450 DE. F. LEUTHNER ON THE ODONTOLABINI. 



Measurements. 



Total length. Head. llandiblo. Prothorax. Elytra, 



millira. millim. millim. millim. millim. 



r Lansberge (telodont) 7U 13-0 by 24 23 10-0 by 23 29 by 23 



, j „ (mesodont) 7U 13-0 „ 2-i-o 23 10-0 „ 24-5 30 „ 23-5 



I Mniszech (type of var. bidaitata) . 68 12-5 „ 2-4 19 lO'O „ 24 29 „ 23 



1^ Lansberge (priodont) 49 11-0 „ 19 10 9-5 „ 19 26 „ 21 



S 40 7-0 „ 12 5-5 y-0 „ 18 23 „ 19 



Deyrolle described a single male example from Celebes, but the real locality of this 

 species is now known to be not Celebes (Menado) but the neighbouring island of 

 Sangir. In addition to the fifteen specimens contained in the collections of Messrs. 

 Parry and van Lansberge, I have examined scries of this species in the museums of 

 Leyden and Paris. 



Section III. 



11. Odontolabis SINENSIS, "Westw. (Plate XCI. figs. 1-3, cJ ; 4,$.) 



Lucanus yazella, var. sinensis, West. Cab. Or. Eut. p. 51, pi. xxvi. figs. 2, 3, J , fig. 4, $ (good 



figure). 

 Odontohibis gazella, p., Tliomson, Auu. See. Ent. France (4) ii. p. 395. (China.) 

 Odontolabis gazella, p., Parry, Traus. Ent. Soc. Lond. (3) ii. p. 75 ; Cat. Luc. Col. ed. 3, p. 13. 



Male. Deep black, only the outer margin of the elytra reddish brown ; mandibles, 

 head, and prothorax dull, finely punctured. Head quadrangular, canthus narrow, 

 behind the eyes is an obtuse horizontal spine ; lower part of the cheeks pitted ; sides 

 of the prothorax with only one concavity, bispinose, the spines produced into a fine 

 point ; rim of the prothorax smooth beneath ; prosternal process pointed, variable ; 

 elytra shining, black, with a reddish-brown border both on the upper and under sur- 

 faces ; on the upper surface this border is generally no broader than beneath, but it 

 happens sometimes, though very rarely, that it is broad enough to cover half the 

 elytra ; front tibiae with from three to five teeth above the terminal fork. 



Mandibles. 



1. Forma tclodonta. — Mandibles as long as the head and thorax together, gently 

 curved, flattened, the tip deeply forked, the front brancli generally with three and the 

 hinder with two teeth. About two tliirds of the length from the tip stands a tooth 

 slightly projecting forwards. Base of the mandibles unarmed. Head with the frontal 

 margin strongly convex. Labrum depressed between the mandibles (fig. 1). 



2. Forma mesodonta. — Mandibles as long as or rather longer than the head, flattened, 

 and rather compressed, with four or five unequal teeth at the tip. In the middle is a 

 strong rounded tooth projecting downwards, and those on the opposite sides nearly 



