastly, a single male terminalia of the new species was found in the slide collection of the late F. M. Root, at the School of Hygiene and Public Health of Johns Hopkins University. The slide is labeled “‘4. tarstmaculatus, ’’ Con- cepcion, Argentina. Dr. N. C. Davis.”” This slide has three male terminalia mounted under one cover-glass. ‘The termi- nalia farthest from the label are those of 4. clarki. Concep- cion is a town some miles south of Monteros, in the province of Tucuman, Argentina. The adult females from Monteros, Argentina, are apparently very similar in appearance to most of the other species of the series tarstmaculatus of Edwards (5). ‘The males are likewise indistinguishable from other members of this series, except on the basis of the terminalia. The short, straight, truncate, ' From the Gorgas Memorial Laboratory, Panama City, Rep. de Panama. PROC. ENT. SOC. WASH., VOL. 44, NO. 9, DEC., 1942 197 heavily sclerotized mesosome of the terminalia of this species is quite distinct from that of any other known species, and so far is the best means of distinguishing it from its congeners. It is hoped that more abundant material may be obtained from South America, so that all stages of this interesting, widespread and hitherto overlooked species may be described. Description of Anopheles (Nyssorhynchus) clarki, new species. (Here described.) Adult female: Of the usual facies of the series tarsimaculatus of Edwards The palpi have the last two segments white, with narrow black rings at the apex and base of the penultimate segment, and a white ring at the apex of the ante-penultimate segment. A few white scales are mixed with the dark brown scales of the antepenultimate segment, and there is an indistinct white ring at the joint between the antepenultimate segment and the next basal segment. ‘The mesonotum has three dark spots in the integument, two on each side behind the lateral fossae, and one larger spot covering the antescutellar space. The dorsum of the abdomen is clothed with creamy scales, more numerous along the median line, and there are prominent lateral scale tufts on the second to sixth segments. The cerci are clothed with brown and white scales, the white scales predominating. The fore legs have white apical bands on the first, second, and third tarsal segments, broadest on the third segment. The fourth and fifth segments are alldark. The mid legs are likewise with white rings on the first, second, and third tarsal segments, much narrower than on the fore legs. The first hind tarsal segment is dark, with a narrow white apical ring. The second hind tarsal segment is variable in amount of white, specimens from Argen- tina having this segment about 25 per cent black, while the two specimens from northeastern Brazil have the black portion much reduced, to about one-sixth the length of the segment, therein approaching the condition found in 4. oswaldo1. The third and fourth hind tarsal segments are all white, and the fifth segment is white with a narrow black basal ring. On all legs there is a small white spot at the tip of the femora, and a narrow white apical ring on the tibiae. Wings. Of the usual Nyssorhynchus facies, with no apparent distinguish- ing features. Spot B 2 of Root is larger than the preceding black spot, and the light wing scales vary in color from white to creamy. MALE: With the coloration of the female, the wing-markings similar, but with the scaling much reduced. Male terminalia: Of the usual Nyssorhynchus type, with fused ventral lobes of the claspette produced to form two long hairy basal lobules (Fig. 3). The terminal hairs of these lobules are long, sometimes recurving upwards over the lobules, as in 4. oswaldot. ‘The hairs on the median portion of the lobules are shorter, and show a tendency to radiate. On the inner aspect, between the lobules, the long hairs are seemingly considerably more dense, and recurve upwards toward the preapical plate. These inner long hairs are curved, not straight as in the similar hairs of 4. rangeli Gabaldon, 198 PROC. ENT. SOC. WASH., VOL. 44, NO. 9, DEC., 1942 Fig. 3, Claspette lobes of 4. clarkt. et al., and form a less dense tuft. ‘The preapical plate is very large and nearly circular. The apex of the fused claspette lobes is rugose, with long laterally-directed hairs on the sides. The apex is somewhat narrowed, not being as wide as the basal lobules. The mesosome (Figs. 1 and 2) is very characteristic, and forms the most easily accessible character to differentiate the species. "The mesosome is short, slightly curved, incompletely tubular, and the sides (lateral faces) are nearly straight, and very heavily sclerotized. A cross-section of the mesosome below the tip would be approximately square. The apex of the mesosome departs greatly from the appearance as found in the other species of Nyssorhynchus, as it is very short, almost square, and blunt. In the great majority of the other species, the apex of the mesosome is somewhat spoon-shaped, with a rounded tip. In 4. clarki the apex of the mesosome | PROC. ENT. SOC. WASH., VOL. 44, NO. 9, DEC., 1942 199 Fig. 1, Mesosome of A. clarki, n. sp. Fig. 2, Lateral view of mesosome of 4. clarki, showing short, truncate tip. appears to be beveled off, giving a truncate appearance, and is heavily sclerotized (Fig. 4). The mesosome is entirely dissimilar to that of 4. goeldi1 Rozeboom and Gabaldon, in which the apex is short and rounded, and in which small spinelike mesosomal leaflets are usually present. Larvae.