244 A. L. MELANDER. 



the cheeks, but the clypeus extends below the eyes. The rufescence 

 at the knees is not conspicuously well marked. Halteres black. 

 Discal cell blunt. This is a Clinocera in Mik's sense. 



Clinocera maculata Loew. 

 Wien. EDt. Monatschr. iv, 79. 



Olivaceous, thorax obsoletely bilineate, pleura; and coxae wbite-pruiuose, veu- 

 ter glaucous ; fenjora aud tibia- testaceous, tarsi black. The anterior branch of 

 the third vein is marked with a fuscous spot at its base, ascending to the apex of 

 the second vein, and with another smaller spot at its apex. Halteres black. 

 3 mm. 



Washington, D. C. (Osten Sacken). 



Clinocera lineata Loew (Figs. 61, 62). 

 Cent., ii, 50. 



Black, dusted with olivaceous green above, subopaque. Antenna- black, very 

 short; cheeks moderate, together with the face white-poUinose ; palpi black. 

 Two shining vittie on the thoracic dorsum, separated by a black line, and mar- 

 gined outwardly by a black vitta. Scutellum of the same color as the thorax ; 

 the lower half of the pleurje covered with white pollen. Abdomen somewhat 

 shining. Legs slender, almost bare, the base of the coxte often, the knees, the 

 very apex of the tibiae and the last joint of the tarsi always fuscous ; no setulse 

 jiresent at the apex of the femora; empodium minute, equal to the pulvilli ; 

 claws minute. Halteres dark fuscous. Wings lightly infumated, the veins dark 

 brown, no costal setulaj ; the second longitudinal vein sends a cross-vein to the 

 costa of the wing before its end ; the third longitudinal vein undulating, the an- 

 terior branch reaching forward more than in the other species ; a clear spot pres- 

 ent in the very apex of the discal cell. 2.3 mm. 



Pennsylvania (Osten Sacken). Three specimens from Seattle, 

 Washington, notwithstanding their distant locality, I take to belong 

 to this species. 



The postocular bristles are regularly arranged in an interrupted 

 semicircular row of about fifteen in number, and are not supplanted 

 by pale cilia beneath. The two outer vittse of the thorax bear the 

 dorsal bristles. The cross-vein in the marginal cell is wanting in 

 these western specimens, but its place is indicated by a sharp 

 upward bend of the second vein ; but a trace of the anal vein 

 is left. 



There is much greater resemblance between Clinocera appendicu- 

 lata Zetterstedt (European) and Clinocera (^Rcederia) dolicheretma 

 than between Clinocera binotata Loew and lineata Loew, yet the 

 former two are generally different, while the latter fall together 

 according to Mr. Mik's arrangement. 



Clinocera lineata is intermediate between the other species and 



