scuooER.J CANADIAN FOSSIL IXSECTS. 15 



broad and have rather a pointed apex. The veins of tlie wings show 

 only enough to make clear their cercopid structure. 



Length of body, 9""™; of same, including closed wings, 14.5'""'; of 

 tegmina, 12"™; breadth of head, 1.8"'"'; of thorax, 4""". 



North Fork of Similkameen River. — One specimen. No. 89ab, Dr. 

 O. M. Dawson, 1888. 



Cercoi'Is Fabricius. 



This genus is here used in the sense employed in my Tertiary In- 

 sects of North America. As there stated, a number of species have 

 been referred to it from the European tertiai'ies and, notably, from 

 Radoboj ; but most of them do not belong here. One of the species 

 here recorded has before been published ; the other is new. 



Cercopis sehvyni. 



Cercopis sehm/yii 'i^c\:DD., Rep. Frogr. Geol. Surv. Can., 1877-'78, 

 184-185 B (18V9) ; Id., Tert. Ins. N. A., 318, pi. ii, figs. 14, 15 (1890). 



A pair of nearly perfect tegmina, reverses of each other, represent 

 a species allied, but rather distantly, to the gigantic species of Cer- 

 copinse described by Heer from Radoboj. It differs from them all in 

 neuration, in the form of the costal border and of the apex. The 

 portion of the wing below the straight sutura clavi is broken away. 

 The basal half of the costal margin is strongly and rather uniformly 

 arcuate, but more strongly close to the base ; the apical half of the 

 same is nearly straight ; the apical margin is a little obliquely and 

 roundly excised, gently convex, the tip roundly angulated. The costal 

 vein parts from the common trunk close to the base and follows close 

 to the margin, terminating at about one-third way to the tijj ; the 

 radial vein is directed toward the middle of the outer half of the costal 

 border, until it forks, a little before the middle of the wing, when 

 both straight branches run subparallel toward the tip ; the ulnar vein 

 also forks once, half-way between the base and the fork of the radial 

 vein, and its straight branches, with those of the radial vein, subdi- 

 vide the outer half of the wing subequally, all being evanescent toward 

 the apical margin ; the sutura clavi reaches as far as these veins are 

 visible. 



Length of wing, 16.5"""; breadth of wing at tip of sutura clavi, 

 5'"'" ; length of sutura clavi, 14'"'". 



Nine Mile Creek. — One specimen, with its reverse, Nos. 64 and 65, 

 Dr. G. M. Dawson, 1877. 



