482 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. 43. 



short, fourth segment in female very short, only about half as long 

 as third and about one-third as long as fifth; legs dark brown, fore 

 coxse paler, hind femora and tibiae strong, tibial setulae strong and 

 widely placed (9-10); wings brownish, costa just short of wing 

 middle, first division twice as long as second, third one-third as long 

 as second, fourth vein slightly curved at origin and ending with a 

 slight upward sweep at distinctly in front of wing tip, fringe of costa 

 very short and close ; halteres yellow. 



Length, 1^ mm. 



This is an extremely common species all over Europe. I have 

 taken it in large numbers under bark of dead trees in December and 

 January, especially where the beetle Bhagium hifasciatum was bur- 

 rowing. It also is very common about carrion and garbage. The 

 only specimen I have seen from America is one female from Ithaca, 

 New York (O. A. Johannsen). It seems to be identical in every 

 respect with European examples of ciliata. 



APHIOCH.fflTA RETARDATA, new species. 



Male. — Shining black; frons glossy black, as long as broad, with 

 numerous fine hairs as well as the usual bristles present, only one 

 distinct pair of post-antennal bristles present, center pair of bristles 

 in first row incurved, distinctly, but not greatly, lower on frons than 

 outer pair and nearly equidistant between them and the post-anten- 

 nal pair, second row convex, third antennal joint large, round, arista 

 distinctly longer than breadth of frons, very slightly pubescent; palpi 

 narrow, clear yeUow, with numerous short, stout, black bristles; 

 thorax shining, scuteUum with two strong bristles, mesopleural 

 bristles of equal length, pleurae brown, paler toward coxae; abdomen 

 subshining, bare except at apex of sixth segment, where there are 

 some long hair-like bristles, hypopygium brown, a few long hairs on 

 ventral surface, anal protuberance brown, short and stout, with two 

 terminal hairs; legs brown-black, fore pair, trochanters, and bases of 

 femora yellowish, hind legs strong, hind tibial setulae distinct on 

 apical half, wings brownish tinged, costa distinctly short of middle, 

 first division about one and one-half times as long as other two to- 

 gether, third about two-thirds as long as second, fringe short, fourth 

 vein regularly arcuate and ending distinctly in front of wing tip, 

 halteres yellow. 



Length, 1 mm. 



One male. Las Vegas, New Mexico (H. S. Barber). 



Has a general resemblance to minor Zetterstedt, from which the 

 bristly mesopleura separates it, and to ciliata Zetterstedt, from which 

 the absence of the long mesopleural bristle distinguishes it. 



Tyjpe.—Cect. No. 14877; U.S.N.M. 



