110 Lt.-Col. Winn Sampson on 



respects from, X. hirtus, Eiclih., and X. geminatus, Eiclih., 

 both described from single specimens taken in India (Dar- 

 jeeliug). 



The prothoracic tubercles vary in size in different speci- 

 mens, but there are generally four more prominent than the 

 rest. 



Xyleborus bryanti, sp. n. 



Black, semiopaque. Front slightly convex and strongly 

 punctured apically, becoming longitudinally aciculate to- 

 wards the vertex and having a short median elevation from 

 the epistoma to a slight central depression, also a transverse 

 row of pale hairs anteriorly ; eyes transverse and entire. 

 Prothorax subquadrate, anteriorly rounded but emarginate 

 in the centre and crenate on either side, rugose anteriorly 

 to the prominent central gibbosity, the posterior portion 

 smoother and punctured laterally, the basal angles sub- 

 rectangular. Elytra half as long again as the prothorax 

 and of equal width, sides nearly parallel to past the centre 

 and then narrowed to the rounded apex ; viewed laterally, 

 the elytra appear slightly elevated a short distance from the 

 base, this being caused by the local enlargement of the 3rd 

 and 4th interstices ; the striae consist of closely placed 

 shallow impressions with centres of minute dots ; the 1st 

 interstice obscurely tuberculate, the 2nd ceasing after the 

 basal third, being continued again from the declivity to the 

 apex, the 3rd interstice is the most prominent and is tuber- 

 culate from the basal third, the whole surface, except the 

 raised portions of the 3rd and 4th interstices, of a dull black 

 colour, the declivity being somewhat flattened. 



Long. 6'5 mm. 



Hab. Borneo, Sarawak (Mt. Matang) (Bryant). 



There is a similarity in the facies of this species and those 

 forming the cone-shaped group of Xyleborus, such as X. cune- 

 atus, X. andrewesi, etc., and the strial impressions are very 

 like those of X. comptus described below, these markings 

 differing from the umbilicate punctures of Crossotarsus 

 fairmairei, