DR. F. LEUTHNER ON THE ODONTOLABINI, 451 
touch when the mandibles are closed. One small tooth at the base of the mandibles. 
Head with the front margin not convex. Labrum frequently projecting downwards 
between the mandibles, but generally with a triangular epistoma above them (fig. 2). 
3. Forma priodonta.—Mandibles about as long as the head, flattened, straight, and 
slightly incurved at the tip (the right mandible generally rather more strongly developed 
than the left), with six or seven small unequal teeth. Labrum resembling an epistoma 
(fig. 3). 
Female. Deep black, except the outer margin of the elytra. Head nearly twice as 
broad as long; upper surface convex, strongly punctured; canthus very broad: man- 
dibles short, with three or four small teeth on the inside; upper and under surface 
strongly punctured; mentum flattened, coarsely punctured; prothorax with two lateral 
spines; upper surface flattened or only slightly convex, dull, finely punctured, the sides 
more strongly S-shaped in front than in 0. cuvera; both spines pointed; elytra twice 
as long as broad, black and shining, finely punctured, with a reddish-brown border 
about 2 millim. in breadth; on the upper side it is seldom so broad as to occupy nearly 
half the elytra; rim of the elytra beneath always reddish brown; front tibize with three 
longitudinal ridges and rows of punctures; outer side with four or five spines above 
the terminal fork. 
The males vary in size from 34 to 79 millim., and the females from 34 to 48 millim. 
Number of specimens examined: about seventy-eight males and twenty-eight females, 
in different collections. 
Habitat. China (Shanghai, Lilong, Hongkong). 
Measurements. 
Total length, Head. Mandibles. Prothorax. Elytra, 
millim. millim, millim. millim. millim. 
79 16 by 22 26 11 by 24 30 by 24 
Telodont .... {78 15 ,, 22 26 11 ,, 235 30 ,, 24 
73 14 ,, 21°5 24 1 ,,. 23:5 28) at 
66 14 ,, 22 18 II 2) 29 ,, 24 
Mesedontcseae tei 14 ,, 21 16 11 ,, 22 26 ,, 22 
-57 2 ea) 135 10 ,, 21 27 ,, 22 
Priodont .... 1 9 7 15 10 @) 5, ils) 24 ,, 20 
34 9 ,, 14 8 OG 22) 5, 18 
48 83. 15 7 1 20) 26, 21 
oe Giese LO 5 8 ,, 15 BD) a % 
The alteration of the name of the species, which has hitherto been regarded as 
O. gazella, Fabr., was unavoidable when I found, on examining Fabricius’s type of his 
Lucanus gazella (compare Pl. XCI. fig. 6) in the Banksian collection of the British 
Museum‘, that this female example from Siam was totally distinct from Westwood’s 
1 This collection was formerly in the possession of the Linnean Society . 
3U2 
