o 1938. THE DIPTEROUS FAMILY PHORID^—ilALLOCH. 475 



palpi brown, with five to six moderately strong bristles; posterior 

 edge of thorax with several bristles in addition to the usual dorso- 

 central pair, scutellum with four equally strong marginal bristles; 

 abdomen entirely black, second segment elongated slightly, and 

 dilated laterally, eight to nine bristles of moderate length on lateral 

 margins, apical segment with a few strong pre-apical hairs, ovipositor 

 brown; legs piceous, only the fore coxae apically paler, hind femora 

 with distinct hairs on basal half of ventral surface, mid tibial bristles 

 small, those on hind tibiee distinct and of moderate size from one- 

 fourth from base to about one-third from apex, those on the latter 

 part very small and crowded; wings brownish, more distinctl}^ 

 towards base and fore-margin, costa to middle, first division equal to 

 the other two together, third division not one-fourth as long as second, 

 fringe fine, but long, and closely placed, fourth vein leaving at slight!}' 

 beyond fork with a distinct bend and running nearly straight to 

 slightly in front of wing tip; halteres brownish black. 



Length, 4 mm. 



One female, Ithaca, New York, April, 1901. This specimen was 

 sent by Prof. O. A. Johannsen, after whom I have named it. 



Type,— Cat. No. 14865, U.S.N.M. 



APHIOCH.STA BRUNNIPES, new species. 



Male. — In color identical with the foregoing species but differs in 

 having the antennae very large, nearly one-half as large as the eye, 

 the palpi much smaller and with more numerous and stronger bristles, 

 the bristles on the scutellum are not on the margin, but on the disk, 

 the posterior pair being near the center and almost in line transversely 

 with the anterior pair; the second abdominal segment is not noticea- 

 bly lengthened or dilated, and the bristles on the lateral margins are 

 small (3-4) and hair-like; the hind tibial setulse are weaker, and less 

 in number and not so noticeably reduced on the apical third; the 

 costa reaches to the wing middle, and the tliird division is about one- 

 third as long as the second, the hypopygium is large and the apex of 

 ventral surface is highly polished; the anal protuberance is grayish. 



Length, 2h mm. 



There are two males in the collection from Plummers Island, Mary- 

 land, March 26, 1905 (E. A. Schwarz). 



I had some doubt about this insect being distinct from the preceding 

 species, but the differences except in the size of the antennal joint 

 and the hind tibial setulae are not such as are generally found between 

 the sexes of one species and I have decided that it is better to keep 

 them separate meantime, as there is every probability that they are 

 distinct species. 



Type,— C&t. No. 14866, U.S.N.M. 



