AMERICAN DIPTERA. 



299 



fuscous Hypopygium concolorous, small, clavate, closed, the middle lamellte 

 ascending, oblong-ovate, with very short pubescence. Coxfe pale testaceous, 

 black pilose. Legs long, slender, testaceous, black pilose ; apex of the tibife fus- 

 cous; anterior tarsi black, except the base; the last joint of the posterior tarsi 

 black. Halteres yellowish. Wings long, subhyaline, ciuerascent, faintly tinged 

 with fuscous, stigma obsolete, veins fuscous. 3.5 mm. 



District of Columbia (Osteii Sacken). 



Eini>i$« abcirus Walker. 

 List Dipt. Ins., iii, p. 494. . 



Male —Fulvous, hoary. Head hoary, thinly clothed beneath with black hairs ; 

 hypostoma black; lip tawny for more than half its length, black thence to the 

 tip nearly as long as the body ; eyes bright red ; feelers black ; first and second 

 joints dark tawny; chest and breast hoary with a tawny tinge; chest adorned 

 with four grav stripes, between which are rows of short black bristles; the 

 hinder border of the chest is beset with longer black bristles; abdomen black 

 shining; legs tawny, beset with short black hairs and bristles; hips black; feet 

 piceous towards the tips; foot-cushions and claws tawny ; wings colorless; wing- 

 ribs and poisers bright tawny ; veins piceous, tawny towards the base and along 

 the fore borders. 5 mm. 



Georgia (Abbot). 



Einpis eudaniidas Walker. 

 List Dipt. Ins., iii, p. 493. 



Male.—FaUovis, head cinereous, narrower than the thorax, clothed with short 

 black hairs; eyes red ; mouth tawny, with a black tip, as long as the chest; 

 feelers tawny, black towards their tips, longer than the head; chest paler on 

 each side, beset with short black hairs, adorned on the back with four gray 

 stripes; abdomen fulvous, apically black ; legs tawny, clothed with short black 

 hairs; hips and trochanters gray; knees black ; tips of the feet piceous; a short 

 black' stripe on each of the four front thighs; wings nearly colorless, tawny 

 towards the base. 6 mm. 



Eiupis ainytis Walker. 

 List Dipt. Ins., iii, p. 493. 



jfa?e.— Fulvous. Head black, much narrower than the chest; eyes dark red ; 

 mouth tawny, with a black tip, much shorter than the chest; feelers black; 

 chest and breast tawny ; disc of the former black ; abdomen black, dull, tawny 

 along each side; legs tawny, clothed with short black hairs; knees and tips of 

 feet black; wings colorless; wing-ribs and poisers tawny; veins piceous. tawny 

 towards the base. 5 mm. 



New York. 



Empis ollius Walker. 



List Dipt. Ins., iii, p. 493. 



ii'emaie.— Fulvous. Head gray, thinly coated beneath with black hairs; hypo- 

 stoma black, shining; lip dark tawny, piceous at the tip, shorter than the body ; 

 eyes bright red ; feelers black ; chest and breast dull tawny ; chest adorned with 

 four brown stripes, between which are rows of short black bristles ; the hinder 



TRANS. AM. ENT. SOC, XXVIII. AUGUST, 1902. 



