\'oL. IX] COLE & LOVETT—NEW OREGON DIPTERA 255 



hypopygium small; fifth sternite short, the processes short, and apically 

 rounded ; legs elongate, slender, all tarsi longer than their tibiae ; fore and 

 mid tibia each with one weak posterior median bristle ; hind femur with 

 three or four long widely-placed antero-ventral bristles, and a long one at 

 middle on postero-ventral surface ; hind tibia with a short antero-ventral 

 bristle, and a much longer antero-dorsal one, the preapical dorsal bristle at 

 one-fifth from apex of tibia. Last section of fourth vein twice as long as 

 preceding section, inner cross-vein just beyond apex of first. Length, 

 2-5 mm. 



Type. Corvallis, Ore., May 2, 1915 (A. L. Lovett). Ore. 

 Exper. Sta., Accession No. 1796. 



46. Chironomus colei Malloch, new species 



Male : Yellowish testaceous, subopaqaie ; antennal plumes dark at apex 

 and base of flagellum; thorax with three reddish vittse; postnotum brown. 

 Abdomen with dorsum of segments five and six and most of hypopygium 

 black; apices of femora and bases of tibiae narrowly fuscous, the mid 

 pair inconspicuously so; wings whitish, with a small brown dot at bases of 

 veins, a fuscous median fascia which does not extend to margins, and a 

 small fuscous patch at apices. 



Fore tarsi without long hairs, basal joint about 1.25 as long as fore tibia 

 and 1.75 as long as second joint; mid and hind legs with long hairs; costa 

 extending almost to apex of wing. 



Length, 5 mm. 



Type and paratvpe, Forest Grove, Ore., June 3, 1918, at 

 light (F. R. Cole)'. 



This species closely resembles tceniapennis Coq., nephopterus 

 Mitch., and pulchripennis Coq., but may be readily separated 

 from any of these species by the very much narrower wing 

 fasciae and the much less conspicuously blackened legs. 



