236 Memoirs of the Indian Museum. [Vol. Ill, 



Hamburg and Berlin collections ; and from Borneo in Mr. H. E. Andrews' collection 

 and the Berlin collections. 



Description. — Length 28-32 mm. This species is very closely allied to the preced- 

 ing, from which it differs chiefly in its smaller size. It also differs, however, in a few 

 other characters ; and, although some of these are very variable in the preceding 

 sp(îcies, I prefer to keep the two distinct for the present as I have seen no true 

 intermediates. I^amellae of A ntennae never very long and slender ; right outer 

 tubercle of head somewhat more truncate in profile than in laevimargo in fresh 

 specimens, the suture distinctly bent downwards; scars obsolete on mesosternum; 

 anterior part of tenth rib of elytra always punctured and hairy. 



A. alutaceosternus, Kuwert. 

 PI. xii, figs. 34-34'î; text-fig. 4C, p. 234. 



Regd. No. '^ Penang F. Stoliczka ? 



This specimen has been labelled Aceraius emarginatus by Stoliczka, and I have 

 little doubt that it is the specimen which he says he caught on Penang Hill (1871, 

 p. 158). I have also seen a specimen from Taiping 4000-5000 ft., in the collection 

 of the Deutches Entomologisches Museum. 



Description. — Length ^^- ^-^6-^ mm.. Labrum âsin A. laevicoltis. Mandibles also 

 as in that species, but with convexity behind left upper tooth exceptionally large. 

 Lamella of fifth joint of antenna short and devoid of the close pubescence with which 

 the five succeeding lamellae are clothed. Mentum slightly prominent and more or 

 less indistinctly grooved in the middle line in front. Anterior angles of head not pro- 

 minent. Left outer tubercle rather long and slender, bifid at the end, the anterior 

 angle somewhat longer than the inner one, the former directed somewhat upwards and 

 the latter downwards; right outer tubercle longer than in ^ . borneanus, hut shorter 

 than in A.wallacei, triangular as seen from above, imperfectly forked at apex in 

 profile. Prothorax mvich as in A. wallacei. Mesothorax as in ^. illegalis except for 

 the presence of a very small closely punctured area in the lateral angles of the 

 scutellum, and the absence of punctures from the posterior angles of the episterna. 

 Metasternum, hind coxae and abdominal sterna also much as in ^. illegalis. Elytra 

 with seventh rib sparsely, ninth somewhat more thickly punctured ^ ; tenth rib 

 with hair-bearing punctures in front ; hair long and not very thick. 



Aceraius himalayensis, n. sp. 



PI. xii, figs. 36-36«. 

 Regd. No. '^ f Sikkim f Stoliczka bequest, J. Wood- 



\ Mason. 



'™ '^f (type) Dikrang Valley H H. Godwin- Austen. 



^ <Sirpo River, Nr. 



I Abor Country 



M. de Courcy. 



Naga Hills Robert, through J. Wood- 



Mason. 



' This, however, is no doubt a variable character as it has proved to be in other species; 

 Kuwert's type only the ninth rib was punctured. 



