420) DR. F, LEUTHNER ON THE ODONTOLABINI, 
This subdivision includes the three genera :— 
3 2 
A c ae 
Front tibia. Head. Mandibles. 
I. Neolucanus. . normal. normal, serrated, often se 
: normal. 
at the tip. 
II. Odontolabis considerably with a spine tif, aa 
Ill. Hedi longer. behind the eyes. } aa aa a a a 
(1) Neoxvcanvs, Thoms. 
(véos, new; Lucanus). 
Neolucanus, Thoms. Ann. Soc. Ent. France (4) ii. p. 415 (1862). 
Odontolabis, Hope (partim), Cat. Lucan. Col. pp. 5, 31. 
Anoplocnemus, p., Burm. Handbuch d, Ent. vy. p. 357. 
Anodontolabis, Parry, Trans. Ent. Soc. Lond. (8) i. p. 447 (1863). 
Male. Front of the body (inclusive of the mandibles) scarcely longer than the 
hinder portion. Head broad, flattened, front margin strongly emarginate. Canthus 
extending entirely round the eyes. No protuberances on the sides of the head behind 
the eyes. Mandibles not much longer than the head, serrated on the inside, often 
vertically forked at the tip, and generally somewhat curved upwards. Prothorax as 
broad as or broader than the elytra, front edge strongly emarginate on each side, the 
sides straight, or only slightly curved, the hinder angles pointed. Prosternal process 
rounded off, not projecting behind, and generally channelled. Legs of uniform length, 
front tibiz short, dentate on the outside, middle and hind tibize unarmed. 
Female. Wardly different from that of Odontolabis; mentum generally furnished 
with a strong crescent-shaped ridge. 
Hope divided his genus Odontolabis into two sections, according to the presence or 
absence of protuberances behind the eyes; but he proposed no generic name for his 
second division. Thomson soon supplied the omission by proposing the very inex- 
pressive name Neolucanus, which the law of priority compels me to retain, although 
Parry’s name is much more correctly formed, besides expressing the intimate relationship 
of this genus with Odontolabis (comp. diagram of the species, p. 407). 
Section I. 
1. NEOLUCANUS LATICOLLIS, Thunb. (Plate LXXXIV. figs. 1, 2,4; fig. 3, 9 .) 
Lucanus laticollis, Thunb. Mem. Soc. Nat. Mose. i. p. 163. From Java. 
Neolucanus laticollis, Thoms. Ann. Soc. Ent. France (4) ii. p. 395. 
Lucanus glabratus, Hope (De Haan, MS.). Cat. Lucan. Col. p. 18. (Assam ?) 
Male. Pitchy black, shining; head quadrangular, flattened, with a strong semi- 
circular concavity in front, and the sides nearly straight; canthus oblique; mentum 
sparingly clothed with reddish-brown hair; lower part of the cheeks shining, with 
