ICHNEUMON-FLIES — GELINAE : MESOSTENINI 



415 



Figures 227, 228. — Localities: 227 (left), Listrognathus bicolor; 228 (right), L. femorata. 



2. Listrognathus (Listrognathus) femorata, new species 



Figure 335, b 



Front wing 6.5 to 7.2 mm. long; frontal horn of moderate size in 

 male, very small in female; propodeum with rather wide short crests, 

 the apical carina between the crests strong in male, moderately strong 

 in female; postpetiole of moderate width, its punctures close laterally, 

 somewhat sparser medially; punctures of second tergite close, separated 

 by about 2.5 theh diameter; ovipositor tip as in L. albomaculata. 



Male: Black. Face, frontal orbit, clypeus, cheek, lower part of 

 temporal orbit, mouth parts, front of scape, tegula, and marldngs on 

 thorax and abdomen as illustrated for female (fig. 335,b), white; fia- 

 gellum brown beneath, with a median white stripe above; front and 

 apex of front and middle coxae white, the rest brown or fulvous; front 

 and middle trochanters white, more or less brown or fulvous above; 

 front and middle femora and tibiae fulvous, the tibiae with a whitish 

 basal band; front and middle tarsi whitish, their last segment brown; 

 hind coxa ferruginous or sometimes partly infuscate, rarely with a 

 small whitish area above; hind trochanters and femur ferruginous, the 

 apical 25 to 0.6 of the femur infuscate or black; hind tibia black with 

 a subbasal white ring; hind basitarsus black, its basal 0.15 ± and 

 apical 0.3 zb white; segments 2-^ of hind tarsus white; segment 5 of 

 hind tarsus black; ground color of first abdominal segment varying 

 from black to fusco ferruginous; second tergite often with a ferruginous 

 tinge basally. 



Female: Black. Frontal and facial orbits, spot on clypeus and on 

 mandible, flagellar band covering about 5 segments (but incomplete 

 below), tegula, and markings on thorax and abdomen as in figure 335, b, 

 white; palpi fuscous and whitish; front and middle coxae white in 



