311 



a narrow one beyond middle on mid pair, a narrow one before and 

 another beyond middle on hind pair, and the apices of all pairs, apices 

 of tarsal joints, and whole of basal joint of hind tarsi. Wings with 

 8 small deep black spots as follows : on cross vein (sometimes paired), 

 at apex of third vein, below middle of petiole of cubitus, near base of 

 posterior branch of media and near apices of each branch of that vein 

 and of cubitus. Halteres whitish, knob with a black spot. 



Antennae about 1.5 as long as head and thorax combined. Thoracic 

 dorsum and scutellum with sparse rather long hairs. Legs slender; 

 basal joint of hind tarsi slightly shorter than the remaining joints 

 combined. 



Male. — Agrees with the female in color. 



Hypopygium large, projecting apical portion of lateral arm slen- 

 der, cuned. 



Length, i-i. 5 mm. 



Illinois locality, L'rbana, July 5-7, 19 15. several females at rest on 

 cypress tree on university campus, one in Natural Histor\- Building, 

 and one male on cvpress tree; one female August 2j. on c^-press tree 

 ( T. R. Malloch). 



This genus will run down to the second section of caption 3 in the 

 key to genera of Ceratopogonin-a: in my paper, and may be separated 

 from Ccratopogon, the genus there included, by the fusion of the first 

 and third veins of the wing, the absence of empodia, and the imequal 

 tarsal claws in the female. 



The early stages are unknown. 



FORCIPOMYIA ELEGANTULA, n. Sp. 



Female. — Pale yellow, marked with deep black. Head yellow, 

 upper portion of back of head and the antennal flagellum fuscous, eyes 

 black. Mesonotum slightly shining, with 3 glossy black vittae. the 

 median one bifid posteriorly and ending slightly beyond middle of disc, 

 the lateral pair abbreviated and conspicuously broadened anteriorly, 

 not extending to posterior margin : pleurae with 3 shining black spots, 

 one between fore and mid coxae, directly above it, the upper ex- 

 tremity of which does not reach upper margin of pleurae, and a third 

 below wing base: scutellum and postnotum glossy black. Abdomen 

 slightly shining, dorsum with anterior half of segments 2-5 and the 

 whole of segment 6 blackened : venter yellow, blackened at apex. Legs 

 whitish yellow, apical fourth of hind femora deep black. W ings 

 grayish, surface hairs fuscous with the exception of a rather large 

 patch over the apex of the third vein which is yellowish white. Hal- 



