474 FROCEEDTNQS OF THE NATIONAL MUBEUM. vol.48. 



Two females, Opelousas, Louisiana, March, 1897. No collector's 

 name or data other than given here. A male from same locality 

 sent by C. W. Johnson has the costa rather longer and the third 

 division about one-fourth as long as second, instead of one-half, as 

 in the female. It has lost the head, so that I can not be certain 

 that it belongs here. 



APmOCttffiTA CAYUGA, new species. 



Yellow; frons brown, lower post-antennal bristles very minute; 

 antennae brown, arista brown, rather short, pubescent, palpi yellow, 

 normal; thorax reddish yellow, abdomen brown, segments subequal 

 except second in male, which is slightly elongated and dilated later- 

 ally, with a few bristles on the lateral margins; anal protuberance 

 of male pale yellow; legs yellow, hind femora entirely yellow, hind 

 tibial setulse very small and indistinct; neuration nearly as in fungo- 

 rum; fringe rather longer; halteres yellow. 



Length, 1-1 1 mm. 



A large number of specimens from Ithaca, New York (O. A. 

 Johannsen). Mr. H. S. Barber has bred this from a fungus Lepiota 

 procera at Plummers Island, Maryland, September 10, 1912. 



Type.— C&t. No. 14863, U.S.N.M. 



APHIOCILffiTA STRAMINIPES, new species. 



Yellow; frons yellow, slightly darkened towards the vertex, lower 

 post-antennal bristles more than half as large as upper; antennae 

 yellow, arista brownish, long, and pubescent, palpi pale yeUow, 

 rather strongly bristled; thorax pale yellow, abdomen more or less 

 suffused with brown, more distinctly on segments 2-4 laterally in 

 male, segments subequal, bristles on second segment very indistinct, 

 legs pale yellow, hind tibial setulas very small and indistinct; costa 

 distinctly short of wing middle, lengths of costal divisions much as 

 in longipennis, but the first vein joining the costa at a much less acute 

 angle, and fringe shorter; halteres dusky yellow. 



Length, 1-1 J mm. 



A number of specimens from Ithaca, New York. (O. A. Johann- 

 sen). 



Type.—Csit. No. 14864, U.S.N.M. 



APHIOCH.ffi;TA JOHANNSENI, new species. 



Female. — Dull black; frons distinctly gray dusted, lower pair of 

 post-antennal bristles about three-fourths as large as the upper pair 

 and not much closer together, neither pair divergent, central 

 pair in first row much lower than the upper post-antennal bristles 

 and as near to them as to the outer pair in first row; antennae rather 

 large, velvety black, arista not very long, indistinctly pubescent; 



