ICHNEUMON-FLIES, PART 2\ EPHIALTINAE 



55 



8. Scambus (Scambus) brevicornis (Gravenhorst) 



Figures 311,1; 320,j 



Pimpla brevicornis Gravenhorst, 1829, Ichneumonologia europaea, vol. 3, p. 211; 



d\ 9- Types: o 71 d", 9 9, Germany (Wroclaw). 

 Epiurus bicoloripes Ashmead, 1902, Proc. Wash. Acad. Sci., vol. 4, p. 201; 9- 



New synonymy. Type: 9, Berg Bay, Alaska (Washington). 



Male: Front wing 2.75 to 4.75 mm. long; antenna with 18 to 22 

 segments; cheek very short, about 0.21 breadth of base of mandible; 

 temple, as seen from above, moderately rounded and about 0.68 times 

 as long as eye; thorax moderately stout; propodeum rather short, with 

 dorsomedial carinae strong and extending from base to apical 0.25, 

 dorsal area with large, shallow, sparse punctures, sides more densely 

 punctate and more or less rugose; legs stout, front femur very broad 

 without excision beneath, front tibia slightly bent; abdomen rather 

 stout; tergite 1 almost as broad as long, with median carinae strong 

 and extending to apex, sides and central area beyond middle with 

 irregular sculpture and scattered punctures; tergite 2 with coarse, 

 dense punctures, except on apex; tergites 3-7 punctate, except on 

 apices, with punctures progressively weaker on successive tergites; 

 body with rather long, conspicuous vestiture. 



Black. Pedicel yellowish beneath ; flagellum blackish above at base, 

 becoming brownish above toward apex, beneath pale brown to yel- 

 lowish brown; maxillary palpus pale yellowish; labial palpus pale 

 brown to fuscous; tegula and hind angle of pronotum yellowish; stigma 

 brownish to blackish, narrowly paler at base and apex or with narrow 

 pale margins; legs very variable, but usually with all femora and 

 front and middle tibiae reddish (rarely with hind femur, and to a 

 lesser degree middle femur, suffused with fuscous); coxae varying 

 from entirely red to entirely black; trochanters usually yellowish to 

 reddish, but occasionally middle and hind trochanters black; hind 

 tibia with a narrow subbasal and a broader apical fuscous annulus 



Figure 18. — Localities for 

 Scambus (Scambus) 

 brevicornis. 



