10 THE CANADIAN ENTOMOLOGIST. 



quite variable, some individuals Qorresponding very closely with 

 Mr. Uhler's description o^/assus divisus, with which this may prove 

 identical. 



Thavmotettix eburata n. sp. Form and aspect of ^///^//ar/a Say, to which 

 it is closely related, Above brown with a large white discal spot, 

 beneath white ; venter marked with black and yellow ^ , or whitish 

 $ . Vertex pale yellow, whitish on the base, slighly suffused with 

 ferrugineous on each side near the eye ; a central impressed line 

 extending about halfway to the apex. Face whitish, slightly tinged 

 with yellow. Antennge white, setae brown. Pronotum and scutellum 

 dark ferrugineous or fuscous, the latter paler with a transverse im- 

 pressed black line before the apex, behind which the edges are narrowly 

 yellow, and slightly calloused. Hemielytra ; — Clavus fuscous, the 

 common disc with a large, obtusely cordate, ivory white spot which 

 is slightly suffused with yellow ; behind this spot is a dark area. 

 Costal half of the corium milky white, almost opalescent, tip broadly 

 fuscous ; discal half brownish ferrugineous, paler posteriorly, and 

 shading to fuscous along its junction with the white costal area. 

 Beneath and legs white, immaculate ; small spines at tip of the tibiae 

 and tarsal joints slightly embrowned ; claws black. Venter black, 

 posterior edge and disc of the segments yellow ; the latter with a 

 central black line, represented by dots on the three basal segments ; 

 convexivum yellow ; tergum black. Wings milky hyaline, veins 

 faintly brownish. The female differs from the male in being some- 

 what paler, in having the discal spot of the elytra more yellowish, 

 and the abdomen pale yellow or whitish. In the venation of the 

 elytra and other structural features this species agrees very closely 

 •vf'iih. clitellaria. The ^ has the last ventral segment slightly con- 

 cave posteriorly; valves obtusely triangular, black; plates white, 

 sparsely covered with long concolorous hairs. The $ has the last 

 ventral segment black, with the lateral margins pale ; as in clitellaria 

 it is deeply incised each side of the middle, leaving a central tongue, 

 which is minutely emarginate at tip ; pygofers pale, suffused with 

 brown toward the central groove, and fringed with long pale hairs. 

 Length, ^ 5 mm.; % 5/4-6 mm. A male was swept from grass 

 near a rivulet at Bracebridge ; also t^kep in the vicinity of South 

 Falls. 



