Mr. C. 0. Waterhouse on new Pectinicorn Coleoptera. 35 



is produced into a tooth which is more prominent than in 

 allied species. The mandibles are less flat than in P. sene- 

 galensis, with a small tubercle on the inner margin near the 

 base ; a larger one in the middle, and a third near the apex ; 

 and between this and the apex may be seen two very small 

 tubercles. The thorax has the oblique part at the posterior 

 angles almost straight, and not sinuate as in P. senegalensis. 

 The elytra are very similar, but flatter and less narrowed at 

 the base, moderately closely and distinctly punctured, but 

 towards the sides the punctures are inconspicuous, on account 

 of the very dull surface. The mentum is broader, more con- 

 cave, and less punctured than in P. senegalensis. 



Three specimens of this interesting species were received 

 from the late lamented Bishop Hannington. 



Metopodontus astertscus, Th. 



This species is considered in Parry's Catalogues of Luca- 

 nidse as synonymous with M. occipitalis. In the British- 

 Museum collection there are several female examples from 

 Borneo which agree with M. Thomson's description of M. 

 asteriscus, and they all differ from the female examples of 

 M. occipitalis from the Philippine Islands in being less 

 shining, and much more strongly punctured, and in having 

 the black at the suture of the elytra narrower. If I am cor- 

 rect in identifying these Bornean specimens with M. asteriscus, 

 there can be little doubt that it should be considered a distinct 

 species from M. occipitalis. 



Metopodontus Rcepstorffi. 



Piceo-flavus, nitidus. Capitis lateribus, mandibulis plus miuusve, 

 thorace maculis tribus, elytrorumquesutura nigris. Corpore sub- 

 tus pedibusque nigro ornatis. 



J var. min. Long. (mand. incl.) 13 lin. 



5 . Long. 11| lin. 



Hab. Andaman Islands (Rcepstorff). 



This is very close to M. occipitalis, but I think may well 

 receive a distinctive name. The mandibles of the male are 

 as long as the head, pluridentate. The head is rather narrow, 

 semicircularly emarginate in front, rather straight at the sides, 

 with a small tubercle behind the eye. Two oblique brown 

 marks above indicate the ridges of the larger varieties. The 

 thorax is densely granular and sparingly punctured, gently 

 arcuate at the sides. The elytra are moderately closely and 

 very distinctly punctured ; the black at the suture is lanceo- 



3* 



