56 Major Parry’s Catalogue 
posterior angles is an oval polished patch. The elytra and scu- 
tellum are punctured at the base; the former are punctate-striate, 
the 2nd and 7th, 3rd and 4th, and also the Sth and 6th strie 
being united at their extremities. The anterior tibiz are serrated 
along the outer margin, with two strong teeth at the apex; the 
middle tibiae are armed with two spines, and the posterior ones 
with a single spine in the middle of the outer edge. 
This species is most nearly allied to Dorcus capitatus,* Westw. 
(Trans. Ent. Soc. iv. 275), but differs from the large males of 
that species in the much-advanced position of the strong tooth of 
the mandibles, and in the very slight development of the tubercle 
on each side of the disc of the head before the eyes ; agreeing in 
this respect with D. parallelus, Hope (Cat. Lucan.), from the 
Khasyah Hills, whilst Major Parry’s insect is from Darjeeling. 
The D. parallelus is indeed considered by Major Parry to be a 
small variety of D. capitatus; but the latter is from Malacca 
and Prince of Wales’ Island, and I should be inclined to regard 
D. parallelus rather as the varietas minor of D, labilis. D. sinister 
(Hope, Cat. Lucan.), also from Prince of Wales’ Island, is, doubt- 
less, the female of D. capitatus, as Major Parry suggests. 1 have 
also scarcely any doubt that the female insect named D. Malaba- 
ricus (Hope, MS.; Westw. Trans. Ent. Soc. iv. 276) is identical 
with D. sinister ; and in like manner I also consider that D. equals 
(Hope, MS.; Westw. Trans. Ent. Soc. iv. 276) is most probably 
identical with D. parallelus, 
D. labilis is also closely allied to D. Eschscholtzii, Hope, but 
that is a considerably smaller insect, with a more polished upper 
surface, the anterior lateral angles of the head destitute of 
tubercles, and the pronotum destitute of the punctured impression 
in the middle. 
P]. XII. fig. 5. The insect of the natural size; 5a, the eye entirely divided by 
the canthus ; 4b, maxilla; 5c, the mentum, lobes of maxille and 
palpi; 5d, labium and its palpiimJ. O. W.] 
Ecus PLATyopon 6, Parry (var. max.) (Pl. X. fig. 1.) 
AE. niger, parum nitidus; mandibulis falcatis, ad basin dente 
magno trifido armatis; capite magno, transverso, antice in 
medio profunde emarginato; elytris punctato-striatis ; scutello 
sparsim et fortiter punctato; tibiis anticis serratis denticulis 
* In the description and figure of this species in the 4th volume of these 
Transactions, the middle tib:z are described as possessing only a single spine on 
the outer edge. They, however, agree ia this respect with D. labilis, 
