1S77.] 61 



LiTOSOifA DiAPiiAXA (Cat., 31, 2). Under this name 1 liave re- 

 ceived specimens from Messrs. Saunders and Douglas. But that sent 

 by Mr. Douglas (a male) is not similar to that from Mr. Saunders, 

 the former being clothed above with fine whitish hairs, and with black 

 ones densely intermixed, and having the apical joint of the antennae 

 only (nearly) a third jiart as long as the third joint ; whereas, the 

 true Capsus diaphanus of Kirschbaum (E-h. Wiesb., 145, 15), is clothed 

 with whitish hairs only, and seems also otherwise to be different. 

 Also the specimen sent by Mr. Saunders (a $ ) differs from the speci- 

 mens which Drs. Puton and Frey-Gessner have sent me, especially 

 in the fourth joint of the antennte being " half as long, or nearly 

 half as long, as the third" {vide Saund., Syn., p. 290). Capsus dia- 

 phanus of Kirschbaum has, however, the same joint, not nearly half 

 so long as the third, even as O. prasinus, Saund., nee Fall. Kirsch- 

 baum says, in the description of C. diaplianus (p. 146) : " Grlied 2 beim 

 ^ 4- mal, beim ? iiber 3- mal, 3 etwa 3- mal so lang, 4 etwa langer 

 als 1;" and in the synopsis (p. 78) : " Filhler wenig kiirzer als der 

 Korper, Fiihlerglied 2 nur anderthalbmal so gross, 4 iveniger als halb 

 so gross als 3." These characters accord with the specimens obtained 

 from France (Puton), Switzerland (Frey-Gessner), and also from 

 Spain, but not with the O. diaplianus of Mr. Saunders. 



The allied species could be arranged according to the following 

 scheme. I beg Ilemipterists in Britain to direct their attention to 

 these green species with somewhat transparent elytra and green cell- 

 nerves, and to collect a great many specimens, the distinction of the 

 species being recognised with certainty only after comparison of many 

 examples of both sexes : 



1 (10). Upper-side of the body clothed only with pale hairs. 



2 (7). Upper-side clothed with rather longish, not adpressed, ochreous 



hairs. 



3 (6). Apical joint of antennae about half as long as the third. 



4 (5). First joint of antennae as long as the head, fourth joint 



scarcely longer than the first, and more than half as long as 

 the third, this being about half as long as the second ; vertex 

 posteriorly rather sharply marginate ; genital segment of $ 

 not wider than the othei's. $ ? . (On JJlmus). 



1. viridinervis, Kirschb.,- nee D. & S. 



5 (4). First joint of antennae not so long as the head, fourth joint 



distinctly longer than the first, and half as long as the third, 

 this being (at least in ^ ) about one-third shorter than the 



