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THE CANADIAN ENTOMOLOGIST. 



bearing a small distal sensorium, segment V a large distal sen- 

 sorium, and segment VI one larger and two or three smaller ones 

 near by. Eyes black. The hind pair of legs entirely blackish, 

 except the basal ends of femora, which are paler; the two fore pairs 

 of legs brownish, excepting tarsi, which are black. Cornicles 

 represented by a black circle. Cauda broadly rounded and typical 

 of the genus. 



Average measurements for 6 specimens in balsam as follows: 

 Length of body 2.13 mm., width 0.66 mm.; length of middle tibia 

 0.81 mm.; hind tibia 1.43 mm.; length of first tarsal segment of 

 hind tibia 0.113 mm., of second tarsal segment 0.217 mm. Anten- 



Winged viviparous female. 

 (PI. VII, figs. 42-46.) 



Entire body covered with a conspicuous white flocculence, 

 beneath which the head and thorax are of a brownish colour and 

 the abdomen a greenish brown to ochreous brown, more often the 

 latter; abdomen with a row of inconspicuous setiferous dots, one 

 on each side of the median line. Legs, antennae and front of head 

 bearing prominent spine-like hairs as in the wingless form; the 

 cauda and tip of abdomen bearing many rather long hairs. Anten- 

 nae blackish, excepting basal half of III, which is pale brown; a 

 little more than half the body length; segment III longest; sensoria 

 as in the wingless forms. Eyes black. Hind legs blackish, ex- 

 cepting basal ends of femora; two fore pairs of legs similarly coloured 



