of Lucanoid Coleoptera. 15 
nodosis irregulariter instructis, apicibus subfurcatis; capite 
magno, antice depresso, margine subelevato, angulis anticis 
oblique rotundatis, et infra oculos spina magna obtusa in- 
structo; prothorace transverso, capite latiori, lateribus an- 
tice obliquis, angulis posticis emarginatis; elytris subova- 
libus, brunneo-testaceis, leevissimis, latitudine prothoracis, 
marginibus externe suturaque tenuiter nigris; tibiis anticis 
curvatis, et prope apicem spina minuta armatis, quatuor 
posticis inermibus, 
Long. corp. une. 2, lin. 5; mandib. lin. 9. 
Hab. Sumatra. Coll. Castelnau. 
For the opportunity of placing this magnificent new species of 
Odontolabis, as well as the three preceding, in the present publi- 
cation, I am indebted to Count Mniszech, who, through the kind- 
ness of Count de Castelnau, was enabled to obtain the accompanying 
faithful figures, executed by M. Migneaux. ‘The above species 
belongs to the section of Odontolabis having (like O. bicolor, O. 
Dejeanii, and other species) the prothorax broad, with the sides 
dilated, and the fore tibize curved; it is one of the largest species 
of Lucanoid Coleoptera, and, when found with the mandibles fully 
developed, must indeed be gigantic. It is dedicated to Count de 
Castelnau, to whom Entomologists are much indebted for many 
interesting novelties. 
OponTorazis striatus, 6, 9, H. Deyrolle, MS. 
A new and interesting species from Malacca, in the collection of 
Count Mniszech, the description of which will appear in the Ann. 
Soc. Ent. Fr. for 1864. Both the ¢ and @ are strongly pubescent, 
and in this respect the species assimilates somewhat to O. Dalmanz, 
Hope; but in its general form it approximates more nearly to 
O. platynotus, Hope, with which I have for the present located it. 
OpvontotasBis Brooxeanus 6, @, Voll. Tijd. v. Ent. iv. 107, 
tab. vi. fig. 1. (Pl. VI. fig. 5, var. max.) 
O. fuscus, nitidus; elytris pallide testaceis, sutura tenui nigra ; 
mandibulis dilatatis depressis, capite parum_ brevioribus, 
arcuatis, interne denticulatis ; prothorace plaga nigra ma- 
culato, angulis posticis valde emarginatis; tibiis anticis 
curvatis supra sulcatis, extus 2 aut 3 spinis minutis armatis, 
quatuor posticis inermibus. 
(Var. max. 6) differt mandibulis longioribus gracilibus falcatis 
apicibus acutis, prope basin unidentatis et intus pone medium 
