46 PAUSUS. 



able to find any more specimens, I was prevented 

 from ascertaining the fact by reiterated experi- 

 ments at different times ; which I therefore must 

 recommend to other naturalists who may have an 

 opportunity of visiting Sierra Leona, requesting 

 that they would particularly inquire into this 

 curious circumstance. I shall now only add some 

 few remarks, shewing in what manner this new 

 species differs from the old one. Not being quite 

 so broad, it looks as if it were longer, and more 

 cylindrical : it is also of a lighter or chesnut colour, 

 and all over very glossy. The head is larger, but 

 its annular base part smaller, and contracted: it 

 is furnished with a little horn in the middle, be- 

 tween the eyes, which is strait, conic, and tipped 

 with a tuft of cartilaginous hairs: the clypeus is 

 only depressed, and the jugular triangle wider: 

 the eyes are large, and very evident, those of the 

 male black, though in a certain light appearing 

 greenish; but those of the female are like pearls, 

 or as if they were covered with a crystalline mem- 

 brane: the angles of the brim of the socket are 

 small and rounded at the top, and the hinder one 

 lower than the eye. The pivots of the antennae 

 are not so discernible as in the former species, 

 being like the surrounding parts in colour: the 

 under joint is without any hairy papilla or wart: 

 the upper joint or clava is of the size of the head, 

 quite globular, and resembles an inflated bladder, 

 being almost pellucid, and of a light flesh-colour: 

 the keel is nothing more than a raised line, finish- 

 ing on the vertex in only one chesnut-brown 



