46 



FAMILY II. CAKABID/5;. 



I^'. Cai.umjma AVoIjit. 181)1. (<;i-.. " beautiful + body.") 

 Larue sinM-ies. green, blauk m- bronze in <:ol<jr, having the tootli 

 of mentum simple and third .ioint of antennsE strongly compressed. 

 Some of them are very common beneath logs and stones in open 

 woods and about the borders of cultivated fields, and are often at- 

 tracted in numbers by electric lights. They are among the most 

 beneficial of the Carabida'. feeding almost wholly upon caterpillars, 

 cutworms and other injurious larvie. About 25 spacies are known 

 from the United States, five of which have been taken in Indiana, 

 while another doubtless o cms. The following papers are the prin- 

 cipal ones treating of the genus : 



LeConU. — "Notes on the Species of Calosoma Inhabiting the 

 United States" in Proc. Phil. Acad. Xat. Sei.. 1862. 52. 



LeConte. — "Synoptic Table" in Bull. Brook. Ent. Soc. 1, 1878, 

 64. 



KEY TO INDIAN.V SPECIES OF C.VLOSOMA. 



a. Elytra without rows of metallic spots. 



b. Elytra lilaek with blue border; ieugth :iii miu. 30. extern; ii. 



hb. Elytra metallic green with red margin. 



c. Length more than 25 mm. 31. scrutatok 



cc. Length less than HO mm. 32. willcoxi. 



(1(1. Elytra black, each with three rows of golden or metallic green im- 

 pressed spots. 

 d. spots of elytra green. 



e. Length -O mm. : front tarsi of males with four joints hairy be- 

 neath. 33. FBIGIDVM. 

 ce. Length 25 or more mm. : front tarsi of male with two joints hairy 

 beneath. Sati. 

 (1(1. Spots of elytra golden, very rarely green ; front tarsi of male wit;-, 

 three joint* hairy beneath. 34. caodxm. 



Journ. rhil. 

 3. :.".ii: ibid. 



Fig. 33. I After Leng.) 



30 (1241. Caiji^oma EXTEBNiit Sa.^i-. 



.Vend. Xat. Sci.. Ill, Isi 



11. 96. 

 EloiiL'are, robust. I'.lick, siilinpnciue; side margins 

 of thorax and elytra blue. Thorax with sides rounded, 

 btoadly flattened and reflexed behind; hind angles 

 obtusely r::unded. Elytra almeist parallel to apical 

 fourth, the stride with di^tinet punt;-tui-es. Leiit:th 

 ::0 mm. ( Fig. 33. ) 



Throughout the Sjate but nowhere common. 

 'Slur l:^-t^ ti.her 18. O curs singly or in 

 lietteath ccivcr in iiiien woods. 



pair-i 



