422 GNATS OR MOSQUITOES — CHArTER XIII 



57. CULEX CANADENSIS, Theobald (Monog. II, p. 3). 



Tarsi dark, except the dusky-white last joint of hind legs, 

 which have also pale bands on the tibio-tarsal and next two 

 articulations; while the mid legs have but two bands, and the 

 fore pair are unhanded. Thorax deep chestnut-brown, with 

 curved golden-brown scales, paler and broader ones at the sides. 

 Abdomen dusky black, with basal white lateral patches, which 

 show on the dorsum of the fourth to seventh segments. 



Head dark brown, covered with pale golden curved, and with a few 

 black and ochreous upright forked scales and a border of pale scales 

 round the e^-es, black bristles projecting forwards, and a tuft of pale 

 golden scales between the eyes ; the lateral tiat- scaled portions, pure 

 white in the ^ ; palpi nearly black, those of the ^ with a white basal 

 band on the fourth joint. Pleurae purplish-brown, with several patches 

 of white scales. Legs yellowish-brown, darker on the upper parts of the 

 tibiae. Halteres with white stems and black knobs. Venter uniformly 

 ochreous. Length. — About 6 mm. 



Habitat. — Lake Sinicoe, Ontario : June and Jul^-. 



Group VI. — Culices with the AVings and Proboscis Unornamented, 

 AND WITH One or More of the Last Tarsal Joints all White 

 ON One or More Pairs of Legs. 



a. With last two jomts of all the legs white. 



58. C. longipalpis, Wulp. The pale banding of the remaining tarsal 



joints, and of the abdominal segments, is basal. 



b. With the last joints only of all the legs entirely white. 



59. C. leucacanthus. Loew. The pale bandmg of the remaining 



tarsal articulations is "on the articulations," and that of the 

 abdonunal segments, basal. 



c. With the last two tarsal joints of the hmd legs only all white. 



60. C. albitarsis, Theob. llemaining pale bands on the hind legs 



placed on the articulations. Fore and mid legs with a single 

 pale band on the tibio-tarsal articulation. 

 ' 5G. C. Canadensis, Thcob. Might very possibly be traced to this posi- 

 tion, vide ante ; No. 56. 



d. With the last jomts only of the hind kgs, aU white. 



61. C. dorsalis, Meig. The remaming tarsal banding is on the 



articulations. Thorax reddish, with indistinct creamy Imes. 

 Abdomen with pale basal bands and lateral spots. Tarsal 

 claws of $ , equal tuid simple. 



62. C. jjenicillaris, Rondani. Closely resembles the above, but the 



tarsal pale bands are less marked, and the tarsal claws of $ , 

 equal and toothed. The palpi of the <? , not banded. 



