June, 1915 Bulletin of the Brooklyn Entomological Society 65 



Frons distinctly more than half the width of head ; orbits 

 broad, anterior orbital bristle slightly weaker than the upper, 

 both outwardly directed, orbital hairs weak ; cruciate setulse weak 

 but rather numerous ; antennae of moderate size, arista slender, 

 not longer than width of frons ; cheek over half as high as eye, 

 the latter slightly longer than high. Mesonotum with four very 

 weak pairs of dorso-centrals which are hardly distinguishable 

 from the setulse which are in the same longitudinal lines ; between 

 the dorso-central rows there are two rows of acrostichals, which 

 are as strong as the setulse of the two dorso-central rows ; between 

 the dorso-central rows and the lateral row there is a somewhat 

 irregular row of setulae ; scutellum short and broad, rounded 

 posteriorly, 4 marginal bristles present ; sternopleural bristles very 

 weak. Abdomen very short and broad, second segment much 

 elongated, the others short ; dorsum of second segment almost 

 glabrous, the other segments with short surface hairs and distinct 

 setulose hairs apically on lateral margins ; hypopygium large, and 

 projecting on ventral surface. Legs stout and rather long, their 

 surfaces with numerous, moderately long, soft hairs ; mid and 

 hind tibia; with preapical bristle, the latter with a distinguishable 

 bristle near middle of the anterior surface ; hind tibia with a 

 short but distinct apical thorn ; basal joint of hind tarsus much 

 swollen, subequal in length with the slightly swollen second joint ; 

 empodia large, fringed. Wings broad ; second costal division two 

 and a half times as long as first; veins 3 and 4 slightly conver- 

 gent apically, the last two sections of fourth vein subequal in 

 length ; inner cross-vein slightly over one third from base of 

 discal cell ; outer cross-vein over one half of its own length from 

 end of fifth vein; sixth vein incomplete. 



Length 2, mm. 



Type locaHty, St. Joseph, 111., May 17, 1914 (J. R. Malloch). 



This species is closely allied to B. lacteipennis Malloch, but 

 may be separated from it by the color of the frons, the absence 

 of the series of long hairs from the hind tibije of the male, and 

 the different venation. 



Aphiochaeta bisetulata, n. sp. Female : Yellow. Ocellar 

 region blackened, antennae and palpi pale yellow ; arista brown. 



