INSECTA, 447 
Sub-genus: Pyrrhochoris Faut., Burm. Ocelli none. 
Sp. Lygeus apterus Fasr., Cimex apterus L., WouFr, Wanzen, Tab. vi. fig. 
102; Sroun, Wantzen, Pl. 15, fig. 103; 43’ long, black with a red margin 
round the thorax, red shield-covers with a black point at the base, and a 
larger round spot of the same colour in the middle ; the membranous portion 
of the shield-covers is very short; wings commonly wanting. 
Sub-genera furnished with eyes: Lygwus, Xylocoris Lion Durour 
and others, on which comp. Burmeister, I. 1. pp. 288—299. 
Coreus Fase. Ocelli two. Body ovate or oblong. Antenne 
straight. 
Sub-genera: Alydus Fasr., Corizus Faun. and others, for which 
see Burmeister, l. 1. pp. 301, &e. 
Sp. Coreus quadratus Fasr., Wourr, Wanzen, Tab. vit. fig. 67; Hmrricu 
ScHHFFER Deutschl. Ins. Heft 118, Tab. 12, &e. 
Leptocorisa Lat. (Gerris in part; add Berytus Fasr., Neddes 
Fapr.) Ocelli two. Body elongate, linear. Antenne in some 
straight, in others broken. 
Sp. Berytus tipularius Fasr., Cimex tipularius L., DuméRIL, Cons. gén. s, 
1. Ins. Pl. 36, fig. 7; Wourr, Wanzen, Tab. xx. fig. 198. 
B. Scutellum large, produced as far as the middle of abdomen. 
Cimex Fasr. Antenne mostly five-articulate (Pentatoma OLIV., 
Latr.), in some four-articulate (Tesserotoma LEPELET., SERV.) 
Note.—The generic name Cimex I judged formerly, with LATREILLE, to 
be attributable to Cimex lectularius, according to the rule of Linnaus (Phil. 
Botan. § 246), which says that if a received genus is to be sub-divided, the 
previously common name ought to remain with the species most commonly 
known (species vulgatissima); but it seems advisable to give a received 
name to numerous species rather than to a few. Besides, a new name 
would be required, for that given by OLIVIER, Pentatoma, is inapplicable to 
several species of this genus, and the distinction taken from the number of 
joints of the antennz is artificial, often severing affinities. For many 
genera of modern writers, not here recorded, see BURMEISTER, l. 1. p. 347, 
&c., and Amyor et SERVILLE, Hémipt. pp. 72—182. 
Genera of Fapricius, Cydnus, Halys, Edessa, lia, Cimex. 
Sp. Cimex baccarum L., Panzer, Deutschl. Ins. Heft 33, Tab. 18; WoLFF, 
Wanzen, Tab. vi. fig. 57; 43” long, the head and thorax red-brown with a 
shade of green, and many impressed minute black points; the scutellum 
yellow at the point, the abdomen black above with yellow spots at the 
