62 EDWARD P. VAN DUZEE 



Genus LIOTROPIS Uhler. 



Bergroth, in Revue d'Entornologie, Vol. X, p. 228, 1891, substi- 

 tuted the name Dendrocoris for that given by Uhler, but doubtless, 

 for some very good reason, this change was not accepted by Lethi- 

 erry & Severin in their Catalogue. Our four species may be distin- 

 guished as follows : 



Head uot longer than broad ; inner angles of the connexivum marked with a 

 square black spot f ruticicola. 



Head longer than broad ; connexivum with or without spots on the outer mar- 

 gins, immaculate within 1. 



1. Head broad at apex ; outer edges of the connexivum with a black spot at each 



incisure Iiiinieralis. 



Head distinctly narrowed at apex 2. 



2. Humeri prominent, forming an obtuse or right angle; anterior one half of the 



pronotum blackish ; punctures in part dusky . . . .oonlamiiiatuM. 



Humeri rounded; punctures coneolorous or nearly so; form more elongated 



and regularly oval pint. 



Liiotropis liuineralis Uhler. 



Our most abundant and widely distributed Liotropis. I liave 

 looked in vain for it about Buffalo, but it is found throughout New 

 England, in New Jersey, Maryland, Pennsylvania, Ohio, Georgia, 

 Iowa, Kansas, Colorado and California. In Colorado I iiave beaten 

 it in numbers from scrub oaks growing in the Garden of the Gods, 

 and on the adjacent mountain sides, and in most similar situations 

 where I there collected. 



Liotropis friiticicola Bergroth. 



The only specimen I have of this species was kindly given to me 

 by Mr. Otto Heidemann. It is a male captured in Key West, 

 Florida, and I have seen a female taken in the same State by Mrs. 

 Slosson. This species may be best distinguished by the short and 

 broad head ; the third joint of the antennse is shorter than the first 

 two, while in humeralis it is longer; the stigmata are black and the 

 connexivum on its inner margin is marked by a black spot at each 

 incisure; the pronotum is more convex, the sides less deeply sinua- 

 ted, the humeral angles are somewhat less prominent tlian in hainer- 

 alis, and the two black points cm the posterior disk are more con- 

 spicuous. Bergroth has well distinguished this from humeralis, the 

 only species with which it can be confounded. 



Liiotropis conlainiuatuM Uhler (Trans. Ind. Acad. Sci., I, p. 190, 1897). 

 This pretty species may readily be distinguished from the preced- 



