•M
F '
ii,,
llii
PLATE XXVI.
( O R D E R — C O L E O P T B R A . DIVISION—PENTAMEEA. EAMILT—LUCANIDIE. LEACII.)
MUCH confusion having been introduced into tlie nomenclature of those oriental species of Stagbeetles
which have the luteous or fulvous elytra, more or less suffused with black ; I have thought it
might be serviceable to make them the subject of a se^jarate article. The sub-genus Odontolabis, Hope,
comprises those species of Lucanus which have the eyes entirely divided by the canthus, the fore tibise
in the males externally armed with small spines ; the intermediate and posterior tibioe in both sexes
externally unarmed, the body not metallic-coloured, and the club of the antennoe 3-partite. All the
insects represented in the accompanying plate enter into the group thus characterised.
R m
i '
iiH
P r
hita
• ¥
'tf i
L'liil
111
)
'•} H
F I G U R E 1.
LUCANUS (ODONTOLABIS) BICOLOR, OLIYIEE. (ENTOM. 1, pL S, F. 20.)
Lucanus niger, elyti-is pallide testaceis sutura tenui nigra ; mandibulis latis capite parum brevioribus arcuatis
deuticulatis ; ociiloiiim septo magno rotundato, capite utrinque pone oculos spina parva armato, fvonte autice liaud
elevato, prothoracis lateribus acute augulatis, angiUis postioig emarginatis, tibiis antiois cm-vatis supra sulcatis, extus
spinis duabus minutis araiatis.
Lucanus Uack, m t h the elyti-a pale testaceous, the scutellum and sutiu-e slenderly black ; the mandibles broad,
rather shorter than the head, curved and denticulated ; the septum of the eyes laa-ge and rounded ; the head, behind
the eyes, is armed on each side with a small spine, the front of the head is not elevated, the prothorax has the sides
acutely angulated, the posterior angles ai-e emarginated, and the fore tibias curved, deeply sulcated, and externally
armed mt h two very minute spines in addition to the bifid apex. (Male.)
Length of the insect without the mandibles nearly 2 inches.
O B S E R V A T I O N S . — M y figure of this species is copied from a specimen in the British Museum, from
Nepaul, presented by Bryan Hodgson, Esq., which precisely corresponds with Olivier's figure and
with a third specimen in the Banksian Cabinet at the Linnsean Society. The female is unknown. In
addition to the characters given above, it may be noticed that the mandibles are very rugose on the
tmderside, especiaUy at the sides; the head is rugose behind the eyes on the upperside j the middle
tibife have a small dilatation on the inside at the tip ; the mentum is broader, and the space intervening
between the coxa; of the fore legs is considerably broader than in the male of the following species.
M. Guerin Mene'^dlle notes that M. Delessert brought a specimen completely agreeing with Olivier's
figm'c from the coast of Malay.
F I G U R E S 2, 3, 4, 5.
LUCANUS (ODONTOLABIS) GAZELLA, FABRICIUS. (MANT. INS. 1, p. 1.)
O B S E R V A T I O N S . — T h e typical specimen of this species, described by Fabricius and figured by
OUvier, Ent. 1, pi. 4, fig. 13, from the Banksian Cabinet, is now in the possession of the Linnajan
Society, and is a native of Siam. This specimen is a female, and differs only from the insect
represented in the accompanying plate (fig. and from M. Guerin^s figure of his Lucanus Delessertii
(Souv.Voy. Deless. Ins. pi. 12, f. 3), in having the black coloui- precisely occupying half of each eljrtron;
m
he i
n i l
iifï.