—The larvae of A. clarki will not be described at this time, as the material from Monteros, Argentina, is not definitely known to be associated with the males. However, these larvae are similar to the others of the subgenus, resembling closely those of 4. oswaldoi observed in the Canal Zone. 200 PROC. ENT. SOC. WASH., VOL. 44, NO. 9, DEC., 1942 Fig. 4, Micrograph of mesosome of type male. Type.—One male, the terminalia dissected and mounted on a separate slide. Type locality: Monteros, Prov. of Tucuman, Rep. of Argentina. Date of collection: June, 1940. Obtained through the courtesy of Dr. C. A. Alvarado. Type No. 56476 deposited in the U.S. National Museum. Paratypes: 1 male, 1 female, from Monteros, Argentina, July 1940. 1 female from Monteros, Argentina, June 1940. Additional material deposited in the U.S. National Museum, Washington, D. C.: 1 male from Guaramiray, Ceara, Brazil, through Dr. O. R. Causey (no date of collection). There is also one male terminalia from Concepcion, Tucuman, Argen- tina, N. C. Davis, collector (no date), in the collection of the late F. M. Root, now in the School of Hygiene and Public Health of Johns Hopkins University Baltimore, Maryland, U. S. A. The writer has retained the remainder of the ma- terial mentioned in his private collection. He takes pleasure in naming the new species in honor of Dr. H. C. Clark, Direc- tor of Gorgas Memorial Laboratory, Panama, Republic of PROC. ENT. SOC. WASH., VOL. 44, NO. 9, DEC., 1942 201 Panama, with whom his long association has been pleasant and profitable. Discussion. The new species here described is a distinct species of the subgenus Nyssorhynchus of Anopheles. It is apparently of widespread distribution in South America, material being available from two localities in northwestern Argentina, and from three localities in northeastern Brazil. All studies of the vector ability, biology, and ecology of the Nyssorhynchus species in these and other areas of South America should be reconsidered in the light of the presence of this new species. The excellent work of N. C. Davis on the variability of the species of Nyssorhynchus is invalidated to a large degree, owing to his failure to recognize accurately the species with which he dealt. Present conclusions as to the vector ability of the numerous species “lumped” under the name ‘“‘tarsimaculatus” by uncritical workers must be revali- dated, taking into consideration the possible role of 4. clark. The discovery of this new species again calls attention to a fact which should now be well known, but is often neglected by field workers. Any investigation of malaria and its Anopheline vectors, which pretends to have scientific accuracy, must have as its firm basis a sound knowledge of Anopheline taxonomy. BIBLIOGRAPHY. 1. Gasatpon, A., Descripcion de Anopheles (Nyssorhynchus) niifiez-tovari, y Consideraciones sobre una sub-division del grupo Nyssorhynchus (Diptera, Culicidae). Publ. de la Div. de Malarioligia, No. 5 Minist. de San. y Assit. Social (de Venezuela), Caracas, pp. 3-7, 1940. 2. Gasatpon, A., Cova-Garcia, and Lopez. Anopheles (Nyssorhynchus) rangeli, una nueva especie de la sub-serie oswaldoi (Diptera, Culicidae) de amplia distribucion en Venezuela. Ibid., pp. 9-23, 1940. 3. Gatvao, A. L. A., Contribuicdo ao Conhecimento dos Anofelinos de Grupo Nyssorhynchus de Sao Paulo e Regioes Vizinhas. Arq. de Zool. do Est. de S. Paulo. Tomo XXIV, Rev. do Mus. Paulista Brazil) Vol. 1, Artigo 14, 399-484, 1940. 4. Rozesoom, L. E., and Gabaldon, A. A Summary of the “Tarsimacu- latus’’ Complex of Anopheles (Diptera, Culicidae). Amer. Jour. Hyg., 33, 3, Sec. C, pp. 88-100, May, 1941 5. Epwarps, F. W., Genera Insectorum, Diptera, Culicidae. Fascicle 194, P. Wytsman, 1932. 202 PROC. ENT. SOC. WASH., VOL. 44, NO. 9, DEC., 1942 NOTES ON CERTAIN SPECIES OF BEMBICIDS. By J. B. Parker, Professor of Biology (retired), Catholic University of America, Washington, D. C. In my paper dealing with the tribes Stizini and Bembicini, published in 1929, in Vol. 75 of the Proceedings of the U. S. National Museum, among other new species described therein were two from South America, Selman angustus and Bicyrtes bradleyi. Each of these was described from a single female and the former species was designated as the type of the genus Selman. Since that paper was published two males and two females of B. bradleyi and a male of S. angustus have been sent to me by Mr. Richard Dow from the Museum of Comparative Zoology at Cambridge, Mass., for study and description. Bicyrtes bradleyi Parker. Allotype (male).