32 KANSAS UNIVERSITY SCIENCE BULLETIN. 



bearing white pile, occiput black with whitish pruinose ; anten- 

 nae yellow, short hairs of first and second joints black, arista 

 black, slightly enlarged at base where it is also sparsely plu- 

 mose ; thorax green, with mesonotum and scutellum finely 

 scrobiculate and covered with yellow pile, very narrow white 

 line along dorsopleural suture, post-alar callosity with a yellow- 

 ish cast, pleura \vith violaceous reflections and white pile, 

 hal teres yellow ; abdomen subshining bronze, wholly covered 

 with yellow pile ; coxte yellow, base of middle and posterior 

 ones shiny green, femora light yellow, middle and posterior 

 ones brownish green near apex, tibi£G and tarsi, except last 

 joint which is brown, light yellow, thickly covered with short 

 white pile ; wings hyaline with a smoky tinge, except extreme 

 base, stigma light greenish yellow. Length, 9.7 mm. 



One specimen ; Guito, Mexico. 



This specimen I found in the Townsend material, now form- 

 ing a part of the collection in the University of Kansas, It 

 bore a manuscript label of the above name, and as I have been 

 unable to find a published description of it, I take pleasure in 

 presenting one here. 



ACROCERID^. 



Opsebius pterodontinus O. S., Berl. Ent. Zeit., Bd. XXVII, 1883, Heft II. 

 Opsebius agelence Mel., Ent. News, Vol. XIII, No. 6. 



That Mr. Melander overlooked Osten Sacken's species is evi- 

 dent from the fact that he did not include pterodontinus in his 

 table. 



CONOPID^. 



Oncomyia propinqua, n. sp. 



Male : Black, with uniform grayish pollen, subshining ; face 

 and cheeks yellow, in certain lights silvery, front luteous, black 

 on upper half, with a mixture of black and yellowish pile, 

 occiput black on upper half, antennge rufous, upper border and 

 distal end of third joint black, arista brown, second joint 

 scarcely longer than the third, proboscis and a spot on clypeus 

 black; mesonotum, scutellum and pleurcie uniformly grayish 

 pollinose and yellowish pilose, halteres yellow; abdomen with 

 first and second segments and venter of a reddish cast, remainder 

 uniformly cinerous pollinose and yellowish pilose ; legs wholly 

 blackish, except base of tibse, w^hich are yellowish, pulvilli and 



