of Lucanoid Coleoptera. 57 
6 aut 7 armatis, intermediis 4—5, posticisque 2 spinis mini- 
mis instructis. 
Long. corp. lin. 13; mandib. lin. 4. 
Hab. Ins. Gilolo. Coll. Wallace, Saunders, Bare 
Mandibles faleate, broad at the base, within which is a large 
tridentate process, and thence gradually narrowed to the tip. 
Head broad, slightly depressed, deeply emarginate in front; the 
angles of the emargination acute and obliquely prominent, and, 
like the mandibles, delicately shagreened, with indistinct scattered 
punctures, which are somewhat coarser on the sides and behind 
the eyes. Prothorax smooth anteriorly; the sides and hinder 
margin with coarse punctures ; lateral margins straight ; posterior 
angles much rounded. Scutellum Sanies with a few deep punc- 
tures. Elytra with the shoulders acutely angular; base and 
_Jateral margins with deep punctures; dorsal surface depressed, 
each with eight deep, longitudinal, punctate strize ; the interstices 
sparsely and obsoletely punctate. Head, prothorax and abdomen 
coarsely punctured beneath. 
This species, like all others of this genus, varies considerably 
in size, and the remarkable tridentate process at the base of the 
mandibles is entirely wanfmg in those of a minor development. 
/Ecus BLanvus ¢, Parry. 
ZE. subparallelus, niger; labro parvo, bidentato ; capite magno, 
antice emarginato, subtilissime granulato, opaco, postice 
nitido, pone oculos in spina obtusa producto, et fortius conflu- 
enter punctato; mandibulis capite brevioribus, arcuatis, spina 
obtusa prope basin armatis; prothorace transverso, nitido, 
sub disco sparse punctulato, lateribus rectis, ruguloso-punc- 
tatis, angulis posticis obliquis ; elytris nitidis, striatis, inter- 
stitiis planis, lateribus punctulatis ad apicem attenuatis; tibiis 
anticis 4 vel 5 spinis armatis, intermediis unidentatis, posticis 
inermibus; corpore subtus punctulatis; pedibus tarsisque 
infra plus minusve ciliatis. 
Long. corp. lin. 10; mandib. lin. 23. 
Hab. Ins. Salwatty, N. Guinea. 
There is but little doubt, from the shortness of the mandibles 
in comparison with the size and general appearance of the insect, 
that the former have not in the present instance attained their full 
development, and that in other specimens they will probably be 
found to be of a different character. In the female the mandibles 
are armed in the middle with a triangular tooth; the head and 
prothorax deeply and coarsely punctured, the anterior tibize being 
strongly dilated towards the apex, 
