OF WASHINGTON. 97 



Family EPHYDRID^. 

 Notiphila frontalis, n. sp. 



Black, the palpi, third joint of antennae except the upper edge, knees, 

 last two pairs of tarsi and the halteres, yellow; front yellowish-gray prui- 

 nose and with a pair of broad, velvet-black vittse which converge toward 

 their lower ends which are as widely separated as the antennae, face 

 golden-j'ellow pruinose; thorax yellowish-gray pruinose, a brown vitta 

 above middle of pleura and five on the mesonotum, the median three 

 forked near the middle, the forks united, three and three, at the posterior 

 end of the thorax ; scutellum yellowish-gray pruinose and marked with 

 four brown vittae; abdomen olive-gray pruinose, segments two to five 

 each marked with a pair of subtriangular black spots which cross the seg 

 ment near its middle and at its base are prolonged to the lateral margin ; 

 wings hyaline. Length 2 mm. 



Three specimens from Managua and Granada, Nicaragua. 

 Type. No. 7805, U. S. National Museum. 



Family GEOMYZID^. 

 Scutops, n. gen. 



Near Opomyza, but the antennal arista is very long plumose, the face 

 subtrigonate, no dorsocentral bristles on the thorax in front of the suture, 

 etc. Head longest along the under side, front wider than long, bearing 

 two pairs of vertical bristles and one pair each of postvertical. ocellar and 

 orbital bristles ; face somewhat shield shaped, hollowed out in the middle 

 and elevated into a low ridge on each side and around the narrowed lower 

 end, no vibrissas ; antennae not quite reaching middle of face, the first 

 joint very short, the second rather long and broad, the third slightly 

 longer but narrower than the second, somewhat pointed at the apex, the 

 arista dorsal, inserted near the base of the third joint, sparsely but very 

 long plumose (nearly as in Drosophild} ; eyes reniform, over twice as 

 high as long ; cheeks about one-tenth as wide as the eye-height ; proboscis 

 short and robust, palpi spatulate; occiput strongly concave. Thorax 

 bearing two pairs of dorsocentral bristles, two supra-alar, two posthum- 

 eral, one humeral, one sternopleural, pleura otherwise devoid of bristles, 

 scutellum bearing four. Auxiliary vein absent except toward its base ; 

 second basal and anal cells large, sixth vein prolonged almost to the 

 wing-margin, anal angle of wings strongly developed. Tibiae devoid of 

 preapical bristles. 



Type : The following species : 

 Scutops fascipennis, n. sp. 



Yellow, apices of palpi, two broad vittae on the mesonotum, the meta- 

 notum except the sides, the abdomen and two interrupted bands on each 

 tibia, black; the face, a vitta along the hind margin of each eye and one 



