of Lucanoid Coleoptera. 23 
Crapoenatuus Warxacerr 4, Parry (var. max., 2 ignota). 
(PI. VI, fig. 2.) 
C. niger; elytris dorso fusco-castaneo, lateribus nigro-margi- 
natis, vitta flava latiuscula notatis; labro producto, trigono- 
conico; mandibulis porrectis, haud arcuatis, irregulariter 
denticulatis, et intra basin versus fortiter emarginatis ; 
tibiis anticis extus irregulariter denticulatis, quatuor pos- 
ticis inermibus. 
Long. corp. fere unc. 2; mandib. lin, 8. 
Hab. Ins. Gilolo. Coll. Wallace. 
Mandibles nearly straight, slightly curved from the base to the 
apex, which is bifurcate, the general surface flattened ; internally 
at the base deeply emarginate, with one strong tooth just before 
the middle, and two smaller ones behind and before it, 
Head with a large oblique flattened space on the crown, emar- 
ginate in front, anterior angles obliquely truncate, sides slightly 
swollen behind the eyes; labrum short, subtriangular, general 
surface shining, but very delicately shagreened, covered beneath 
with ferruginous hairs. Prothorax considerably wider than the 
head, smooth, anterior angles somewhat produced, and truncate ; 
anterior and posterior margins bisinuate, sides slightly waved, 
posterior angles obliquely truncate. Elytra widest just below 
the humeral angle, deep chestnut brown, narrowly margined with 
black, with a widish yellow vitta extending from the shoulder 
nearly to the apex, the vitta narrowest at the humeral angle. 
Legs black, anterior tibiz armed externally with two teeth and 
a few slight crenulations, intermediate and posterior tibiae unarmed ; 
femora and trochanters of intermediate and hind legs furnished 
behind with a narrow line of brownish hairs. 
This unique and fine species is named after A. R. Wallace, Esq., 
to whose indefatigable exertions natural history in general is so 
much indebted. Although somewhat approaching in general 
appearance the gigantic species of the genus Odontolabis, it bears 
nevertheless, I think, a nearer affinity to the species of that section 
of the genus Cladognathus which Mr, Hope in his Catalogue 
designated as Prosopocoilus, and of which Cladognathus Lafertet 
may be considered the representative. 
Crapocnatuus Larerter 2. (PI. VIII. fig. 5.) 
C. Laferteit $, Reiche, Revue Zool. 1852. 
Feem.—C. fuscus; capite rugoso-punctato, postice lavigato ; 
mandibulis brevibus, rugosis, unidentatis; elytris pallide ferru- 
