NO. 1938. THE DIPTEROUS FAMILY PHORIDJE—MALLOCn. 477 



APHIOCHiETA ROSTRATA Melander and Bnies. 



Female. — Head shining black, especially smooth and poUshed on 

 the front and vertex; frons with the normal bristles, except that the 

 lower post-antennal pair is absent; frontal suture very distinct; 

 antennsB black, arista distinctly plumose; proboscis piceous, very 

 large and strongly exserted, as long as height of head, slender at base, 

 where the rather small spindle-shaped palpi are inserted, swollen and 

 bifurcated at apex, the bifurcation being produced by a splitting of 

 the apex, by a horizontal slit in proboscis; thorax shining, scutellum 

 with two bristles; abdomen nowhere bristly; legs pale yellow, tarsi 

 sometimes brownish; hind tibias very distinctly ciliated and with a 

 single weak apical spur, as have also the middle pair, on the inner side 

 at apex the hind tibiae have several transverse rows of short black bris- 

 tles; costa to distinctly beyond middle of wing, first division slightly 

 longer than second, fringe very short, fourth vein evenly arcuate; 

 halteres yellowish, blackened at tip. 



Length, 1.5-1.75 mm. 



Described from specimens taken at Woods Hole, Massachusetts. 

 It is unrepresented in the collection. 



APHIOCHiSTA CATA Melander and Brues. 



Male and female. — Head black; frons short, about as wide as 

 long, faintly gray pollinose in male, lower post-antennal bristles 

 absent; antennae entirely black, enlarged, and ovate in male; in 

 female they are normal ia size and slightly yellowish at base, arista 

 pubescent; palpi light yellow, strongly bristled; proboscis of female 

 projecting, stout and horny; thorax shining, scutellum with two 

 bristles; legs yellowish brown, anterior pair paler; posterior femora 

 ciliated on apical half of ventral surface, hind tibiae without any 

 rows of small bristles on their outer side, four posterior tibiae each with 

 a single dehcate apical spur; costa not quite reaching to middle, 

 first division nearly twice as long as the other two together, fringe 

 very short and close; fourth vein sightly but evenly curved, recurved 

 at extreme tip; halteres yellow in female, piceous in male. 



Length, 0.8-1.2 mm. 



Described from same locality as rostrata. It is unrepresented in 

 collection. 



APHIOCH^TA PROBOSCIDEA, new species. 



Plate 36, fig. 2. 



Female. — Brown-black; frons black-brown, anteriorly paler, lower 

 post-antennal bristles small but present, central pair of bristles in 

 first row incurved, situated distinctly lower and nearer the center of 

 frons than the outer pair, but much nearer the outer pair than to the 

 upper pair of post-antennals ; antennae small, brown, arista rather 



