160 INSECUTOR INSCITI^ MENSTRUUS 



of each segment at insertion of lateral marginal macrochseta. 

 Venter quite entirely brown to blackish, only showing the tergal 

 gray narrowly on lateral edges. Hind tibiee not villous. 

 Tegula; pure white. Wings clear at base, as elsewhere. 



Hystricocnema, new genus. 



Genotype, Sarcophaga robusta Aldrich, 1916, Sarc. & Allies, 

 268. 



Flexor surface of male hind femora well set with short sharp 

 spines, being a specialization in direction of Thelyleptico enema, 

 the hind tibice being at the same time shortened. The tibise are 

 only short-hairy, not long-villous in male. The female runs 

 to Oxysarcodcxia in table of Sarcophagini (Proc. Biol. Soc. 

 Wash., XXX, 192-195), and differs from Paraphrissopoda in 

 the entire first hypopygial segment. 



Mantidophaga, new genus. 



Genotype, Mantidophaga stagmomanfidis , new species. 



Allied to Blaesoxiphotheca. Clypeus rather narrow, narrow- 

 ing below. Epistoma narrow, cut off close below vibrissae. 

 Female palpi well swollen at tip. Arista long, thinly plumose 

 scarcely half way. Lowest four to six of facio-orbital row 

 bristly. Preacrostichals developed. First vein bristled on mid- 

 dle, third vein bristled to small crossvein. Weak median mar- 

 ginal pair of macrochsetcT on second abdominal segment, strong 

 erect marginal row on third and anal segments. 



Mantidophaga stagmomantidis, new species. 



Length, 6.5 to T mm. Three females reared by Mr. A. B. 

 Gahan, Washington, D. C., from Stagrnomantis Carolina (See 

 Proc. Ent. Soc. Wash., XVH, 24, recorded as Hdicobia 

 liclicis). 



Blackish, gray-cinereous pollinose. Antennae, palpi and legs 

 blackish. Frontalia and cheek-grooves brownish-rufous. 

 Thorax with three black vittse. Abdomen tessellate with yel- 

 lowish-silvery pollen. Tegulse watery-white. Wrings clear. 



