NO. 1988. THE DIPTEROUS FAMILY PHORID^—MALLOCH. 473 



Type.— C&t. No. 14860, U.S.N.M. 



The type series of this insect is from Ithaca, New York (O. A. 

 Johannsen) . 



There are also several specimens that agree with them in every 

 particular, except that the antennae are rather dusky, in the collec- 

 tion belonging to the Bureau of Entomology, which were reared 

 from fungi (Popenoe). 



APHIOCafiTA FUNGORUM, new species. 

 Plate 37, fig. 4. 



Female. — Yellow; frons black, gray dusted, thickly covered with 

 short hairs, lower post-antennal bristles nearly as large as the upper 

 pair; antennse black-brown, arista concolorous, distinctly pubescent; 

 thorax reddish-yellow, pleurse brownish, coxae very pale yellow; 

 abdomen brownish, first segment short, segments 2-4 subequal, 

 fifth very short, about one-third as long as fourth, seventh pale 

 yellowish, as long as fifth; legs yellow, hind femora and hind tibiae 

 darkened at apices, hind tibial setulae very small and indistinct, 

 hair-like; costa short of wing middle, first division longer than the 

 other two together; fringe fine and close and of moderate length; 

 halteres yellow. 



Length, IJ mm. 



Type.— C&t. No. 14861, U.S.N.M. 



Two females. Cabin John Bridge, Maryland (Popenoe). 



The very short fifth abdominal segment should distinguish this 

 species from those in the same section, in the female at least. It 

 is quite probable that no such disparity exists in the male, in which 

 case other characters will have to be used for distinguishing this 

 sex. 



APHI0CH.S;TA LONGIPENNIS, new species. 



Plate 37, fig. 3. 



Female. — Yellow; frons black-brown, paler in front; lower post- 

 antennal bristles delicate, less than one-half the size of the strong 

 upper pair; antennae brown, paler at base of third joint, arista brown, 

 pubescent, palpi very pale yellow, normal in size and bristling; 

 thorax deep yellow; abdomen yellow, suffused with brown except 

 at base of segments, second segment with a few scattered hairs on 

 lateral margins; segments 2-6 subequal; legs yellow, apices of hind 

 femora darkened, hind tibial setulse strong and distinct (12-13); 

 wings rather long and narrow, the first costal division but little 

 longer than the other two together; fringe long; halteres yellow. 



Length, 1^ mm. 



Type.— C&t. No. 14862, U.S.N.M. 



