. Bulletin - United States National Museum. Science. ICHNEUMON-FLIES—GELINAE : MESOSTENINI 41 3. Apsilops sericata (Viereck) Neostricklandia sericata Viereck, 1925, Canadian Ent., vol. 57, p. 75; 9 . Type: 9 , Alberta (Ottawa). Trichestema helcostizoides Cushman, 1927, Proc. Nat. Mus., vol. 72, art. 13, p. 9; 9 . Type: 9 , Bruce, S. Dak. (Washington). Biology: Frohne, 1939, Trans. Amer. Micros. Soc, vol. 58, p. 234, 325, 347. Front wing of male to mm. long, of female to mm. long; body stout, depressed, the fii'st abdominal segment stout; hairs on thorax very dense; posteri
. Bulletin - United States National Museum. Science. ICHNEUMON-FLIES—GELINAE : MESOSTENINI 41 3. Apsilops sericata (Viereck) Neostricklandia sericata Viereck, 1925, Canadian Ent., vol. 57, p. 75; 9 . Type: 9 , Alberta (Ottawa). Trichestema helcostizoides Cushman, 1927, Proc. Nat. Mus., vol. 72, art. 13, p. 9; 9 . Type: 9 , Bruce, S. Dak. (Washington). Biology: Frohne, 1939, Trans. Amer. Micros. Soc, vol. 58, p. 234, 325, 347. Front wing of male to mm. long, of female to mm. long; body stout, depressed, the fii'st abdominal segment stout; hairs on thorax very dense; posterior mesosternal carina widely interrupted in front of each middle coxa; propodeum almost flat above; areola Figure 10.—Localities for Apsilops imperfectly defined, especially in female; median longitudinal carinas of propodeum indistinct or absent basad of the areola; propodeal spiracle elongate, a narrow slit; intercubiti strongly convergent forward; ovipositor of moderate stoutness, about as long from nodus to apex as it is deep at nodus. Black. Palpi brown; scutellum of male rarely, of female nearly always with a white spot; coxae fulvous, or in males the upper side of hind coxa often fuscous; trochanters fuscous; femora fulvous, in the male the apex of front femur weakly infuscate, of middle femur rather narrowly fuscous, of hind femur broadly fuscous; front tibia fulvous; middle tibia brownish fulvous in male, fulvous in female, darkened at the base and apex; hind tibia brown in male, brownish fulvous in female, infuscate at base and apex; tarsi dark brown to black; wings faintly infuscate; abdomen of male black or with a brownish tinge; first abdominal segment of female black, second tergite of female ferruginous, usually with some infuscation; third tergite of female ferruginous basally, infuscate apically; fourth and following tergites of female blackish, often with a ferruginous tinge. Specimens: 2cf, 79, Wabamun, Alta., July 31, 1929 and Aug. 2 and 1
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