DE. F. LEUTHNEE 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 0. sommeri, Pariy (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 

 0. 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 mcorrect 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 beooeeanus, VoU. (Plate XCV. figs. 13-15, d ; figs. 16-18, ? .) 



S . Odontolabis brookeanus, Voll. Tijclsckr. Ent. iv. p. 107, pi. vi. fig. 1 (forma amphiodonta ; type ; 



good figure). 

 (J ? . Odontolabis brookeanus, Parry, Trans. Ent. Soc. Lend. (.3) ii. p. 15, pi. vi. fig. 5 (forma telo- 



rlonta ; 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 pomted, 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 tibite 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 Lorcini. Eight specimens (fig. 13). 



