Dec, I9IS-] Townsend: New Muscoidea. 223 



Differs from color description of Knabia hirsnta only as follows: Third 

 antennal joint quite as black as arista. Outer pair of thoracic vittae a little 

 widened. Scutellum all testaceous except extreme narrow basal margin. Pol. 

 len bands of abdominal segments two to four broader, less well defined, more 

 ashy in color. Wings wholly clear. Tegulae watery-white. 



Holotype, No. 19563 U. S. N. M. 



PARAPHASMOPHAGA new genus. 



Genotype, Paraphasmophaga clavis Townsend new species. 



Would run to Phasmophaga Townsend in table (Ann. Ent. Soc. 

 Amer., II., 245) but for long-petiolate apical cell, long stump at origin 

 of apical crossvein, short and thick nail-like arista, no orbitals in male 

 but front wide, facialia ciliate far up. Approaches Paradmontia 

 Coquillett in the petiolate apical cell but petiole terminates far before 

 wingtip, third vein bristly to small crossvein, arista short and thick- 

 ened but second joint not elongate, parafacials bare but bristles on 

 facialia. 



Profile of parafacials and facialia strongly bulged, the lower border 

 of head very short and rather rounded. Proboscis very short, palpi 

 small and slender. Facial depression of male deeply excavated, the 

 third antennal joint greatly elongated and extending to the cut-off 

 oral margin, the second antennal joint excessively shortened. Vibris- 

 sse on oral margin not longer than the peristomal bristles next to 

 them. Eyes only very faintly hairy, front of male rather less than 

 one half head width, parafacials about one half eye width, cheeks 

 nearly one third eye height. Ocellar bristles present, widely divari- 

 cate. Origin of apical crossvein almost half way between front and 

 hind margins of wing. Hind crossvein short and nearly straight, 

 slightly nearer to small crossvein. First segment of abdomen with a 

 small median marginal pair of macrochjetse, the following segments 

 with median discal and marginal pairs, the anal segment with discal 

 and marginal rows. Legs short, the claws of male short. Para- 

 frontals with extra bristles and bristly hairs outside frontal rows. 

 Frontalia broader than parafrontals, nearly as broad as distance be- 

 tween lunula and ocellar area. Arista porrect. Cilia of facialia di- 

 rected downward. Ptilinal suture extending below eyes, about to 

 vibrissal angles. 



Paraphasmophaga clavis new species. 



Length of body, 5.5 mm.; of wing, 3.75 mm. One male, October 9, mesa 

 east of Las Cruces, New Mexico, 4000 ft. (Townsend). 



