DR. F. LEUTHNER ON THE ODONTOLABINI. 469 
to regard it as an undescribed species; but the mesodont form (fig. 6) reminded me so 
strongly of the description of O. sommeri, Parry (although this species does not bear 
that name in any collection), that I carefully investigated the subject, and was finally 
convinced of the correctness of this identification. The description and rough sketch 
which Major Parry received from Count Mniszech, and reproduced, agree in size and 
character with the present species, allowing for the omission of the colour of the elytra 
in the description, and of the canthus in the sketch. In order to verify the question 
beyond a doubt, I applied to Herr Bader in Hamburg (who came into possession of 
Sommer’s collection after the death of the latter) for information respecting Parry’s 
type; but I received the unwelcome intelligence that the type no longer existed in 
the collection when it came into his hands. As no collection contained a trace of 
O. sommeri, it occurred to me that this unique specimen must have been transferred 
to Count Mniszech’s collection during Sommer’s lifetime, and that the specimen in 
Van Lansberge’s collection, which agreed so well with Parry’s description and figure, 
was really the type. This led me to reject the incorrect locality Manilla, and to 
recognize this species as the doubtful 0. sommeri, of which I give a description above, 
taken from the series in Herr van Lansberge’s collection. 
24, ODONTOLABIS BROOKEANUS, Voll. (Plate XCV. figs. 15-15, 3; figs. 16-18, 2 .) 
3d. Odontolabis brookeanus, Voll. Tijdschr. Ent. iv. p. 107, pl. vi. fig. 1 (forma amphiodonta ; type; 
good figure). 
& 2. Odontolabis brookeanus, Parry, Trans. Ent. Soc. Lond. (3) ii. p. 15, pl. vi. fig. 5 (forma telo- 
donta ; good figure). 
Male. Brown, with straw-coloured elytra; head quadrangular, flattened, shining 
chestnut-brown ; canthus broad in front of the eyes, and then narrower; spine behind 
the eyes rather prominent, behind which the head is narrowed; emarginate in front, 
never crested; mentum and gula clothed with thick red hair; mandibles trimorphic ; 
prothorax broader than the elytra, straw-coloured, with a black spot in the middle 
above, as broad as the head, and frequently bisected by a pale line; sides of the 
prothorax with a middle spine, which is generally pointed, and near the base of which 
stands a black dot; prosternal process pointed, and projecting forwards. Elytra straw- 
coloured, shining, the base, suture, and scutellum black; legs black; front tibie long, 
curved, slender, with the terminal fork widened. Upper surface channelled, and two 
or three spines on the outer side. 
Mandibles. 
1. Forma telodonta.—Mandibles longer than the head, slender, and strongly sickle- 
shaped, flattened, with a single apical spine, followed by a fork on the underside ; 
base with a spine projecting forwards, Head with no frontal crest, and a broad 
epistoma-like clypeus resembling that of the Dorcini. ight specimens (fig. 13). 
