52 APOI.EON. 



sort of ridge, terminating in the angles of the sides. Be- 

 hind this ridge it is quickly contracted both laterally and 

 horizontally. The middle is longitudinally depressed, and 

 at the base of the head there is also a fine longitudinal 

 line. The anterior coxae are formed as in Polycaon^ Apate , 

 etc., i. e. they are subglobose, and they are contiguous 

 here as in Apate, the sockets being open behind. The 

 front tibiae present an important distinction , being quite 

 smooth externally and scarcely dilated at the apex. The 

 abdomen and other parts of the body do not appear to me 

 to present any important points of difference. 



Apoleon edax , sp. n. 



Breviter cylindricum , fuscum , parum nitidum , parce 

 pubescens , prothorace transverso , laterihus valde angidatis , 

 avgulis siibelevatis ., fere mucronatis, disco antice parce muri- 

 cato , medio utrinque tuherculis duohus parum distinctis , basi 

 constricto. Elytris crebre obsoletius punctatis , pube brevissima 

 lineatis. — Long. 13 — 15 millim. 



Hab. Laos {Mouhot)', Borneo: Sarawak (Wallace). 

 Coll. Gorham. — Sumatra: Soekadana {v. Hasselt). Mus. 

 Leyden. — Malacca. Coll. D. Sharp. 



This insect has been known to me for many years , 

 two specimens having been obtained by me from the col- 

 lection of W. W. Saunders Esqi". Sometime since my 

 friend C. Ritsema sent me for description a beautiful 

 example from Sumatra, and Dr. Sharp has very obligingly 

 lent me a specimen in his own collection for the same 

 purpose. These four examples are all that 1 have seen. 



The head with the mandibles is nearly opaque, closely 

 and finely granulated , the sculpturing of the mandibles 

 is coarse but generally hidden by the rough yellow pubes- 

 cence; the front part of the head is more or less coarsely 

 squamose, the eyes prominent, finely granulate. 



The thorax has the front with about twenty acute tuber- 

 cules on each side, the central channel and the base of 



Notes from the Leyden Museum, Vol. VII. 



