S. W. Kemp. 



Memoirs of the hid tan Museum. [Vol. Ill, 



Regd. No. ?^ KoImj, Abor Country, 400 ft. \ 



-^~ Janakmukh, Abor Country, 600 ft. 



"■^-■'(Spirit specimens) Rotung, Abor Country, 1400 ft. 

 .. ^^ ~i^ Ujjper Rotung, Abor Country, 2000 



ft. 

 "Jf^ Kalek, Abor Country, 3800 ft. 



T Cachar j. Wood-Mason. 



/ 912a iUSl <J1S3 MW-SI X 



'• ' \: '• ' Uibsagar J Stoliczka bequest, 



rr^-T-.^;-' J - ^ S. E. Peal, Moti Ram. 



. Ut4-: 670 7114 7119 J 



\i s'iL"' "' (^'^^s'H'l's Shillong Museum. 



V 14 ' W • / 



'-^' .. ■• Tavoy .. .. .. .Museum Collector. 



.10401 ( Between Thinganuyinauug and ^ 



'^ " "\ Sukli, Dawna Hills, 900-2100 ft. ) "' ^'"^^'>'- 



•' "is"'' 15^' •• Sukli, Dawna Hills, c. 2100 ft. .. F. H. Gravely. 



Mr. vSteven's collection includes a specimen collected by Mr. W. H. Webb at 

 Gopaldhara in the Rungbong Valley, Darjeeling District, and several from Silonbari 

 at the base of the N. I^akhimpur Hills. The Berlin collections include specimens from 

 Formosa (numerous localities), Hainan, S. Palawan, Tonkin, and Catchin Couri. The 

 British Museum collection includes also .specimens from Sin Lum, and Cambodia. 



Description.— Length 33-49 mm. Labruni as in A. leavicollis. Lamellae of 

 antennae much as in A. . leavicollis in small specimens,^ often proportionally shorter and 

 thicker in large ones. Mandibles also much as in ^. leavicollis in small specimens, the 

 recurved upper edge behind the left upper tooth often broader, especially in front in 

 larger .specimens, sometimes forming a stout secondary tooth in the largest of all, its 

 outer margin concave rather than convex. Mentum as in A . leavicollis. Anterior angles 

 of head much more prominent than in A. leavicollis in most small, but very little more 

 prominent in most of the largest specimens, almost always directed more or less inwards 

 in the former, in which, consequently, the supra-orbital and supra-occipital ridges 

 together appear to enclose more than half a circle; in the latter, the area enclosed by 

 the supra-orbital and supra-occipital ridges usually resembles almost and often quite as 

 perfect a semi-circle as in A. leavicollis; left outer tubercle somewhat less variable, 

 usually rather long and .slender, parallel sided, and scarcely forked ; sometimes broader 

 and shorter; rarely with even the faintest trace of an external enlargement ; right outer 

 tubercle variable as in A. leavicollis, usually more pronouncedly bidentate with the 

 two teeth somewhat nearer together ; frontal area often very short and broad , especially 



Of these specimens only the head and prothorax, in one case together with a single elytron, were 

 found. 



In one si)ecimen from vSikkim (No. 'y,}') there are only five lamellae altogether, that of the sixth 

 segment being suppressed or possibly reduced and fused with that of the fifth. I have seen no trace 

 of a lamella on the fourth segment of any specimen. 



