32 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



Subfamily Cixiinae. 



Oblong depressed insects usually with rather broad elytra which 

 are frequently more or less mottled with fuscous and dotted along 

 the veins. The females have a cottony substance either side of the 

 oviduct. 



Key to Genera. 



i. Hind tibiae armed with two or three spines 2 



Hind tibiae unarmed 3 



2. Base of the vertex angulate-emarginate ; mesonotum normally 



five-carinate Oliarus, p. 32 



Base of the vertex broadly arcuate ; mesonotum tricarinate 



Cixius, p. 33 



3. Vertex very narrow, its sides parallel or slightly divergent anteri- 



orly ; front and clypeus elongated Oecleus, p. 34 



Vertex broader, narrowed anteriorly; front and clypeus together 

 elliptical Myndus, p. 34 



Oliarus Stal 



This genus has the vertex quite broad, about as wide as the eyes, 

 with its base angulately emarginate, and the mesonotum in our 

 species furnished with five carinae. It is distributed over nearly 

 all parts of the world and is rich in species. 



Key to Species. 



1. Elytra pellucid or nearly so, sometimes varied with brown 2 



Elytra smoky-fuscous, at least at apex 3 



2. Larger, 6-7 mm. ; elytra more or less maculated ; the veins white, 



dotted with brown at their apex quinquelineatus 



Smaller, 4-5 mm. ; elytra immaculate, their veins heavy and fuscous 

 on apical third fransciscanus 



3. Smaller, 4-6 mm. ; elytra clouded on apical third only humilis 



Larger, 6-7 mm. ; elytra entirely fuscous, the stigma and costal 



nervure whitish cinnamomeus 



O. quinquelineatus (Say). 



Jour. Acad. Nat. Sci. Phila., vi, 241, 1830. 



This large maculated species is common throughout the eastern 

 states and Canada, and extends its range westward to Colorado, 

 but it does not seem to have been reported from Connecticut, 

 where, however, it must occur. 

 O. fransciscanus (Stal). complectus Ball. 



Freg. Eugen. Resa., Ins., 273, 1859; Can. Ent, xxxiv, 152, 1902. 



This small black species with whitish-hyaline elytra is found 

 from Maine to California. 



Scotland, 27 July, 1904 (B. H. W.) ; New Haven, 26 June, 23 July, 1910, 

 9 July, 191 1, 11 July, 1920, 18 June, 1921 (B. H. W.). 



O. humilis (Say). (PI. iv, 2.) 



Jour. Acad. Nat. Sci. Phila., vi, 241, 1830. 



This has much the aspect of the preceding except that it is a 

 little broader and has the apical one-third of the elytra infuscated. 



