1 6 KANSAS UNIVERSITY QUARTERLY. 



the incisures. Hy[)opygiiini black, the lamellae whitish, rounded, 

 with black margin, jagged near the apex, and curved black bristles. 

 Fore coxae yellow, with small black hairs in front near the inner side, 

 and some wiiite dust; middle and hind coxae yellow, the former con- 

 siderably, the latter slightly, brownish toward the base. Femora and 

 tibiae yellow, the hind femora not ciliated. Fore tarsi nearly twice 

 as long as the tibiae, not very slender; the first four joints plain, yel- 

 low; fifth joint as long as the third, black, flattened; fourth somewhat 

 flattened, but not otherwise modified. Middle tarsi blackened from 

 the tip of the first joint; hind tarsi wholly infuscated, still at the base 

 not decidedly black; the color suggests that the specimen may be 

 immature. Further material may show that the species properly 

 belongs in the group with hind tarsi pale at base. Wings subhyaline, 

 rounded at apex, the widest part beyond the middle, narrowed toward 

 the base. Beyond the double flexure the fourth vein runs in a gentle 

 curve parallel with the third vein, ending barely before the apex. 



Length, 5 mm.; of wing, 4.2 mm. 



A single male, Mass. (U. K.). 



Dolichopus lotaatus Ijoew. 



Numerous males and females, Brookings, S. 1). ; two from Agricul- 

 tural College, Mich.; June 14 and 16 are the dates of two specimens. 

 An easily recognized species; the female has a few black hairs mixed 

 with the yellow ones on the fore coxae, and lacks the lobes on the 

 wing and other sexual characters; otherwise as the male. 



Dolichopus agilis n. sp. 



Antennae black, first joint yellow; cilia of inferior orbit pale, of 

 tegulae black; legs yellow, hind tarsi wholly black. 



Male. Face yellowish gray; front shining green. Dorsum of 

 thorax shining green; pleurae blackish green, with gray dust. Abdo- 

 men shining green; hypopygium black, at base somewhat green or 

 bronze. Lamellae light yellow, twice as long as wide, the black 

 border wide at tip, which is a little jagged and has two or three 

 crooked black bristles; upper margin smooth, with short black hairs, 

 changing to yellow near the base. Fore coxae yellow, with minute 

 black hairs in front; middle and hind coxae black, tii)i)ed with yellow. 

 Femora and tibiae yellow, plain. Fore tarsi almost once and a half 

 the length of the tibiae; first three joints slender, stalk-like, yellow, 

 second and third each more than half as long as tlie preceding; 

 fourth joint very short, wider than long, black, a few long black 

 hairs above; fifth joint as long as the second, wide, black, with fringe 

 of appressed black hairs above. Empodium a little enlarged, forming 

 a snow-white plume reaching up half the width of the fifth joint, so 



