36 KANSAS UNIVERSITY SCIENCE BULLETIN. 



knees yellowish, tarsi yellowish, last joint black ; wings, except 

 base, light brown, first posterior cell open. Length, 9 mm. 

 Habitat ? 



PIPUNCULID^. 



Pipunculus nigricornis, n. sp. 



Male : Head black, occiput, front above the antennae, and 

 face silvery pollinose, mouth-parts yellowish brown, antennae 

 black, third joint short acuminate, arista black, swollen at base ; 

 thorax black, mesonotum brownish pollinose, pleurae and meta- 

 notum silvery pollinose, scutellum subopaque, halteres black 

 with base brown ; abdomen black, subopaque, first segment 

 with narrow posterior border, second, third and fourth seg- 

 ments with an interrupted posterior band which widens later- 

 ally, and the fifth segment with a broad posterior band, white 

 pollinose, hypopygium black, with cleft to the right of me- 

 dian line ; coxae black, silvery pollinose, femora, except both 

 ends, tibia? narrowly in the middle, and the last joint of the 

 tarsi, black, other parts yellow, all femora grayish pollinose 

 except the hind ones on inner side ; wings hyaline, stigma 

 fuscous, small cross-vein slightly before the tip of the auxiliary 

 vein and at the junction of the basal and middle thirds of the 

 discal cell. Length, 4.2 mm. ; wings, 5 mm. 



One specimen. Collected by the writer near Atherton, Mo., 

 May 19, 1901. 



Pipunculus fuscitarsis, n. sp. 



Male : Head black, occiput, front near antennae and face sil- 

 very pollinose, mouth-parts brown, antennae black, third joint 

 short acuminate, in certain lights with a whitish reflection, 

 base of arista swollen ; thorax black, mesonotum brown polli- 

 nose, humeri inclined to yellow, pleurae and metauotum silvery 

 pollinose, scutellum concolorous, halteres dark brown; abdo- 

 men black, first segment with a narrow jDOSterior band white 

 pollinose, also a few black bristly hairs on each side, the re- 

 mainder of abdomen uniformly brownish pollinose, hypopygium 

 subshining black, cleft to right of median line ; legs largely 

 black, uniformly gray pollinose except hind femora on inner 

 side, knees and tips of tibiae yellow, tarsi brownish with last 

 joint black ; wings, except base, slightly tinged with fuscous, 

 stigma dark brown, small cross-vein opposite tip of auxiliary 



