216 THE CANADIAN ENTOMOLOGIST. 



angle of the occiput ; prothorax with a longitudinal intermediate ridge, 

 transversely streaked with yellow and brownish black ; hemelytra 

 sprinkled, and towards the base almost streaked, with black and yellow. 

 In other respects this species resembles C. striata. 



398. Corixa i'lanifrons Kirby. — Length of body 4 lines. Two 

 specimens taken with the preceding. 



This species differs from the preceding in having the under side of the 

 body black, with two pale spots on each side of the breast, and the anal 

 half of the abdomen pale-yellow. The head is yellow, the vertex is ridged 

 longitudinally and separated from the front by a transverse curvilinear 

 ridge ; and from which the anterior part of the face is inflexed, plane or 

 slightly concave ; in other respects this species exhibits exactly the same 

 characters with C. carinata. They may perhaps be sexual varieties. 



[285.] FAMILY NOTONECTIDiE. 



399. Notonecta insulata Kirby. — Length of body 6^3 lines. A 

 single specimen taken. 



Body underneath black, above yellowish. Head yellowish, with a 

 brownish longitudinal stripe between the eyes, which are reddish ; scutel- 

 lum very black, velvetty ; hemelytra with the lateral margin brown spotted 

 with yellow ; the posterior half of the hemelytra is brown anteriorly, black- 

 brown in the middle, fuliginous at the apex ; in this darkened portion 

 anteriorly is a yellowish triangle connected with the last marginal spot, and 

 posteriorly is a white kidney-shaped spot followed by the sooty apex ; 

 breast very hairy with longish fuliginous hairs ; legs yellowish. 



VII. HOMOPTERA. 



FAMILY CERCOP11U 



400. Cercopis marginella Fabr — Length of body S/i unes - 

 Taken with the preceding, and at Carlton-house in April. 



Body black, dotted and inscribed with white. Hemelytra embrowned ; 

 nervures black ; lateral margin sanguine : margin of the abdomen edged 

 with white. 



