IQ B. C. ENTOMOLOGICAL SOCIETY 



thorax and abdomen pale ; antennal joints of flagellum elongate ; wings 

 hyaline, subcostal vein terminates in Rj proximad of the centre of cell 

 Rl ; this cell is three times as long as wide, R4-5 strongly arched, 

 peduncle of cell Mi 234 times as long as R-M cross-vein, cubitus forks 

 proximad of centre of basal cell Rj anal vein strong but does not reach 

 the margin. Knob of halteres brown, fore metatarsus about two-thirds 

 as long as the tibia. Savary Island, 8:I\':17. 



Rhymosia prolixa sp. nov. 



Male. Length Byi m.m. Yellow, including the two basal joints of 

 the flagellum, palpi and hypopygium ; thorax with reddish brown vittae ; 

 tergites with triangular brown saddles. Setae of thorax and scutellum 

 Ijlack.^ Hypopygium longer than last abdominal segment, black pilose. 

 A black spot on hind femora at basal fourth. Legs slender, long; coxae 

 and femora yellow, tibiae dusky yellow and tarsi fuscous. Tibial spurs 

 black. Wings yellowish hyaline. Subcosta ends free ; petiole of media 

 slightly more than half as long as the R-M cross-vein ; fork of cubitus 

 far ])roximad of the proximal end of the cross-vein. Savary Island, 

 S:\'1I;17. 



Rhymosia faceta sp. nov. 



Male. Length 4 m.m. Yellow, including basal joints of flagellum, 

 palpi and hypopygium. Head fuscous ; Ihorax subfuscous on dorsum 

 and pleurae ; coxae, femora and tibiae yellow ; tarsi fuscous. Abdomen 

 with wide yellow fasciae on 2nd to 5th segments inclusive, cephalad. 

 Wings hyaline with slight cinereous tinge along costal margin. Setae 

 of thorax and scutellum black. Fore metatarsus subequal to tibia. 

 Two scutellar setae. Subcosta ends in Ri. Petiole of media about 

 two-thirds as long as R-M cross-vein. Cubitus forks under proximal 

 end of this cross-vein. Anal vein extends beyond branch of cubitus. 

 Halteres yellow. \'ancouver, B. C, 11:11:17. 



Rhymosia seminigra sp. nov. 

 Male and Female. Length 6 m.m. Dark brown ; head black ; basal 

 joints of antennae and palpi yellow; humeri j-ellow ; dorsum of thorax 

 dark velvety brown, with pale appressed hairs and black setae ; scutel- 

 lum and metanotum brown; two scutellar setae, black; abdomen dark 

 brown, sixth segment wholly black, segments 2 to 5 with yellow long- 

 itudinal bands on the sclerites dorsad, rounded caudad, leaving the 

 posterior margin of these segments fuscous ; hypopygium large, yellow 

 with black hairs ; legs yellow, hind coxae with fuscous stripe, one basal 

 coxal seta, hind femora darker apically, tibia and tarsi subfuscous to 

 fuscous, fore metatarsus 1J4 length of tibia; apical half of wing cin- 

 ereous, proximal half hyaline, subcosta ends in Ri ; petiole of media 

 and R-M cross-vein subequal; fork of cubitus under fork of media, anal 

 vein ends under fork of cubitus. Three males- and three females taken 

 at Vancouver and Savary Island, March, April and October. 



