DE. P. LEUTHNEB ON THE ODONTOLABINI. 



457 



This South-Indian species was described by Hope, in 1841, from a single male 

 example, and was long regarded by Westwood, Burmeister, and Parry as a mere variety 

 of 0. cuvera. Subsequently Major Parry and Mr. C. O. Waterhouse obtained speci- 

 mens of both sexes from Travancore, and were thus enabled to recognize it as a distinct 

 species. Through the kindness of Messrs. Janson and Moore, and especially of Mr. 

 Kirby, who put me into communication with the Kev. S. J. Pettigrew, who lived for 

 some time in Travancore, I was enabled to examine eleven male and five female 

 examples. 



Section IV. 



16. Odontolabis wollastoni, Parry. (Plate XCIII. figs. 5, 6, 7, 9, cJ; fig. 8, ? .) 



<J ? . Odontolabis wollastoni, Parry, Trans. Ent. Sec. Lond. (3) ii. p. 14, pi. iii. fig. 1 {$ telodont) ; 

 pi. ii. fig. 2 ((J amphiodont), fig. 3, ? . 



Male. Uniform black, except the bicolorous elytra. Head often as broad as the 

 prothorax, the sides with coarse shagreened punctuation ; canthus broad, divided by an 

 indentation into two folds in front of the eyes, the spine behind the eyes set very far 

 back, and often rounded off; prothorax with the front edge deeply emarginate on 

 each side, sides S-shaped as far as the middle spine, and then strongly emarginate ; 

 prostemal process conspicuous, projecting vertically downwards; elytra orange-yellow, 

 with a triangular black mark, rapidly narrowing before the tip ; rim of the elytra black 

 beneath ; front tibiae long and straight, with one or two veiy slender spines above the 

 terminal fork. 



Mandibles. 



1. Forma telodonta. — Mandibles longer than the head, rounded, strongly curved, and 

 bifurcated at the tip, with three or four small teeth on the front branch ; a rudiment of 

 an obtuse tooth on the upper side at the base. Front margin of the head very convex 

 (fig. 5). 



2. Forma mesodonta. — («) Mandibles not forked at the tip, with three or four teeth ; 

 beyond the middle is a very prominent tooth, pointing downwards, above which are four 

 or five small teeth. A strong obtuse basal tooth {y&r. pectinata, fig. 6). {b) Mandibles 



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