NO. 1938. THE DIPTEROUS FAMILY PHORID^—MALLOCH. 511 



Genus ^^NIGMATIAS Meinert. 



So far two species are described belonging to this genus, one of 

 which is American, namely, schwarzii Coquillett. It may be dis- 

 tinguished from hlattoides Meinert, by having only four free abdomi- 

 nal segments instead of five as in that species. Two specimens in 

 collection. 



Locality of type, Flagstaff, Arizona (H. S. Barber) ; second speci- 

 men, Bozeman, Montana (R. A. Cooley). This last specimen was 

 taken in a greenhouse. 



EXOTIC PHORID^ NEW TO SCIENCE IN COLLECTION. 



DOHRNIPHORA NITIDA, new species. 



Female. — Black; distinct^ shining; frons very glossy, nearly as 

 long as broad, center pair of bristles in first row distinctly lower on 

 frons than outer pair, second row nearly straight or slightly concave, 

 ocellar triangle raised slightly, antennae clear yellow, arista at least 

 tmce as long as frons, distinctly pubescent, palpi yellow, rather long, 

 and strongly bristled, proboscis thin, cliitinized and projecting as 

 far as end of palpi, yellow; thorax glossy black, paler along posterior 

 margin, the dorsal hairs very numerous and long, one pair of dorso- 

 central bristles, pleur£e slightly brownish, scutellum slightly shining, 

 very short, about one-fourth as long as broad and slightly produced 

 posteriorly at center, with eight bristles, the second from each lateral 

 edge being much the strongest; abdomen opaque, black, first seg- 

 ment very short, concave on posterior margin, centrally not one- 

 sixth as long as second, second very long and broad, rather more than 

 twice as long as third, produced laterally at middle, other segments 

 decreasing in length and breadth, apex of abdomen with distinct 

 hairs which are very strong on the apical third of the ventral sur- 

 face; legs piceous, anterior pair and all tarsi paler, fore tibias with a 

 row of about seven setulse, the first one being at about the basal third, 

 the second just before the middle, and the other five at nearly regular 

 intervals on the apical two-fifths, mid tibial pair of setulae very near 

 base, the subapical one nearly at apex and very weak, the hairs on 

 postero-dorsal surface almost setulose, hind tibiae ^vitll only a single 

 weak bristle at tip on dorsal surface besides the end spurs, the hairs 

 on postero-dorsal surface very strong; \vdngs grayish, costa to beyond 

 middle, first division nearly twice as long as other two together, third 

 about one-fourth as long as second, fringe short and very close, 

 fourth vein leaving at before fork with a slight bend and ending 

 recurved at slightly in front of wing tip; halteres black. 



Length, 4 mm. 



Locality. — Lorenzo Marques, Africa (C. W. Howard). Two 

 specimens. 



