AEDES OXOXDAGENSIS 629 



Genitalia (plate 26, fig. 178) : Side-pieces nearly three times as long as wide, 

 tips rounded; outer lobe long, low; basal lobe small, convex, rounded, finely 

 setose. Clasp-filament moderate, slightly swollen mesially, a long terminal 

 articulated spine, and three small setag on the outer side before the tip. Harpes 

 elliptical, with revolute margins, tip revolute, thickened, pointed, the point 

 directed outward. Harpagones with columnar stem reaching to middle of basal 

 lobe of side-piece, an articulated terminal filament, broadly ligulate, narrower 

 on its basal third, its tip pointed. Unci invisible. Basal appendages small, 

 approximate, each bearing five setae. 



Like the other species of Aedes occurring on the northern prairies, the 

 larvae develop in the snow-water in the early spring. The species appears to 

 be rather rare and no larvae have been obtained. Mr. Knab, in June, obtained 

 females that came to bite in the daytime and males by beating bushes. 



Prairies of Western Canada to Utah. 



Oxbow, Saskatchewan, Canada, June 18, 1907 (F. Knab) ; Qu'Appelle, Sas- 

 katchewan, Canada, June 9, 1901 (T. JST. Willing) ; Carnduff, Saskatchewan, 

 Canada, May 28, 1901 (T. N". Willing) ; Regina, Saskatchewan, Canada, June 

 14, 1904 (T. N. Willing) ; Salt Lake, Utah, June 36 (H. S. Barber) ; Elsinore. 

 Utah, August 6, 1907 (E. S. G. Titus). 



AEDES ONONDAGENSIS (Felt). 



Culex curriei Coquillett (in part), Can. Ent., xxxiii, 259, 1901. 



Grabhamia curriei Theobald (in part), Mon. Culic, iii, 249, 1903. 



Culex onondagensis Felt, N. Y. State Mus., Bull. 79, 278, 304, 1904. 



Culicada onondagensis Felt, N. Y. State Mus. Bull. 79, 391&, 1904. 



Culex curriei Blanchard (in part), Les Moustiques, 285, 1905. 



Grabhamia curriei Dyar (not Coquillett), Journ. N. Y. Ent. Soc, xiii, 28, 54, 1905. 



Grabliamia onondagensis Dyar, Proc. Ent. Soc. Wash., vii, 48, 1905. 



Culex curriei Britton & Viereck (not Coquillett) Rept. Conn. Agr. Exp. Stat., 1904, 



271, 1905. 

 Aedes quaylei Dyar & Knab, Journ. N. Y. Ent. Soc, xiv, 191, 202, 1906. 

 Culex curriei Quayle (not Coquillett, in part), Ent. News, xvii, 4, 1906. 

 Culex lativittatus Coquillett, Ent. News, xvii, 109, 1906. 



OcMerotatus lativittatus Coquillett, U. S. Dept. Agr., Bur. Ent., Tech. Ser. 11, 20, 1906. 

 Ochlerotatus onondagensis Coquillett, U. S. Dept. Agr., Bur. Ent., Tech. Ser. 11, 21, 



1906. 

 Aedes quaylei Dyar, U. S. Dept. Agr., Bur. Ent., Circular 72, 6, 1906. 

 Ochlerotatus lativittatus Quayle, Bull. 178, Univ. Calif. Agr. Exp. Stat., 34, 1906. 

 Aedes quaylei Dyar, Proc. U. S. Nat. Mus., xxxii, 127, 1907. 

 Culicada onondagensis Theobald, Mon. Culic, iv, 340, 1907. 

 Culex (Grabhamia ?) lativittatus Theobald, Mon. Culic, v, 280, 1910. 

 Culicada onondagensis Theobald, Mon. Culic, v, 302, 1910. 



Original Description of Culex onondagensis: 



A specimen of this mosquito was taken in the vicinity of Lake Onondaga, Syra- 

 cuse, Sep. 19, 1904 and as it differs so markedly from previously known forms, it is 

 described herewith. 



Antennae dark brown, sparsely clothed with fine whitish hairs, with sparse basal 

 whorls of dark brown hairs on the segments, basal one brown, clothed internally 

 with yellowish scales. Palpi, short, dark brown, with a few silvery white scales 

 toward the apex. Apical portion of proboscis dark brown, basal part lighter with a 

 few whitish scales. Occiput rather thickly clothed with yellowish and silvery 

 scales, with a few black ones interspersed. Prothorax ornamented with a thick 

 covering of golden yellowish scales, becoming grayish posteriorly (in the specimen 

 this portion is somewhat rubbed). Scutellum similarly clothed and with no long 

 setae. Halteres capitate, basal and apical portions fuscous. Pleura brownish, 

 clothed with rather thick irregular patches of whitish scales. Abdomen dark brown, 

 with a distinct broad median and somewhat broken lateral stripes of silvery gray 

 scales slightly tinged with yellow. Basal bands of first and second abdominal 

 segments somewhat indistinct, those of the third and fourth well marked, the dorsum 

 of the remaining segments nearly covered with silvery white scales. Ventral sur- 

 face sparsely clothed with silvery gray and yellowish scales. Femora and tibiae 

 mostly yellowish with somewhat brown scales, which are flecked where thick with 