—Black: labrum; clypeus; mandibles, except tips; lower part of frons, continued upward in a stripe on the midline that widens and ends at the anterior ocellar cicatrice; narrow posterior orbits; tubercles, continuous with broad fascia on posterior border of pronotum and also with a broad spot covering almost the whole side of the prothorax; pair of ovate discal marks on scutum; broad lateral lines on scutum not reaching anterior margin; broad lateral spots on scutellum not reaching posterior border of sclerite; fascia on metanotum; the entire sides of propodeum; jarge anterior spot and small posterior spot on mesopleura; prominent jnterrupted fascia on tergites 1-5; continuous fascia narrowed at midline on tergite 6; apical line on sternites, most evident on sternites 2 and 3; spot on coxae; femora distally and almost entirely on lower surface; tibiae, except narrow line below; and tarsi, except dusky spots below on all and apical segment of hind pair, yellow. The flagellum is marked with ferruginous below and all segments are plain, lacking specific modifications of any kind. ‘The second sternite bears a prominent median process; the sixth is plain. ‘The seventh tergite bears a pair of prominent lateral spines (Figs. 1, 2) while the seventh sternite is of normal form, ending in three spines. ‘The posterior surface and the lateral angles of the propodeum are the same in form as those of the type. ‘The wings are clear. ‘The pubescence is short and sparse, in fact, almost lacking. ‘The form of the spatha of the genitalia (Fig. 3) differs radically from that characterizing the males of this genus. This character, the form of the seventh tergite, and the form of the propodeum, taken together, distinguish this species from all others described thus far for this genus. Length 15 mm. i I have before me at this time, in addition to the allotype, a male and two females, all of which bear the label “‘Cordova, Argent. Davis.’’ Allotype in the Museum of Comparative Zoology, Cambridge, Mass. PROC. ENT. SOC. WASH., VOL. 44, NO. 9, DEC., 1942 203 As was pointed out in the description of the type of Bicyrtes bradleyi, the character of the posterior-lateral angles of the propodeum and of its posterior surface differs from the normal for species of this genus. In this species the posterior-lateral angles of the propodeum are decidedly rounded and the pos- terior surface is, therefore, not so markedly concave. The difference in form of the distal part of the spatha of the male genitalia of bradleyi from that of other species of the genus is even more marked. Despite these differences, however, the fact that the ocelli, the mouth parts, and the general habitus of the species are normal, would seem to warrant its retention in the genus Bicyrtes. Perhaps when we know more about the life-history and habits of this species it may be necessary to make it the type of a new genus. Selman angustus Parker. Allotype (male).—Black: labrum; mandibles, except tips; clypeus; frons below and between antennae; broad anterior orbits shortened above; scape, except broad line on inner side; posterior orbits, narrowed above; broad fascia on posterior border of prothorax, including tubercles and united with broad lateral spot on either side; dorsal anterior median spot on prothorax; pair of ovate discai spots on scutum; lateral lines on scutum; broad fascia on scutellum; fascia on metanotum; curved fascia on dorsum of propodeum, interrupted at midline on posterior surface; lateral angles of propodeum and broad vertical line on anterior lateral surface; metapleura and meso- pleura almost entirely; large lateral spots and pair of small, narrow, widely separated discal spots on first tergite; fasciae, interrupted at midline dor- sally on tergites 2-6, the more anterior ones narrowed toward the midline; pair of apical spots on tergite 7; fasciae, narrowed at midline on sternites 2-5; legs, except more or less of coxae and trochanters, a black line above on all femora, and black spot below on middle tibia, yellow. The flagellum, of which the proximal segments and the tip of the terminal segment are testaceous, is without spines or pits (Fig. 5) although segments 6-12 below show specialized areas. As in the female, the maxillary palpus is composed of six segments and the labial of four. The middle femur below at the distal end bears a circular notch and short spine (Fig. 6). Wings are hyaline, narrow, and relatively short as on the type. The second sternite along the median line is somewhat swollen and distinctly carinate. The sixth sternite is plain. The seventh tergite is roundly emarginate at the apex and bears a pair of lateral spines (Fig. 7). The eighth sternite ends in a spear-pointed spine (Fig. 8). The pubescence is very sparse, almost lacking. Length 18 mm. Described from a single specimen bearing the label “Cordova Argent. Davis.” Allotype in the Museum of Comparative Zoology, Cambridge, Mass. The genus Selman, for which the female of S. angustus Parker, was designated as the type, is closely related to the 204 PROC. ENT. SOC. WASH., VOL. 44, NO. 9, DEC., 1942 genus Stictia. It differs from Stictia in having the ocelli func- tional, or at least without complete obliteration of the lenses; in having the middle of the vertex elevated instead of de- pressed; in having the wings relatively shorter; and in having the body slender instead of robust. The male, like the male of Stictia, has a notch and tooth at the distal end of the femur, but it lacks the specialized area found on the sixth sternite of the male of Stictia and the modification of the second sternite is also different. Genital structures as in Figs 9-and 10. Bembix insularis (Dahlbom). The discussion of this species in my paper referred