FUNGUS GNATS OF NORTH AMERICA. 3II 



cous, the venter largely yellowish. Coxae and legs yellow, tarsi 

 and tibial spurs brown. Two scutellar setse, one basal hind 

 coxal seta. Wings yellowish hyaline, subcosta short, ending 

 free (Fig. 230). Halteres yellow. Los Angeles Co., Cal., Feb. 

 (W.M.W.) 



2. Rhymosia sp. b. 

 Female. Length 4.5 mm. Head fuscous, the scape, basal 

 joints of flagellum, and palpi yellow. Thorax yellow, the dor- 

 sum of the mesonotum, the lower margin of the pleura, the 

 scutellum except the margin, and the metanotum, fuscous; 

 hairs yellow, of the dorsum dense, depressed, brownish; 4 

 scutellar set?e. Tergites of abdomen fuscous, sternites yellow. 

 Coxae and legs yellow, tarsi and tibial spurs brown ; one basal 

 hind coxal seta. Wing yellowish hyaline, subcosta ends in Ri 

 (Fig. 231). Halteres yellow. Selkirk .Mts., B. C. (J.C.B.). 



3. Rhymosia scrripes n. sp. 

 Male. Length 3 mm. Head fuscous, the scape and palpi 

 yellow ; antennae half longer than the thorax. Thorax yellow, 

 the 3 stripes of the mesonotum, the scutellum and metanotum 

 fuscous ; hairs yellow, those of the mesonotum darker, setse 

 black ; 2 scutellar setae. Dorsum of abdomen brownish, venter 

 yellow; hypopygium yellow, small (Fig. 121). Coxae and legs 

 yellow, tarsi and tibial spurs brown ; one posterior basal hind 

 coxal seta ; third and fourth fore tarsal joints each with 7 or 8 

 short, stout, curved, claw-like spines, those of the third joint 

 situated distad of the middle and more blunt. Wing yellowish 

 hyaline, subcosta short, ends free (Fig. 232). Halteres yellow. 

 Ithaca, N. Y. Aug. 



4. Rhymosia in flat a n. sp. 

 Male. Length 5 mm. Head fuscous ; antennae less than 

 twice as long as the thorax, fuscous, the immediate base of the 

 flagellum, the scape, and the palpi yellowish. Setae of thorax 

 and the 2 of the scutellum black ; the hairs appressed, silvery. 

 Mesonotum with 31 sometimes wholly confluent fuscous stripes, 

 the disk of the scutellum, metanotum and the pleura in large 

 ])art fuscous. Abdomen yellow, the first segment, the last seg- 

 ment in large part, the dorsum of each intermediate segment. 



