. Bulletin - United States National Museum. Science. 370 U. S. NATIONAL MUSEUM BULLETIN 216 PART 3. Figures 200-202.—Localities: 200 (left), Trychosis subgracilis; 201 (center), T. depilis; 202 (right), T. atroruhens. their diameter; propodeum of moderate length, its apical carina forming broad rudimentary sublateral crests, mesad of the crests curved forward, its median portion very weak or sometimes absent; hind femur of male about as long as deep, of female about as long as deep; sides of areolet parallel or faintly convergent; nervulus beyond basal vein by about its length; ne


. Bulletin - United States National Museum. Science. 370 U. S. NATIONAL MUSEUM BULLETIN 216 PART 3. Figures 200-202.—Localities: 200 (left), Trychosis subgracilis; 201 (center), T. depilis; 202 (right), T. atroruhens. their diameter; propodeum of moderate length, its apical carina forming broad rudimentary sublateral crests, mesad of the crests curved forward, its median portion very weak or sometimes absent; hind femur of male about as long as deep, of female about as long as deep; sides of areolet parallel or faintly convergent; nervulus beyond basal vein by about its length; nervellus broken near its middle; petiole rather slender, with a ventrolateral and dorsolateral longitudinal ridge, its lateral face mth some weak wrinlding; second tergite subpolished, its hairs a little denser laterally than medially, the hair sockets separated b}^ about the length of the hairs in male, m female the sockets almost as closely spaced but because the hairs are shorter they are separated by about to the length of the hairs; ovipositor normal for the genus. Male: Black. Palpi blackish brown; tegula black; front femur light brown, fuscous basally and behind; middle femur blacldsh, its front side rather light brown, at least toward the apex; front and mid- dle tibiae dark brown, medium brown in front; front and middle tarsi dark brown, paler at the joints; hind tarsus black, most or all of segments 3 and 4 usually white, and some or all of segment 2 often white; wings infuscate; apical of first abdominal segment and all of the following segments ferruginous. Female: Colored like the male except that hind tarsus is always blackish brown with the joints paler. The fiagellum is entirely black. The fuscous wings, black hind femur, vertical part of epomia weak or absent, fiat or wealdy convex temple, and very high, lamellalike occipital carina distinguish this species. It is very close to T. rejlexa, which is most easily distinguished by the strong verti


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Keywords: ., bookauthorun, bookcentury1800, bookdecade1870, booksubjectscience