No. 3.] HYGROCELEUTHUS AND DOLICHOPUS. 



145 



ochraceous. Antennae sericeous, black, except underside of first joint, which 

 is indistinctly reddish, very like those of a female Hygroceleuthus j first 

 joint longer than second, short, hairy above ; second with a crown of black 

 bristles ; third short, deep, subtriangular. Arista sericeous. Vertex blue 

 green in certain lights, violet in others, somewhat shining. Intraocular 

 ciUa pale ; six of the supraocular cilia black. Thorax dull, bluish on dor- 

 sum ; posterior declivity and scutellum shining green. Abdomen shining 

 green dorsally, cupreous toward apex, transverse margins of segments pice- 

 ous. Hypopygium piceous with greenish tint, shining, and not sericeous on 

 inner face ; lamellae rounded, rather short, white translucent, with a narrow, 

 black, apical border, jagged and fringed with black hairs. 

 Pleurae glaucous, as are the middle and hind coxae, except 

 tips. Front coxae yellow with a basal glaucous-piceous 

 spot on the outer side ; front surface with a coating of short 

 black hairs, besides apical bristles. Legs yellow, entirely 

 unornamented ; the darker places are : hind tarsi and outer 

 fourth of hind tibiae black, tip of hind femora more evi- 

 dently on upper surface black ; the infuscation of fore and 

 middle tarsi begins at middle of first joint. Hind femora 

 with a single ante-apical bristle and not ciliated beneath ; hind tibiae with 

 no evidently glabrous space. Wings normal, rather dusky anteriorly ; 

 without costal thickening at tip of first vein ; fourth vein unbroken, beyond 

 bend gradually converging with third, but almost subparallel with it ; no 

 indention in posterior margin ; anal angle full. Tegulae and halteres yellow, 

 tegular cilia black, rather short and stout. 



Fig. 21. — D. 



apheles: male 



lamella. 



One male collected by Dr. Wm. M. Wheeler near Milwaukee, 

 Wis., June 28, 1895. 



This unique species is allied nearest to those species grouped 

 about melanocems Loew and incistiralis Loew. 



The addition of the last four species has necessitated the 

 following modification of Divisions 52 to 56 of Professor 

 Aldrich's table.i 



Front legs of male ornamented .... 



Front legs plain ...... 



Fourth joint of fore tarsi of male not flat . 

 Fourth joint of fore tarsi of male flat, black 

 Antennae wholly black ; hind femora of male ciliated 

 First antennal joint lighter below 



2 



3 



discifer Stan. 



pertiix sp. nov. 



4 

 6 



Front coxae with light hairs 



Front coxae with dark hairs in front 



, pantomimtis sp. nov. 



1 Kan. Univ. Quart. Vol. ii, No. i, p- 5. 



