220 CALIFORNIA ACADEMY OF SCIENCES [Pitoc. 4th Ser. 



nearly hyaline, the apical half grayish; costal and radial 

 veins heavy and black, the other veins lighter; Sc ends in C 

 slightly beyond base of Rs; Cu forks slightly distad of the 

 base of the R-M cross vein; costa prolonged beyond tip of 

 Rs nearly half way to Mi (see fig. 7). 



Female : Very nearly the same as the male in color and 

 structure. The last antennal joint proportionately shorter 

 than in the male. Genitalia brown. 



Holotype, male, No. 831, and allotype, female, No. 832, 

 Mus. Calif. Acad. Sci.; F. R. Cole, collector, March 14, 

 1919. 



Type locality, Forest Grove, Oregon. 



The writer collected three female paratypes at Forst 

 Grove and Hillsboro, Oregon, a little later in the year. The 

 species is very near sobria Johannsen. A single male of a 

 closely related species was collected at about the same time 

 and near the same place; this form is clearly separable only 

 by characters of the male genitalia. 



1 10. Boletina inops Coq. 

 One pair taken at Forest Grove, 1-10 (Lane) ; same 

 locality, X-ll (Cole). 



111. Leia winthemi Lehmann 

 Forest Grove, IX- 14 (Cole). 



112. Phthinia curta Johann. 

 Forest Grove, 11-20 and XII-17 (Cole). 1911, Fungus 

 Gnats of N. A., part III, p. 291. 



113. Coelosia flavicauda Winnertz 

 Hood River, X-ll (Cole). 



114. Coelosia pygophora Coq. 



Forest Grove, 111-21 (Cole). One specimen taken. 1904, 

 Proc. Ent. Soc. Wash., VI, p. 170. 



115. Rhymosia sp. A., Johann. 



Forest Grove, V-17 (Cole). 1911, Fungus Gnats of 

 N. A., part III, p. 310. 



