98 On a new Species q/'Calosoma. 



XIIT. — Description of a new Species of Calosoraa ( CoJeoptera, 

 Geodephaga). Bj Chas. O. Waterhouse, F.E.S. 



Having had occasion to examine the genus Galosoma from a 

 geographical point of view, 1 was surprise! not to fiiil the 

 following Australian species described. It is of interest 

 as approaching in its general appearance the species from 

 Kew Caledonia — Galosoma oceanicum. I propose to call it 

 G. Walkeri. 



Galosoma Walkeri, sp. n. 



Statura C.sycophantrc, minus coiivexum, thorace angustiori. jSTigrum, 

 nitidnm ; thoracis marginibus viridi tinctis ; elytris brumieo- 

 cupreis, punctato-striatis, iuterstitiis parum convexis, sublosvibus, 

 marginibus anguste viridibus ; corpore subtus viridi-tincto ; 

 pedibus obscure piceis. 5 . 



Long. 13, lat. 6| lin. 



Hah. W. Australia, Swan River [Macgillivraif) ; Roebuck 

 Bay {J. J. Walker). 



In general form this species resembles G. sycophanta, but 

 the thorax is relatively rather narrower and the elytra are 

 much flatter. The head is smoother, with a little green near 

 the eyes. The thorax has the same form, but perhaps the 

 sides are a little less sinuate posteriorly ; the surface is 

 smoother, the disk black, the rest of the surface tinted with 

 copper, the extreme margins green. The elytra are brownisli 

 coppery, with a little green near the scutellum and on the 

 margins ; they are punctate-striate, but the strise are only 

 lightly impressed, and consequently tlie interstices are only 

 gently convex. The usual punctures on the fourth, eighth, 

 and twelfth interstices are very small and are only visible 

 in some lights near the apex. The underside of the body is 

 pitchy, with bright green reflections. 



As the species of this genus are extremely difficult to deter- 

 mine, it may be useful to note that the type specimens of the 

 following species are in our Natural History Museum : — 



Calosoma amiMator, Bates. Cent. Amer. 



Iceve, ¥ar. jjuiictidicolle, Bates. Cent. Amer. 



, var. explanaticolle, Bates. Cent. Amer. 



, var. viicrogonum, Bates. Cent. Amer. 



omilteviium, Bates. Cent. Amer. 



diminutwn, Bates. Cent. Amer. 



morelianum, Bates. Cent. Amer. 



2mrosifrons,^a,te&. Cent. Amer. 



galapageium, Hope. Galapagos Is. 



