218 Journal New York Entomological Society, tvoi. xxiii, 



beyond origin of apical crossvein. Cubitus quite as near to front as 

 to hind margin of wing; the apical crossvein at origin set at hardly- 

 more than a right angle, rather evenly and gently bowed in. Hind 

 crossvein regularly sinuate, its axis almost parallel with that of the 

 apical, distinctly nearer to latter than to small crossvein. Tegulse 

 large, naked, the small scale not much over one fifth the size of the 

 other. Legs not elongate. Hind tibiae subpectinate, with longer 

 bristle. Metatarsi of usual length, front tarsi unmodified. Claws 

 shorter than last tarsal joint. Abdomen elongate-subconical, not 

 wider than thorax; no median macrochaetse on first segment, but one 

 lateral discal and one lateral marginal; second with median marginal 

 pair and lateral marginal pair; third with marginal row of ten or 

 twelve including ventral; fourth with marginal row of ten. 

 Named in honor of Dr. T. D. A. Cockerell. 



Cockerelliana capitata new species. 



Length of body, 9.5 mm. ; of wing, 6 mm. One female, Albuquerque, 

 New Mexico, June 30 (Cockerell). 



Brown or blackish in ground color, the venter and especially cheeks- and 

 face less deeply colored. Head with silvery bloom over all except anterior 

 part of frontalia and subrectangular blotch marking junction of parafacials 

 and parafrontals. Ground color of cheeks, face and frontalia fulvous-brown. 

 First two antennal joints and palpi reddish-fulvous. Thorax, scutellum and 

 abdomen silvery ; thorax with two narrow median and two heavier outer 

 vittae ; pollen of abdomen concentrated on anterior three fifths of second and 

 third and anterior half of fourth segments, leaving all of first and broad hind 

 margins of second to fourth subshining blackish. Legs black. Wings clear to 

 whitish, veins yellowish to brownish-yellow at base. Tegulse nearly white. 



Holotype, No. 19560 U. S. N. M. 



PARAMUSCOPTERYX new genus. 



Genotype, Paramuscopteryx genalis Townsend new species. 



Differs from Muscopteryx as follows : Female. — Vertex one third 

 head width, front broadening rapidly. Parafacials with irregular 

 double row of bristles, extending fully to lower end of eyes. Two 

 proclinate fronto-orbitals. One pair of divaricate inner fronto-or- 

 bitals. Vibrissse level with oral margin, from four to six closely- 

 placed bristles above them. Cheeks nearly or quite three fourths of 

 eye-height. Antennae fully three fourths length of face, third joint 

 fully one and one half times as long as second; arista thickened on 



