On new Wood-horing Beetles. 381 



distinct apical tooth, wliich is very similar to that which is 

 present in the female ot" //. forniosuSj Butler, is present on 

 the outer side of the iiand below, and a dentiform granule is 

 present on this tooth (Hg.). 



Hypoctomts birmanicus, sp. n. Chela of male. 



Onimatoids elongate-ovate, instead of round as in //. bing- 

 huvn; they arc separated from one another by a space which 

 is less than their width. 



Meukurements in mm. — Total length 23 ; length of tibia of 

 chela b; length of its apophysis 3, of the hand 4*25. 



Colour the same as II. hinghami, the legs pale red 

 throughout their length. 



Materidl. An adult male and two immature female 

 specimens from Pegu, Burma (Elorst Coll. ?). 



LII. — On Two new JVood-boring Beetles (Ipidse). 

 By Lieut. -Col. Winn Sampson, F.E.S. 



It is now nearly two years ago that I began an exhaustive 

 examination of the Ipidse (until recently called Scolytidie) 

 contained in the British Museum collection, to which have 

 recently been added the specimens collected by Mr. G.Lewis 

 in Japan and Ceylon. ]\[r. Ernest Green has ako been 

 good enough to scud a small number collected by himself in 

 the latter country. 



The tirst description now given is from a specimen in the 

 Fry Collection, the second from two specimens in Mr. Greenes 

 last consignment. 



Eccoptopterus Umbus, sp. n. 



Differt ab E. se.vspinoso, Motsch., truncaturse elytrorum ambitu 

 spina una valida compluribusque minoribus aciitis elevatis iufra 

 ornatis. Peclivitate elytrorum fortiter squamulis hirtis vestita. 



Patria Perak. 



Long. 3^ mm. 



One specimen (c?) in the British Museum. 



