OF WASHINGTON, VOLUME XII, 1910. 127 



ually narrow; eyes bare, cheeks about one-seventh as wide as the eye- 

 height, proboscis robust, less than half as long as height of head, palpi 

 wanting. Wings narrow, of nearly an equal width, veins bare, the third 

 terminates at the extreme wing-tip, hind cross-vein nearer to the small 

 than to the bend of the fourth vein, small cross-vein at three-fourths of 

 the length of the discal cell, noticeably beyond the apex of the first vein. 

 Abdomen without bristles, except a few weak ones on the fourth segment. 

 None of the tibiae ciliate. 



Type : The following species: 



Petia calvaj new species. 



Male. Black, the antennas, face, cheeks, and lower part of the occiput 

 yellow, proboscis yellowish brown. Front three-fourths as wide as 

 either eye, arista thickened on the basal fourth. Body not pruinose, ex- 

 cept on the pleura; two postsutural dorsocentral bristles and two sterno- 

 pleurals: hypopygium very large. Wings smoky brown from base to 

 apex of second vein, whitish hyaline beyond this. Pulvilli of front tarsi 

 much shorter than the last joint. 



Length, 3.5 mm. 



Moscow, Idaho (J. M. Aldrich), and San Pedro, California. 

 Two specimens. 



Tvpe: No. 13094, U. S. National Museum. 



PHYTODES, new genus. 



Near Neophyto, but the petiole of the first posterior cell is about as 

 long as the hind cross-vein, the abdomen is without discal bristles, etc. 

 Ocellar bristles proclinate, frontals not descending below base of anten- 

 nae, face strongly retreating below, the sides bare, except the upper 

 outer corner, which is sparsely covered with short hairs, this area lim- 

 ited. below by a row of bristles extending from near apex of antenna- 

 obliquely to slightly below the eye; cheeks as wide as the eye height: 

 eyes bare; antennae reaching about one-fourth of distance to the oral 

 margin, the third joint subequal in length to the second, arista bare, the 

 penultimate joint shorter than Ions, facial depression extending less than 

 half-way to the oral margin, vibrissa- inserted at about one-third of dis- 

 tance from oral margin to base of antennae; proboscis very short, robust, 

 palpi invisible in the single specimen before me (doubtless retracted 

 with, and concealed by, the proboscis). Veins, except the third, bare, 

 the third terminates a short distance above the extreme wing-tip, hind 

 cross-vein nearer to the small than to the bend of the fourth vein, the 

 latter rectangular and with an indistinct fold continuation. 



TV pc: The following species: 



Phytodes hirculus, nc\v species. 



Female. Black, the frontal vitta reddish brown, first two joints of 

 antenn;t yellowish, the bare upper part of the face, crossing the upper 



