I70 CONNECTICUT GEOL. AND NAT. HIST. SURVEY. [Bull. 



designate the narrow posterior piece which is next to the sciitellum 

 when the wing is closed (Fig. 17) and the term "corium" appHed 

 to the remainder of the basal area. The position of the internal 

 angle (Fig. 17) of the tegmen with relation to the end of the 

 posterior process is a character often mentioned. The wings of 

 most membracids show a decided terminal membrane (Fig. 17) ; 

 in a few cases the width of this membrane has been used as a 

 taxonomic character. 





internal 

 angle 



Fig. 17. Wing of a Membracid showing venation. Mtich enlarged. 

 Drawing by Dr. W. D. Funkhouser. 



Although in the systematic consideration of the family as a 

 whole the structure of the legs are of great importance, these 

 characters are of little significance in the discussion of species of 

 northern America due to the fact that the subfamilies in which 

 leg characters are of value are not represented in the northern 

 fauna. The only point in the diagnosis of Connecticut forms at 

 which it is necessary to note leg structure is in the separation of 

 the subfamilies Membracinae and Smiliinae in which the foliaceous 

 tibiae of the species of the former afford the simplest taxonomic 

 character for setting off the subfamily. 



Connecticut Species. 



Published records show a surprisingly small number of species 

 of Membracidae as having been actually reported from Connecti- 

 cut. In Van Duzee's recent catalogue* only three species {Ceresa 

 brevicornis, Stictocephala hitea and Cyrtolobus querci) are credited 

 to the State and there are very few references in literature to 

 Connecticut representatives of this family. This is due, however, 

 to a lack of records rather than to a paucity of species, since of the 

 seventy-five species which are here considered as forms which 

 may be reasonably expected to occur in the State, only five are as 

 yet unreported. 



* Van Duzee, E. P. Catalogue of Hemiptera North of Mexico, Univer- 

 sity of California Press, 1917. 



