58 STUDIES IN NORTH AMERICAN MEMBR ACIDM 



more or less conspicuous and the pronotal horn is longer and 

 more erect. This species lives on locust and is common and 

 widely distributed in the eastern United States. 



2. Thelia Uhleri Stal. PI. 2, fig. 1. 



Apparently rare. I have taken it about Buffalo and in 

 Kansas and have seen others from Canada. I have seen only 

 males in which sex the color is of a uniform rich rufo-piceous. 



Genus Glossonotus Butler. 



This genus was founded by A. G. Butler in 1877 (Cistula 

 Entomologica, II. p. 222) for Membracis acuminata Fabr. and 

 its allies in which the dorsal pronotal process is tongue-shaped, 

 nearly or quite erect, and placed well forward. Our described 

 species may be distinguished by the following key: 



Dorsum with a conspicuous lenticular white vitta behind the 



crest, 1. 



Dorsum without such white vitta, 2. 



1. Dorsal crest more slender, inclining distinctly forward; 



color a uniform griseous shading to brown along the 

 borders of the pale dorsal vitta; elytra with a fuscous 

 vitta at apex, 3, univittatus Harris, 



-. Dorsal crest broader, especially in the female, nearly 

 vertical; color more yellowish grey, the dorsal horn 

 abruptly reddish brown ; apex of the elytra with a piceous 

 cloud which is not produced forward in a vitta, 



4, Godingi VanD. 



2. Brown with a large angular whitish spot on either side be- 



hind the humeri connecting with the pale metopidium and 



with a pale band before the apex, 5, cratcegi Fitch. 



Color a nearly uniform fuscous brown, 3. 



3. Humeral angles prominent, acutely triangular; dorsal crest 



sinuated anteriorly ; pronotum with longitudinal rugae 

 posteriorly: length about 10mm. 1, acuminatus Fabr. 



-. Humeral angles shorter, obtuse; dorsal crest vertical and 

 rectilinear anteriorly; pronotum without distinct longitu- 

 dinal rugae posteriorly; length ubout 7mm , 



2, turriculatns Emm. 



