DR. F. LEUTHXER OX THE ODOXTOLABINI. ioS 



Xumber of specimens examined : sixty-one males and fifteen females, in different 

 collections. The males vary in size from 46 to 77 millim., and the females from 33 to 

 89 millim. 



Habitat. North India (Silhet, Assam). 



This species is closely allied to the last, from which it only differs in the colour of 

 the elytra. It was first described by Hope as 0. cuvera, in 1845 ; three years after- 

 wards he described the mesodont form as 0. prinseppii, and changed the name of 

 0. licolor, Saund., to 0. saundersi. Hope's 0. delesserti is quite distinct from Guerin's 

 species ; and I have convinced myself, by an examination of the types in Oxford, that 

 they are only a small male and female of the present species from Assam. 



13. Odontolabis mouhoti, Parry. (Plate XCI. fig. 5,c?.) 

 Odontolabis mouhoiii, Parry, Trans. Eut. Soc. Lond. (3) ii. p. 14, pi. i. fig. 1 (figure ine.xact). 



Male. Intermediate between 0. sinensis and 0. cuvera. Uniform black, with the 

 exception of the pale yellowish -brown elytra. Head large, front edge semicircularly 

 emarginate, clypeus depressed, canthus narrow, oblique, the spine behind the eyes 

 placed rather behind the canthus; beyond the spine the head narrows to the neck; 

 mandibles as long as the head, slightly incurved, upper surface flattened, the right and 

 left sides asymmetrical, the right with four or five small irregular apical teeth, followed 

 by a round obtuse middle tooth and an obtuse basal tooth ; on the left side these are 

 less developed ; prothorax rather broader than in 0. sinensis, but similar in form ; 

 elytra broad, upper side pale brownish yellow, except a small straight black stripe on 

 the suture, somewhat broader at its base on the scutellum, and extending to the 

 shoulders ; rim of the elytra yellow beneath ; front tibiae long and narrow, with three 

 spines on the right tibiae and four on the left above the terminal fork. 



Female. Unknown. 



Habitat. Cambodia. 



A single specimen (the type) in Herr van Lansberge's collection (formerly in 

 Count Castelnau'sJ. 



