DR. F. LEUTHNER ON THE ODONTOLABINI. 421 
scattered punctures; prothorax, front edge strongly indented on each side, sides 
and hinder margin nearly straight; prosternal process rounded; elytra strongly convex, 
arched, of a long oval shape; front tibie rather broad, with four spines above the 
terminal fork ; mandibles shorter than the head, each with four or five small irregular 
teeth on the inner side. 
Female. Pitchy black, shining; elytra much longer than the front part of the body; 
head broad, moderately convex, front coarsely punctured ; canthus as broad as the eyes ; 
mentum strongly and coarsely punctured; prothorax flattened, shaped as in the male; 
prosternal process canaliculated ; front tibie broad, with three or four spines above the 
terminal fork; middle and hind tibie with a small hook-shaped projection on the 
inside at the tip. 
Locality. Java. 
Number of specimens examined eighty. 
Measurements. 
Total length. Head. Mandibles,  Prothorax, Elytra. 
millim. millim. millim. millim. millim, 
Guschstye 38 7:0 by 12:0 7 9 by 17:0 20 by 15°5 
O Marries 29 45 ,, 85 4 i enl3:5 18 ,, 13:0 
This species occurs only in Java, and not, as Hope believed, in Assam. The males 
vary but little in size. Their mandibles are always simple and priodont. 
2. (2) NEOLUCANUS LANSBERGII, sp.n. (Plate LXXXIV. fig. 4.) 
Male. Unknown. 
Female. Most resembling that of WV. laticollis, from Java, in shape and size. Head 
broad, quadrangular, moderately convex, coarsely shagreened in front, finely behind ; 
canthus rounded off, nearly as broad as the eye; mentum coarsely punctured, without 
hair; gula with an enamel-like lustre ; prothorax broader than in N. laticollis, the 
sides rather more oblique, strongly convex, and very finely punctured ; under-surface 
with an enamel-like lustre; prosternal process but slightly developed; elytra long, 
oval, rounded off both at the shoulders and at the tip, strongly convex; uniform jet- 
black, with a dark reddish-brown spot on each elytron, commencing about 4 millimetres 
behind the shoulders and ending near the tip; it is pointed in front and rounded 
behind ; the outer side is parallel with the black borders of the elytra; the inner side 
is straight, and runs diagonally from the shoulder to the tip; rim of the elytra black 
beneath ; front tibie straight ; terminal fork well developed, and two or three straight 
and well-developed spines on the outside. 
Habitat. Kastern Sumatra. 
Unique, in the collection of Herr van Lansberge, after whom I have much pleasure 
in naming it. 