to above was based wholly upon my study of specimens from Jamaica. Since the publication of that paper I have had opportunity to study specimens of Bembix from Cuba and Haiti. Dahlbom described his species, which he placed in the genus Monedula, from two females from the Virgin Islands. Cresson’s speci- mens came from Cuba as did those studied by Handlirsch. Handlirsch states, however, that he had access also to Dahl- bom’s types. Since Dahlbom’s material did not include a male it follows that Handlirsch based his figures and descrip- tion of the male of this species on specimens from Cuba. Now, the males before me from Cuba show the characters ascribed to this species by Handlirsch in his figures of the anten- nae and the male genitalia. ‘The stipites of males before me from Cuba, as shown in figs. 11 and 12, closely resemble those shown in Handlirsch’s illustration of the genitalia of this species. The genitalia of males from Jamaica (Figs. 13, 14) differ somewhat in form from those of Cuba while showing a similar pattern. Since, however, all these specimensimare quite similar in all other respects it seems best to regard them as variants of a single species. ‘The fact that all these males bear a pair of lateral processes on the sixth sternite, a character that neither Handlirsch nor Cresson mentions in their discus- sions of znsularis, indicates that these specimens belongs to a single species and at the same time raises the question as to whether we are here dealing with the insularis of Dahlbom. Zyzzyx chilensis (Eschscholz). In the same paper referred to above I erected a new genus, Therapon, based upon the species, Stictia chilensis Eschscholz, which was designated as the type of the genus. Unfortunately the generic term, Therapon, was preoccupied in the field of Ichthyology. In his paper entitled ““The Generic Names of the Sphecoid Wasps and Their Type Species”, published in the Memoirs of the American Entomological Society, No. 9, 1937, page 68, Pate corrects this error and proposes for Therapon Parker the generic term Zyzzyx, sin PROC. ENT. SOC. WASH., VOL. 44, NO. 9, DEC., 1942 205 Bembix tenebrosa Parker and Bembix refuscata Parker. In his paper, ‘““The Sphegidae of South Africa,” Part XV, published in 1931 in the Annals of the Transvaal Museum, Vol. XIV, Part II, Dr. George Arnold takes exception to the validity of some of the new species described in my paper. On page 214 of his paper Dr. Arnold reduces my species, Bembix tenebrosa, to synonomy with Bembix diversipennis Smith and on the following page he does the same thing for my Bembix refuscata. Had Dr. Arnold been a bit more thorough in examining my paper he would not have made this blunder. For some unexplained reason the figures (figs. 201-203) accompanying the description of tenebrosa were not cited in connection with the text of the description of this species and, I take it, Dr. Arnold failed to see them. Fig. 201 represents the male genitalia of B. tenebrosa and fig. 170 those of B. refuscata. If it is maintained that genitalia so widely diverg- ent in form as are these, are nevertheless representative of a single species, then the use of genital characters in the determi- nation of species might as well be thrown overboard entirely. That we have here two distinct species is beyond question. From what Dr. Arnold states in his discussion of my tene- brosa | am very much of the opinion that this form and his diversipennis var. Johnstont ‘Turner are one and the same species, and [I am further convinced that neither of them is synonymous with B. diversipennis Smith. Dr. Arnold states that in making his description of the male of diversipennts Smith he ‘‘omitted to mention” the black spots on the under- side of the anterior tibiae, which leads one to suspect that he did not know they were there until he read my description of tenebrosa. Smith in his description of diversipennis does not mention these black spots and neither does Handlirsch. It is quite possible that Smith might have overlooked them but if these spots had been present on the specimens described by Handlirsch as diverstpennis Smith, | am convinced that he would have discovered them and reported their presence. I have invariably found Handlirsch’s figures exact and reliable and his figure of the flagellum of diversipennis Smith does not fit the flagellum of my tenebrosa (fig. 202). Neither does the figure of the male genitalia of diversipennis as given by Hand- lirsch fit the male genitalia of tenebrosa. There is no doubt in my mind whatsoever that the diversipennis of Handlirsch and my tenebrosa are distinct species, and that my refuscata is distinct from both of them. Furthermore it is my conviction that Turner’s Bembix johnstont is a valid species and that Arnold’s variety Johnstont and my tenebrosa must be reduced to synonomy. 