DR. F. LEUTHNER ON THE ODONTOLABINI. 423 
Measurements. 
Total length. Head. Mandibles. Prothorax. Elytra. 
millim, millim. millim, millim. millim. 
OP eee 26 3 by 7 35 6 by 11 14 by 11 
Major Parry confused two species under the name of NV. cingulatus. One occurs in 
Malacca and the other in Siam (Laos). ‘The former agrees perfectly well with his 
fig. 3, and the latter with part of his description :—‘“ Nigro-castaneus, nitidus, sub- 
parallelus, elytris singulis vitta obliqua flava ab humero ad apicem notatis.” 
The original, from which the above-mentioned figure was taken, was admirably 
painted by Migneaux, rather above the natural size, and came into possession of Major 
Parry through the agency of the late Count Mniszech, who did so much for the study 
of the Lucanide. It agrees perfectly with the type from the collection of Count de 
Castelnau, which was kindly lent me for examination by its present owner, Herr van 
Lansberge, and thus enabled me to clear up all doubts relating to this species, and to 
make a careful description of it. Unfortunately the specimen remains unique, and the 
male is still unknown; but it appears to be most nearly allied to Gestro’s Neolucanus 
muntjac, from Borneo. 
The other species from Siam, which I propose to call V. parryi, is allied to WV. casta- 
nopterus, Hope, and NV. swinhoti, Parry. 
Section IT. 
5. NEOLUCANUS CASTANOPTERUS, Hope. (Plate LXXXIV. fig. 13, ¢ (a, mentum) ; 
fig. 14, 2 (6, mentum).) 
Lucanus castanopterus, Hope, Gray, Zool. Misc. (1831) p. 22; Hope, Cat. Luc. Col. p. 18; 
Westwood, Cab. Or. Ent. pp. 22 and 54, pl. x. fig. 5 (cd), and pl. xxvi. fig. 6 (?); Parry, 
Trans. Ent. Soc. Lond. (3) i. p. 78. 
Anoplocnemus bicolor, p., Burm. Handb. d. Ent. v. p. 360. 
Male. Uniform black, except the reddish-brown elytra; head and prothorax dull, 
with extremely fine punctures; underside and elytra shining; head broad, quadran- 
gular, front edge emarginate ; canthus narrow, the sides of the head convex behind in 
large specimens; mentum thickly clothed with brown hair; mandibles straight, trian- 
gular, scarcely as long as the head, the tips curved inwards, with five or six irregular 
teeth on the inside; upper side shining; prothorax but little convex; front edge and 
sides rounded, hind margin nearly straight; elytra long and very convex, the tips 
rounded ; reddish brown, with only the base and scutellum black; the lower reflexed 
rim black; front tibia broad in front, with from three to five spines above the ter- 
minal fork. 
Female. Colour similar to that of the male; head quadrangular, canthus narrow, 
straight; mentum with a slightly developed crescent-shaped crest; prothorax broad ; 
