C. T. Brues.
A New Species of Evania from the Cameroons (Hymenoptera; Evaniidae).
Psyche 25(4):93-95, 1918.

This article at Hindawi Publishing: https://doi.org/10.1155/1918/47323
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0.088nun.; H,OJ9SSxmn.; ~,OJ!Bana.; IV (OFQ88inm.+0.176 sam.). Seak reaching to the hind coxse, cornicles 0,048 mm. Second insfar,
Similar to the last in general color. Ahtenlife of five segments with the measurements as follows: Segment I, 0.048 mm.; 11, 0.048 mrn.; m, 0.112 mm.; IV, 0.08 mm.; V (0.048 nun.4-0.924 mm.). Cornicles 0.08 mm. Beak reaching beyond the second cox#.
Hind tibia 0.272 nun.
Third instar, General color similar to that of the previous in- star, excepting that it is somewhat darker in color. Antennsa of five segments, with measurements as follows: Segment I, 0.664 mm.; 11, 0.048 tmn.; Ill, 0.176 mm.; IV, 0.11'2 mm.;V (0.048 mm.+0.872 ma.); cornicles O.llS nun. Hind tibia 0.368 mm. Fmirth inatar. General color similar to that of the last instar. Antennas of six segments with measurements as follows: Segment IlI,0.224mm.; IV,0.16mm.;V,0.144mm,; VI(0.08mm.4-0.368 mm.). Segments imbricated but without secondary sensoria. Cornicles 0.193 mm. long, tapering, but slightly swollen on the distal third and distinctly imbricated and flanged. Hind tibia 0.64 mm. long; slightly swollen and thickly covered with nearly circular, tuberculate sensoria; length from vertex to tip of eauda 1.76 mm. Type in TJ. S. National Museum.
A NEW SPECIES OF EVANIA FROM THE CAMEROONS BY CHARLES T. Bma,
Busaey Institution, Harvard University.
In working over a collection of Evaniidte from South Africa, I have had occasion to examine a very interesting species from West- ern Africa. This was contained in a collection of Parasitic Hymen- optera, given me by Prof. ~.~haxter, and the type has been de- posited in the Museum of Comparative Zdlogy in Cambridge, Evaaia 3fl~ocoialia sp* nov.
Leagth 6 mm. Blade, the antennae brown at the base; palpi, four anterior cox= and trochanters, anterior side of anterior tibia and posterior corn below, except at apex, yellow. Wings hyaline with a brown tinge. Body very thinfy pubescent, almost



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94 Psyche [August
bare, except the hind tibiae and tarsi which are more strongly pubes- cent than usual. Head rugosopunctate above the ocelli; front excavated gently above the antennae, the basin finely longi- tudinally striate, space between it and the eyes more coarsely striate; between the antennae is a strong carina that extends up- ward and disappears before the ocelli; beneath the antennae is a transverse carina that curves upward outside them and extends halfway to the ocelli; face with deep striae that converge below; cheeks with striae that curve toward the base of the mandibles; head behind the eyes with scattered punctures of variable sizes, impunc- tate near the posterior edge and on the occiput except close to the ocelli. Cheeks half as long as the eyes, the inner edges of which are divergent below; ocelli close together in a low triangle, the Fig. 1. Evania flavocoxalis sp. nov., fore wing and outline of metasternal process.
posterior ones larger than the anterior one, as far from one another as from the eye margin. Antennae slender; third and fourth joints equal, each as long as the first two together and fully six times as long as thick. Mesonotum with distinct parapsidal fur- rows and with two other deep-grooved lines on each side external to the furrows; of these the inner one meets the furrow near its anterior end and the outer one meets the edge of the mesonotum just in front of the tegula; both attain the posterior margin of the mesonotum ; surface of mesonotum irregularly punctate with coarse and fine punctures intermixed; smooth medially behind. Scutellum with large, well-separated punctures, smooth medially behind. Propodeum elongate, longer than the distance from its base to the anterior edge of the prothorax; not excavated behind, its posterior surface very gradually sloping, rounded off to the



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19181 Bruee-New Species of Evaniafrom Cameroons (Hymenoptera; Evaniidce) 95 base of the coxae; evenly reticulate, coarsely so behind the inser- tion of the abdomen, finely so at the base. Pleurae punctate- reticulate, the mesopleura with a long smooth space above that extends downward anteriorly. Metasternal process long and very narrow medially, its tines well-developed, widely divergent, and but slightly curved. Legs slender; hind coxae microscopically transverse-reticulate; hind femora simple; hind leg not over twice as long as the body; longer spur of hind tibia half the length of the metatarsus. Petiole of abdomen coarsely obliquely striate except near the base. Wings with the basal vein lying closer than usual to the subcostal vein; cubitus arising very close to the junc- tion of the basal and subcostal veins; nervulus interstitial with basal vein; radial vein meeting the subcosta at an acute angle; cubitus and subdiscoideus wanting beyond the cells. Hindwing with seven frenulum hooks.
This species is somewhat similar to E. verrucosipes Kieff. and might possibly be the male of that species which is known from the female only. However, the sculpture of the temples, scutel- lum, propodeum and petiole is entirely different and the thorax is nearly twice as long. From E. cristatifrons Kieff. also known from the female, it differs by the absence of the carina on the vertex and the pectinate process between the antennae, by the sculpture of the petiole, and form of thorax. From E. divergens Kohl it is evidently distinct, although Kohl's description is very incomplete. The cheeks are shorter and the basal joints of the antennae are much longer, and the color is different. The thorax is very much more elongate than in any other Evania that I have seen and the antennae are more slender. The thorax is fully twice as long as high and the propodeum slopes gradually from base to tip, whereas it usually bends abruptly with an almost vertical posterior face.



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