206 PROC. ENT. SOC. WASH., VOL. 44, NO. 9, DEC., 1942 Bembix recurva Parker. In commenting on my Bembix recurva Parker Dr. Arnold says ‘‘it is probable that it is a synonym of ugandensis Turner. Until the two types can be compared, it is perhaps best to treat recurva Parker as a synonym.” Just why is it best to do this? To reduce a newly described species to synonomy on nothing better than an opinion based on a mere probability is a procedure that has little to commend it. Bembix opinabilis Parker. Dr. Arnold’s sinking of my species B. opinabilis as a syno- nym of B. stadelmanni Hdl. is wholly unwarranted. The statement by Dr. Arnold that “the figures in Parker’s work of the seventh tergite and genitalia agree very well with those in Handlirsch’s monograph”’ warrants the assumption that Dr. Arnold did not trouble himse f to make a careful comparison of my figures with those given by Handlirsch. The genital stipites of the two species are fundamentally different. The inner border of the stipes of stadelmanni as shown by Hand- lirsch is entire, without incision or emargination, whereas that of opinabilis is strongly emarginate toward the apex. On the lateral border of the seventh tergite of each species there is a slight but distinct lateral ridge. On stadelmanni this ridge is continuous with the apical portion of the lateral margin of the tergite, whereas on opinabilis it is continuous with the basal portion of the margin. Here we have a funda- mental morphological difference, which Dr. Arnold either overlooked or chose to disregard, a difference that cannot be explained away on the ground of variation within a species. Before describing opinabilis | spent hours in an endeavor to make this form fit stadelmanni as described and figured by Handlirsch, but the longer I pursued my study the firmer became my conviction that I was here dealing with a different species. Bembix stevensoni Parker. In his curt remarks concerning my species, B. stevensoni Dr. Arnold makes it quite clear that he is a bit superficial in evalu- ating characteristics. Along with these comments I am sub- mitting a camera lucida illustration of the genital stipes of B. fuscipennis Lep. (fig. 15) and of B. stevensoni Parker (fig. 16) drawn at the same angle and to the same scale of magnifi- cation. The illustrations of the seventh tergites of the two species (figs. 17, 18) were drawn under the same conditions and from the same specimens. In the case of fuscipennis the specimen used in making the illustration was identified by R. H, R. Stevenson, and in the case of stevensont the specimen PROC. ENT. SOC, WASH., VOL. 44 PLATE 18 208 .. PROC. ENT. SOC. WASH., VOL. 44, NO. 9, DEC., 1942 used was identified by Arnold himself as identical with my species but referred by him to fuscipennis. ‘The illustration of the stipes of fuscipennis is in all essentials identical with that given for this species by Handlirsch, and the illustration of the stipes of stevensoni is the same as that accompanying my description of the species, save that in the present illus- tration the view is latero-dorsal whereas in the original illus- tration the view is strictly dorsal. The difference in the pattern of the genital stipites of these two forms is too great to be ignored orto be explained on the ground of variation within a species. When we add to this the difference in the develop- ment of the seventh tergites, and the difference of the infuma- tion of the wings we have here a combination of characteristics that warrant the separation of these two forms as distinct species. Bembix laeta Parker. Whether my species, B. laeta, is synonymous with a pre- viously described species narrows down to a matter of opinion. Dr. Arnold insists that it 1s synonymous with B. intermedia Dahlb. Handlirsch regards B. intermedia Dahlb. as synony- mous with B. olivata Dahlb. In his discussion of B. olivata Handlirsch remarks that this species (ol/ivata) is as much like B. mediterranea as one egg is like another. Before making my description of B. laeta I carefully compared my specimen with a number of others in the collection of the’ U. S:°N: Museum identified as B. olivata Dahlb. by other entomologists and also with a number of others similarly identified as B. mediterranea Hdl. I also checked against Handlirsch’s de- scriptions, but I found myself unable to assign my specimen with certainty to any of those species. In a situation such as this I could follow any one of three courses: 1) I could send the specimen back to Berlin unidentified; 2) I could assign it to one of the above species with the serious risk of returning to Berlin a misidentified specimen; 3) I could describe it as new. Ichose the last course, realizing that when a new species of Bembix is based upon a female, unless the specimen shows some striking morphological character, there is always a risk of adding to synonym. In Arnold’s opinion I have done so, but he has not seen the specimen on which I based my descrip- tion. I have; that is the difference. EXPLANATION OF PuiaTEeE 18. Fig. 1-2. Bicyrtes bradleyi Parker. Seventh tergite. Fig. 3 Bicyrtes bradleyi Parker. Spatha. Fig. 4 Bicyrtes bradleyi Parker. Stipes. Fig. 5 Selman angustus Parker. Antenna. Fig. 6 Selman angustus Parker. Femur of leg II. Fig. 7 Selman angustus Parker. Seventh tergite. he ee PROC. ENT. SOC. WASH., VOL. 44, NO. 9, DEC., 1942 209 Fig. 8 Selman angustus Parker. Eighth . sternite Fig. 9 Selman angustus Parker. Stipes. Fig. 10 Selman angustus Parker. Spatha. Fig. 11 Bembix insularis (Dahlbom) Stipes (Cuban specimen). Fig. 12 Bembix insularis (Bahlbom) 5 hae Cape ab ) Fig. 13 Bembix insularis (Bahlbom) ** (Jamaican specimen). Fig. 14 Bembix insularis (Bahlbom) or ( €¢ << ) Fig. 15 Bembix fuscipennis Lep. Fig. 16 Bembix stevensoni Parker Fig. 17 Bembix stevensoni Parker Seventh tergite. Fig. 18 Bembix fuscipennis Lep. ef es A NEW NORTH AMERICAN SOLENOPSIS (DIPLORHOPTRUM) (HYMENOPTERA: FORMICIDAE). By Marton R. Smiru, U. S. Department of Agriculture, Bureau of Entomology and Plant Quarantine. The ant here described is so distinct f-om the 14 previously known forms of Solenopsis subgenus Diplorhoptrum (Mayr) that it should be recognized immediately. Since the North American ants belonging to this subgenus have not been treated in a comprehensive review and since at least some of them are exceedingly difficult to classify, a key for the identi- fication of the workers of all the described species is presented. No attempt has been made to treat the following subspecies or varieties because types of none of them are available to me: S. (D.) texana subsp. carolinensis Forel, texana subsp. truncorum Forel, texana var. catalinae Wheeler, molesta var. castanea Wheeler, molesta var. validiuscula Emery, and picta var. moerens Wheeler. I have seen types of pilosula Wheeler, krockowt Wheeler, and picta Emery, but I have not been able to examine types or authentically determined specimens of salina Wheeler, rosella Kennedy, and texana Emery. ‘The characters used in placing salina and rosella in the key have been taken from the original descriptions and those for texana from Wheeler’s brief characterization (Amer. Mus. Nat. Hist. Bul. 24: 531, 1908). Wheeler was probably in aposition to judge the distinction between texana and molesta since he lived in Texas for many years and doubtless saw specimens of texana On many occasions. The species of Diplorhoptrum are of economic importance. The common molesta (Say) is well known for its predacious habits, which include the destruction of both beneficial and injurious insects. ‘The workers of this species also attack the seeds of certain germinating grains, infest houses, destroy young birds at the time of hatching, and attend honeydew- 210 PROC. ENT. SOC. WASH., VOL. 44, NO. 9, DEC., 1942 excreting, subterranean aphids and mealybugs. Their exact relationship with the aphids and mealybugs is not fully known and may be more important than is realized. Solenopsis (Diplorhoptrum) longiceps, new species. Worker.—Length 1.2-1.3 mm. Head, not including mandibles, approximately one and one-third times as long as broad, subrectangular, with very gently convex, subparallel sides, and distinctly emarginate posterior border. Antennal scape, exclusive of pedicel, approximately three-fifths as long as head. Antennal club remark- ably large, at least one and one-third times as long as remainder of funi- culus; first funicular segment at least as long as combined lengths of the next four segments; last antennal segment three or more times as long as the preceding segment. Clypeus strongly projecting, the anterior border with two prominent teeth and two very much smaller and indistinct lateral teeth. Mandible with four teeth. Eye very minute, with only one or two distinct facets. Thorax, not including the pronotal collar, approxi- mately as long as head, with rounded humeri, and a distinct mesoepinotal constriction. Epinotum, in profile, rounded, the base and declivity merg- ing into each other without any indication of an angle. Petiolar node, in profile, larger and higher than node of postpetiole, with abruptly declivous anterior surface and more convex posterior surface, peduncle with a very small ventral tooth; summit of petiolar node approximately one and one-half times as wide as long. Summit of postpetiolar node of about the same width as that of petiolar node but differently shaped, appearing subglobular, but distinctly broader than long and also broader posteriorly than anteriorly. Gaster elongate, with weakly convex, subparallel sides and rather distinct basal angles. Head, except for the median longitudinal area between the clypeus and the posterior border of the head, with distinct but well scattered piligerous punctures. Body, especially the head, and appendages with rather abundant, sub- erect to erect hairs. Color a sordid light brown or yellowish browh. Type localitty—Hamilton County, Tenn., 4-24-39, W. Ey Turner; Turner No. 13795. The holotype and 33 paratype specimens have been placed in the United States National Museum under U. S. N. M. No. 56344. To this species I have also referred 16 specimens collected in Lincoln County, Miss., on July 14, 1936, by W. F. Turner, of the Bureau of Entomology and Plant Quarantine. ‘These came from the soil of a peach orchard and bear Turner No. 351. This minute ant is characterized by its remarkably long, subparallel sided head; extraordinarily large antennal club; minute eyes; short but rather abundant pilosity; and the somewhat subglobular postpetiole, which is of approximately the same width as the petiole. PROC. ENT. SOC. WASH., VOL. 44, NO. 9, DEC., 1942 211 Key ror Spreciric IDENTIFICATION oF Norra AMERICAN SOLENOPSIS (DipLorHoptRuM) (WorKeErRs ONLY). 