AET. 15 NEW GENERA AND SPECIES OF MUSCOID FLIES ALDRICH 9 



inf uscated ; genitalia mostly reddish in color, of about the same type 

 as in Ptilodexia^ the outer forceps being flat and broad, but in this 

 case slightly curved forward to an acute tip; the inner forceps are 

 straight, very slender, and so close together that in one specimen they 

 appear to be united. 



Legs black; all the pulvilli large and dark colored; middle tibia 

 with one bristle on outer front side ; hind tibia with five or six bris- 

 tles on outer side, ending a little beyond the middle. Calypters 

 white. 



Wings subhyaline ; third vein with only four or five hairs at base ; 

 hind cross vein oblique and sinuous, joining the fourth vein only a 

 little before the bend ; last section of fifth vein less than half the hind 

 cross vein. 



Length, 10.5 mm. 



Described from two males. The type was received from Prof. 

 D. S. Bullock, Angol, Chile, who reared it October 29, 1928, " from 

 roots of basket willow"; the paratype was collected at Conception, 

 Chile, December 26-28, 1926, by F. Edwards and M. Edwards, after 

 whom the species is named; it was collected by a British Museum 

 expedition and the specimen is returned to that institution. 



Type.—G2it. No. 41651, U.S.N.M. 



This species bears a striking resemblance in its brilliant pollinose 

 pattern to Huascarodeocia ^mlchra Townsend ^ described from a single 

 female specimen collected in Peru. Townsend's species, (female, 

 male unknown), has the arista short plumose, the third antennal 

 joint considerably longer, parafacials much wider, well-developed 

 proclinate ocellars, proboscis somewhat longer, and the abdomen 

 with very feebly developed discals. Both genera have pilose eyes, 

 an unusual character in species so distinctly dexiine. 



CARTOCOMETES, new g-enus 



Eyes bare; front prominent, broad in both sexes; third antennal 

 joint twice the second, reaching nearly to vibrissae, which are far 

 apart at oral margin; second aristal joint a little elongate, about one- 

 sixth of the third; ocellars large, proclinate and divergent; frontal 

 bristles reaching to middle of second antennal joint; proclinate or- 

 bitals present in both sexes; parafacials with numerous quite long 

 hairs ; face a little concave, the ridges low, with three or four bristles 

 above the vibrissae, not reaching middle of the face; cheek about 

 two-fifths eye height; palpi and proboscis normal; antennal axis 

 almost double the vibrissal. Postscutellum and hypopleural bristles 

 present. First posterior cell open in apex of wing; the fourth vein 

 with broadly rounded curve ; first vein bare ; third with sparse, long, 



8 Ins. Ins. Menst., vol. 6, 1918. p. 176. 



