PR0CEEDINC4S, 1919 jg 



been recorded from California, and its range might be expected to extend 

 northwards. It is easily distinguished from Ceresa basalis, which it 

 resembles in form, by its larger size and longer lateral horns. Its 

 length is 9 m.m., colour bright green, fading in cabinet specimens to 

 dull yellow. 



Ceresa bubalus is of considerable economic importance where it is 

 abundant, on account of the injuries done to young orchard trees and 

 nursery stock by the female when ovipositing. The eggs are inserted 

 in a slit in the bark and the scars thus caused enlarge with the growth 

 of the tree, forming dead areas of bark which are a starting point for 

 fungous growths and boring insects. Ceresa basalis oviposits in a 

 similar way but the wounds heal over and are not so serious. 



Glossonotus univittatus. Further examples of this species have 

 been taken, two by me at Enderby on Aug. 22nd, and one by Mr. 

 Ruckell at Chilcotin on July 23rd. The Okanagan specimens were 

 taken on willow, and I found it, as elsewhere, very scarce. 



Stictocephala pacifica. A few specimens have been received from 

 \'ernon (July 29th, M. H. R.), thus extending the known range of this 

 species to the Interior of British Columbia. 



Campylenchia latipes. On Aug. 16th I took a number of these at 

 Penticton on Goldenrod. They were in little parties of four or five 

 and were attended by ants who were evidently herding them, as they 

 do with other species of Membracidae elsewhere. So long as the ants 

 were undisturbed the tree-hoppers made no attempt to move away, but 

 whenever the ants were driven ofif the tree-hoppers seemed to take 

 fright and decamped in all directions. 



CORRECTIONS TO PROCEEDINGS No. 12 



Page 13, line 34. for astulatus read ustulatus. 

 Page 15, line 19, for Eucanthus read Evacanthus. 

 Page 16, line 13, for commisuralis read commissuralis. 