1. Head remarkably slender, with subparallel sides; eyes minute, with only 1 or 2 distinct facets; (antennal club unusually large, at least one and one-third times as long as remainder of funi- culus; length 1.2-1.3 mm.; post-petiole appearing subglobular from above). Tennessee, Mississippi... .longiceps, new species. Shape of head and size of eye not as described above 2. Postpetiole appearing subglobular from above. Postpetiole not appearing subglobular from above. . Al se 3. Head robust, subquadrate, its dorsal surface with coarse, stil ee ous punctures; color varying from whitish to a sordid pale yellow, or yellow; length 1.8-2 mm. North Carolina, South Carolina, Georgia, Alabama, Mississippi, and Louisiana...... pergandei Forel. Head distinctly longer than broad, its dorsal surface without such numerous or coarse punctures; color deep yellow; length [k8—28mime southwesternelvexasa sees see ss. salina Wheeler. 4. Head and gaster deep brown and usually much darker than thorax; ~ (punctures on head sparse, inconspicuous; antennal club large, at least one and one-third times as long as remainder of funicu- lus; body slender and of a Monomorium appearance; length 1.55-1.66 mm.); petiole, from above, with a narrow, compressed appearance, the sides of the node not noticeably extended (laterally) over the peduncle. Florida............ picta Emery. Color of body and shape of petiole not as above.................. 5. Epinotum, in profile, with at least the basal half flattened; length OTE AiO eee ee ae hea tore, OE ROS Gibio, Woe bd ee Epinotum im protle, rounded: length I—IS mim.) 224... ......26e- 6. Punctures on head exceedingly coarse; body very robust; color deep yellow; (basal surface of epinotum much flattened); length 2-2.7 mm. Southwestern Texas..............ptlosula Wheeler. Punctures on head not exceedingly coarse; body less robust; color yellow; (antennal club slender, as long as or longer than remain- der of funiculus); length 2.25-2.5 mm. Southern New Mexico.. krockowt Wheeler. 7. Postpetiole, from above, noticeably wider than petiole; (the node very distinctly wider anteriorly than posteriorly); length 1.5— Ute gnaNiT Th chase dus gordon eee rh cect © Cugeek Or VOTO IGG a cae ee i Postpetiole scarcely wider than petiole; (color pale yellow); length Tez iemairaaps exais)) feet oavecaasieistae cus nate edahe ey ahs texana Kmery. 8. Funicular segments 2, 3, and 4 of approximately the same length; body length 1.8 mm. Distributed over most of the United States but especially common in the eastern half........ molesta (Say) Funicular segment 2 approximately as long as the combined length of segments 3 and 4; body length 1.75 mm. Ontario, Ganadarte erie crat aie te ert cha ators Sie Ass i ah rosella Kennedy. WN 212 PROC. ENT. SOC. WASH., VOL. 44, NO. 9, DEC., 1942 MINUTES OF THE 531ST REGULAR MEETING OF THE ENTO- MOLOGICAL SOCIETY OF WASHINGTON, NOVEMBER 5, 1942. The 53lst regular meeting of the Society was held at 8 p. m., Thursday, Nov. 5, 1942, in Room 43 of the National Museum. President Cory presided and 24 members and 20 visitors attended. In the absence of the Acting Record- ing Secretary, Dr. Alan Stone ascted a Recording Secretary and the minutes of the previous meeting were read and approved. Mr. Reece I. Sailer, Associate Entomologist, Bureau of Entomology and Plant Quarantine, Washington, D. C., was unamiously elected to membership in the Society. Mr. Charles C. Hill, Entomologist, Bureau of Entomology and Plant Quaran- tine, Beltsville, Md., was reinstated as a member of the Society by a unanimous vote. President Cory appointed a nominating committee, which consisted of R. A. Cushman, Chairman, and H. H. Richardson. The President spoke of the recent death of W. S. Abbott and appointed I. H. Siegler and L. J. Bottimer as a committee to prepare an obituary. The regular program consisted of two papers as follows: 1. Observations on Hawaiian Ecology, by Howard P. Barss, Office of Ex- periment Stations. Dr. Barss discussed the great concentration of diverse ecological factors in the Hawaiian Islands. He showed, by means of maps, the topography of Oahu, Maui and Hawaii and discussed the ecological factors that restricted the growing of certain crops to limited areas. The amounts of rainfall and sunlight show a great range over a comparatively small area; for instance on the island of Maui the rainfall varies from 8 to 10 inches at one location to 300 inches at another. Dr. Barss made particular mention of the Mediter- ranean fruit fly in coffee and star apples. (Secretary’s abstract) This talk was commented on by E. N. Cory and F. L. Campbell. 2. ‘Ticks and Disease, by Major C. B. Philip, Sanitary Corps, United States Army. Major Philip discussed the important role that ticks have played in disease transmission from early times and mentioned many of the diseases and the species of ticks that carry them. He showed a series of kodachrome slides of a number of species of ticks. (Secretary’s abstract) Major Philip’s talk was commented on by F. C. Bishopp and M. D. Leonard. The following visitors were introduced to the Society: C. C. Hill, Captain C. E. Peres, Lt. Irving Rappaport, L. S. Henderson, W. T. Haude, B. K. Pancoast, Max Day and M. D. Leonard. Adjournment at 10:00 p. m. W. H. AnpERson, Acting Recording Secretary. INDEX TO VOLUME 44 Aenictus mentu, n. sp. 40 Amphimallon majalis (Razoumowsky), third stage larva, description of, 111 Anochetus sudanicus, n. sp. 47. Anopheles clarki, n. sp. 196. Ant, apparently new, 59, Ants, new, from Anglo-Egyptian Sudan, 40. Anopheles albitarsis, and A. darlingi, Status of, 122. Antillormenis, n. gen., 157; A. flaviclavata, n. sp., 158; cachibonae, n. sp.; sancti- vincenti, n. sp., 159; Ilesia, n. gen., 160; I. anguillana, n. sp., 161; bene- volens, n. sp., 161; Ormenis jamai- censis, n. sp., 162. Apterygota, origin and classification of, 75. Bovine, Apam G., article by, 113. Brachycistidinae, new genus and species of, 65. Bucuanan, L. L., article by, 50. Causey, O. R.; Deane, L. M., and Sam- patio, Macuapo, article by, 122. Cerapachyine ants, males of 2 species, 62. Cerapachys (Parasyscia) davisi, n. sp., 64s Cerapachys (C:)) pigra, m. sp., 41; GC. sudonensis, n. sp., 42. Chrysops, from Panama, notes on, 1. Colocistis, n. gen., 65; C. pilosa, n. sp., 66. Corresponding Secretary, report of, 12. CrawForbd, J. C., article by, 140; 150. CusuHamn, R. A., article by, 54. Davis, ALonzo CLayTon, obituary, 34. Eppy, Gaines W., article by, 145. Empoasca, trap-light studies of, 69. Entomological Society of Washington, Minutes of 523rd regular meeting, 14; 524th meeting, 54; 525th meeting, 57; 526th meeting, 74; 527th meeting, 127; 528th meeting, 129; 529th meetings 183; 530th meeting, 186; 531st meeting, 214. Euponera (Mesoponera) dentis, n. sp., 43; E. (M.) flavopilosa, n. sp., 43. Ewing, H. E., article by, 75. Farrcuitp, G. B., article by, 1. Fennag, R. G., article by, 99; 155. Flatidae, West Indian, new genera and species, 155. Fouts, Rospert M., article by, 168. Gauan, A. B., article by, 8. Goniozus, new species from Oregon, 168; G. gallicola, n. sp., 168. Goon, Newe tt E., article by, 131. 213 Haemaphysalis leporis-palustris (Packard), seasonal history in Oklahoma, 145. Harmiston, F. C., and KnowtrTon, G. F., article by, 22. Hernricw, Cart, article by, 50; 189. Heterothrips, new on oak, 140; H. querci- cola, 140. Hippodamia, new species from Mexico; H. koebeiei, n. sp., 39. Idiogramma Foerster, synonymy of, 54. Ixodes dentatus Marx, gynandromorphism hay SG Kinnaridae, new or little Indian, 99. Komp, W. H. W., article by, 195. KromBein, Kart V., article by, 65. Leptogenys (L.) maxillosa (F. Smith), L. sericeus, n. sp., 46; africanus, n. Sp., 47. Leptothorax minutissimus, n. sp., 59. McGrecor, E. A., article by, 26. Merothrips Hood, new species from South America, 150; M. plaumanni, n. SDs mirus, n. sp., 152. Muscoid fly, parasitic, from Texas, 17. Odontocolon, new 180; O. poly- morphum n. sp., 180; O. canadensis (Provancher), new combination 182; albotibialis (Bradley), new combina- tion 182; aciculatus, new name 182. Opthalmopone berthoud; Forel, pubescens, n. sp., 42. Odontomerus Gravenhorst, new name for; with new species and notes, 179, Orasema sp., oviposition and early stages of, 142. Parker, H.L., article by, 142. Parker, J. B., article by, 205. Ponera ambigua, n. sp., 46. Prosotropis trinervosa, n. sp: LOU (Ps rubiginosa, n. sp., n. sp., 103. Psychophora, new from Hudson Bay Region, 50; P. suttoni, n. sp., 50. Quilessa n. gen., 103; Q. lutea, n. sp., 104; gladiolata, n. sp., 104; n. sp. 105. Red spider, common, taxonomic status of, 26. RHEINHARD, H. L., article by, 17. Sarcophaga austinana, n. sp., 17. Scuaus, Wix.1aM, obituary, 189. Smitru, Carrot N., article by, 52. West known nhame 102; marmorata, maculata, 214 PROC. ENT. SOC. WASH., Smitu, Marion R., articles by, 59; 62; 209. Solenopsis (D.) longiceps, n. sp., 210 Stenistomera, revaluation of genus with new subgenus and_ species 131; Stenistomera (Miochaeta) macrodac- tylayneesp. lo. Syntormon, three new, from western U. S. 22; S. kennedyi, n. sp., 23; utahensis, n. sp., 24; oregonensis, n. sp., 25. Tetrastichus bruchivorus, n. sp., 9. TimBERLAKE, P. H., article by, 39. Treasurer, report of for 1941, 11. VOL. 44, NO. 9, DEC., 1942 Twiningia, revision of in America north of Mexico, 169; T. fasciata, n. sp., 171;, permista, n. sp., 172; pulla, n. sp., 174; albacosta, n. sp., 174; grandis, n. sp., 175; acuta n. sp., 176; areolata, n. sp. 176; peticulata, n. sp. 178; rubrafusca, n. sp., 178. Vetch bruchid, chalcidoid parasite of, 8. Wess, Jessie Leg, obituary, 31. Weser, Neat A., article by, 40. WHEELER, Nancy H., article by, 69. © Xylocomesus Thatcher a curculionid, 50 Actual date of publication, Fanuary 5, 1943. 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Domestic shipments prepaid, foreign shipments f. 0. b. Washington. A new book “The North American Bees of the Genus Osmia” by Grace A. Sandhouse, issued as Memoir Number 1 of the Society, is now available. Postpaid to non-members and institutions.................... $3.00 Fo: members. OF the Society: 5.65 es $2.50 This is a revisionary study of the genus Osmia with keys for identification descriptions and distribution records for known N. American species. (Make checks, drafts, etc. payable to the Entomological Society of Washington.) F. M. WADLEY, Corresponding Secretary, Address: Bureau of Entomology and Plant Quarantine, Washington, D. C. x 5 he 1 ae a f r ¥ te 6 Ay id : pai vn i i pea aN anal ‘CARL AND = KOMP, Ww. A. _—ANOPHELES CLARKI, A NEW 8 i 7 Der a i wae? ene | feel OR - led m wii be le v ” : us i . 7 7 ud ai a : s ’ . J ; i 4 ; in _ : av ‘ ‘ y n 6 tie ‘ i ' Le . ! ‘ 7 i A ‘ i i a 7 : N jl 7 R “a | ae = . a fi . ee. 7 ( : i