432 DE. F. LBCTTHNEE ON THE ODONTOLABINI. 



clypeus raised, strongly punctured, wrinkled, slightly convex, nearly straight ; canthus 

 as broad as or broader than the eye, and strongly and coarsely punctured ; mandibles 

 short, strongly convex on the outer side; upper and under sides flattened, coarsely 

 granulated, with a long tooth at the tip and three small ones in the middle ; mentum 

 long, with a crescent-shaped crest ; prothorax broader in front than in N. lama, the 

 front edge strongly emarginate on each side ; front angles somewhat rounded, the 

 sides slightly curved ; middle projection rounded, behind which the sides are somewhat 

 emarginate ; hind margin nearly straight ; elytra oval, with the shoulders rounded, 

 dark nut-brown, with a distinct black stripe on the suture; front tibiae long and 

 narrow, with six spines above the terminal fork. 



Habitat. North India. 



Two males and two females in the collection of Major Parry aud the British Museum. 



Measurements. 



Total length, 

 millim. 



cJ , type (Parry) 61-5 



<J (Brit. Mu8.) 61 



S , type (Parry) 57 



S (Brit. Mus.) 52 



(2) Odontolabis '. 



(oJout, tooth ; \afUs, forceps.) 



Odontolabis, p., Hope, Cat. Luc. Cal. pp. 5, 13. 

 Anoplocnemus , p., Biirm. Handb. d. Ent. v. p. 357. 

 Calcodes, Westw. Aun. Sci. Nat. ser. 2, i. p. 118. 



Male. Head large, quadrangular, flattened, with an occipital crest, but in large 

 specimens the frontal crest is often prominent; the labrum often projects between the 

 mandibles, above which it frequently forms an epistoma ; mandibles polymorphic, the 

 largest being as long as the head and thorax together, and the smallest only as long as 

 the head ; eyes entirely enclosed by a canthus, behind which is a straight or curved 

 spine ; sides of the prothorax generally with spines, which are frequently rounded at 

 the tips ; prosternal process generally prominent, and the mesosternal process like- 

 wise often well developed ; front tibiae much longer than the four hind tibiae, straight 

 or incurved, and provided with a terminal fork, and with several spines on the outer 

 side ; the four hind tibiae unarmed ; all the tarsi hairy. 



Female. Resembles the female of Neolucanus. Mentum generally flattened; pro- 

 sternal process usually well developed (p. 434). 



Most of the species of Odontolabis are large and flattened insects, with large and 

 variously formed mandibles in the male. The number of the spines on the front tibiae 

 (although not constant) is of considerable importance in the discrimination of species. 



' Although the name Odonioktlis is feminine, I have not thought it necessary to make the specific names 

 agree with it, as the English authors have invariably used masculine names. 



