British Species of Genus Acanthosoma. Ill 



Acanlliosoma hcemorrho'idale, Curtis, B.E.I. 28 (1824); H. 



Schaff. Nom. Ent. 57 and 94 (1835); Burm. Handb. ii. 360, 



3 (1835); Am. et Serv. Hem. 154, 1 (1843); Kolen. Mel. 



Ent. iv. 58, 186 (1846). 



Clinocoris hcemorrhoidalis, Hahn, Wanz. ii. 71, tab. 52, fig. 158 



(1834). 

 Acanthosoma, Amyot, Ann. Soc. Ent. Fr. 2me. ser. iii. 456, 72 



(1845). 

 Geoff. Ins. i. 465, 63. 

 Stoll. Pun. 31, pi. 6, fig. 44. 



Above pale olive or brownish green, rather strongly punctured 

 with black. Thorax with the posterior angles spinous, black and 

 tinted with red. Membrane transparent, spotless. Body beneath 

 and legs greenish, yellowish or orange red ; anus red. Antennae 

 pale green or reddish brown, with the apex brown. 

 Length 7 \ lines. 



This species is the largest in the genus. In the male the pos- 

 terior margin of the anal plate is not denticulated. In the female 

 the basal plates are smaller than the apical, and form a somewhat 

 irregular circle with the intermediate plates ; the intermediate 

 plates are much smaller than the basal. 



Sp. 2. Acanthosoma dentatum. 

 Cimex dentatus, De G. Mem. iii. 260, 7 (1773). 

 Cimex hcemagaster, Schrank, Enum. Ins. Aust. 270, 520 (1781). 

 Cimex collaris, Fab. S. R. 170, 83 (1803). 

 Pentatoma Stollii, Le P. et Serv. Enc. x. 53, 2 (1825). 

 Cimex lituratus, var. fi. Fall. Hem. Suec. 24, 4 (1829). 

 Acanthosoma hcemagaster, H. Schaff. Nom. Ent. 57 and 94 



(1835). 

 Acanthosoma hcematogaster, Burm. Handb. ii. 360, 4 (1835); 

 Kolen. Mel. Ent. iv. 59, 187 (1846); Sahib. Geoc. Fenn. 32, 

 1 (1848). 

 Hcematogaster, Amyot, Ann. Soc. Ent. Fr. 2me. ser. iii. 456, 



73 (1845). 

 Stoll. Pun. 129, pi. 33, fig. 229. 



Above pale olive green, rather finely punctured with black, 

 with the inner and apical margins of the coriaceous portion of the 

 elytra, the posterior margin of the thorax, and the base of the scu- 

 tellum, more or less tinted with red. The lateral angles of the 

 thorax are prominent, and there is a smooth, transverse band, 

 generally of a yellow colour, close to the anterior margin of the 

 thorax. Membrane transparent, with a large brown spot on the 



