AMERICAN DIPTERA. 329 



structure of the hind legs readily separate this form from the pre- 

 ceding. 



The collection contains numerous specimens of both sexes taken 

 in Idaho, by Prof. J. M. Aldrich. 



EMPIMOKPHA Coquillett. 

 Same as Empis, except that the face is covered with long liristly 

 hairs; antennal style apical, proboscis directed downward, longer 

 than the height of the head ; third vein forked ; discal cell perfect, 

 sending three veins to the wing margin ; anal cell shorter than the 

 second basal, the vein at its apex nearly parallel with the hind mar- 

 gin of the wing. 



Pile iu front of the halteres and on the sides of the abdomen black 2. 



Pile in front of the halteres and on the sides of the abdomen whitish. 



eoHianlis Coquillett. 



2. Palpi, proboscis, legs and halteres largely reddish barbnta Loew. 



Palpi, proboscis, legs and halteres black geiiealis sp. nov, 



Empimorpha barbata Loew (Fig. 106). 

 Empis barbata Loew, Cent, ii, 19. 



Head black, with long black pile. Eyes large, subcontiguous ^niale). First 

 two joints of the black antennse clothed with long black pile. Face bearded 

 with black pile. Palpi large, badious, with black pile. Proboscis very long, 

 much thickened at base. Thoracic dorsum black, opaque, black-pilose, with 

 three cinereous vittfe, the median narrow, the outer ones broad. Pleurje black, 

 with cinereous-yellow pollen, bare, except for the bunch of black hairs in front 

 of the halteres. Abdomen black, subshining, opaque, towards the sides with 

 cinereous pollen, and provided with long black hairs. Hypopygium small, black- 

 pilose, the lower lamellae large, ovate, the middle filament short, awl-shaped. 

 Legs badious, with black hair, the extreme tip of the tibise and the tarsi black, 

 but the metatarsi, except the apex, and the base of the next few joints badious. 

 Wings long, rather narrow towards the apex, fuscous, the costal cell ferruginous. 

 9 mm. 



California. 



Einpimorplia geneatis sp. nov. (Fig. 105). 

 3Iale. Length 6.3 mm. — Black, occiput, pleurse and coxse lightly and finely 

 gray-pollinose. Eyes contiguous above the autennie ; face, sides of occiput, 

 cheeks, palpi and upper side of the first antennal joint bearing very many long 

 black hairs. Antennse one-fourth longer than the height of the head, slender, 

 black, first joint equalling one-third the length of the antenna, second joint and 

 style short. Dorsum of thorax black, opaque, with two faint gray vittfe ; verv 

 sparingly hairy, a longer bunch of black hairs above the root of the wings; mar- 

 gin of scutellum with about fourteen hairs; a bunch of black hairs present be- 

 tween base of the wings and the halteres. Sides of first three abdominal seg- 



TKANS. AM. ENT. SOC, XXVIII. (42) SEPTEMBEK. 1902. 



