93 INSECUTOR INSCITI^ MENSTRUUS 



Atactosturmia_, new genus. 



Genotype, BlepJiaripa politana Townsend, 1912, Proc. U. S. 

 Nat. Mus., xliii, 340. Piura, Peru. 



Differs from Blepharipa as follows : Female. Frontalia not 

 over one-half as wide as one parafrontal. Parafacials more 

 rapidly narrowed below. Facial plate scarcely at all sunken, 

 f acialia flattened ; the clypeus, f acialia, and epistoma all nearly 

 in the same plane. Third antennal joint not over one and one- 

 half times second. Cheeks about two-fifths eye-height. Median 

 marginal macrochcctae of first and second abdominal segments 

 absent or vestigial. Cubitus nearer to hind margin of wing ; 

 apical cell more widely open and ending nearer to wingtip. 

 The facial and frontal characters considerably approach those 

 of Atacta, but epistoma is less prolonged. 



Minthoplagia, new genus. 



Genotype, Minthoplagia rafaeli Townsend, new species. 



Female. Venation practically like that of Chcctoplagia; dif- 

 fers from that genus as follows: Head characters like Voria 

 except eyes rather thickly hairy, parafacials bare of hairs and 

 without the downwardly-directed macrochseta at end of 

 frontals, arista long and delicate, face slightly narrowed below, 

 third antennal joint more than twice second. A strong anterior 

 lateral scutellar bristle. Front margin of second abdominal 

 segment strongly bulged in middle, forming an arcuate incisure. 

 Abdomen somewhat compressed laterally, suggesting the form 

 of Mintho. 



Minthoplagia rafaeli, new species. 



Length of body, 9 mm. ; of wing, 7 mm. One female, San 

 Rafael, near Jicaltepec, Veracruz, March 26, 1896 (Town- 

 send). 



Head silvery, frontalia brown, palpi pale yellowish, first two 

 antennal joints and arista more or less rufous, third joint 

 blackish with slight bloom. Thorax and scutellum black with 

 silvery bloom ; four vittae, the inner ones narrower, a fifth 

 heavy one in middle behind suture. Abdomen black, rather 

 shining except the silvery pollinose front borders of second 



