216 Mr. Stephens's Description of Chiasognathus Grantii. 



green, tinted with coppery above; tibia above coppery-green, 

 with a tendency to castaneous, beneath rusty-chesnut, tinged in 

 certain directions of light with greenish ; the serrations, tubercular 

 processes, and spines at the apex purplish-black; tarsi brown- 

 black; antenna the same; with the singular fascicle of hair at 

 the apex of the basal joint pale griseous. At the base of the 

 mandibles exteriorly, and on the sides of the thorax are a few 

 very short pale scattered hairs, and on the ridge which divides 

 the eyes is a long delicate fringe of similarly coloured ones; 

 the anterior and posterior margins of the thorax both above and 

 below are also densely ciliated with short pale hairs. 



The female is unknown, but in all probability, when disco- 

 vered, the mandibles will be found to be abbreviated, and the 

 form of the clypeus and thorax slightly different from those of 

 the male. 



I am, Your's, &c. 



J. F. STEPHENS. 



P. S. Dr. Grant, the gentleman who presented this interesting spe- 

 cimen to the Society, was surgeon on board H.M.S. Forte, when she 

 returned to England in the summer of 1830, from the South American 

 station. The Insect was brought to him in January by a native, who 

 stated that he had found it on a resinous shrubby plant in the Island 

 of Chiloe, which is separated from the Main Land at Valparaiso by a 

 very narrow channel.— It appeared to have been a recent capture. 



