﻿of Lucanoid Coleoptera. ] 9 



specimens are longer than the Iiead, flattened, curved at the base, 

 and strongly incurved at the apex, the middle part being nearly 

 straight, with a small conical point at a short distance from the 

 apex on the inner edge. The antenna are small, with a three- 

 jointed clava; the maxillae have the outer lobe of moderate length, 

 and strongly ciliated; the palpi have the terminal joint somewhat 

 sabre-shaped; the mentum is very short and broad, with the 

 anterior angles rounded off. The prothorax has the sides straight 

 and nearly parallel, the anterior angles acute, and the hind ones 

 rounded off without any spine or lateral conical point. The elytra 

 are short and ovate, without any longitudinal striae. The fore 

 tibiae are rather long, with two teeth on the outer edge, exclusive 

 of the two strong ones at the apex. The four posterior tibias are 

 destitute of a spine in the middle. The prosternum terminates 

 in a slightly dilated and convex ridge between the base of the 

 fore legs. The tarsi are very short. The mesosternum is slightly 

 channelled along the middle. 



The small variety of the male has the head smaller than the 

 prothorax, and the latter comparatively smaller than in the larger 

 individuals, with its sides rather more rounded ; the front margin 

 of the head is somewhat emarginate, and the sides behind the eyes 

 are marked with large punctures ; the mandibles are shorter than 

 the head, strongly curved, with a large conical tooth near the base 

 on the inner edge, and the apex obtusely bifid ; the mesosternum 

 has also a rather deeply impressed, narrow, punctate channel. 



The female has a much smaller head, the canthus forming an 

 angle at the sides in front of the eyes ; the front of the head is 

 slightly emarginate, and the clypeus produced into a small quadrate 

 setose lobe ; the sides of the head are very strongly punctured. 

 The prothorax has the sides also punctured, and the lateral 

 margin is more rounded than in the male, especially at the pos- 

 terior lateral angles. The elytra have the sides and extremity 

 punctured. The palpi are rather shorter and stronger than in the 

 male, but the tibiae of all the legs are spined, as in the other sex. 



Plate XI. Fig. 1. The large male somewhat magnified, la, outline of portion 

 of the head ; lb, front of the head seen from the front ; 

 If, maxilla ; Irf, mentum ; le, mentum seen from within, 

 wilh the labium and palpus ; \f, antenna ; lo-, pro- 

 sternum seen from beneath ; \h, ditto, seen sideways. 



Fig. 2. The small-sized male. 2a, outline of the side of the head ; 

 2 b, mandible. 



Fig. 3. The female. 3a, the head; 3ft, the eye, divided by the canthus; 

 3c, antenna; 3d, maxilla; 3e, mentum ; 3/', labium and 

 palpus.— J. O. V/.] 

 C 2 



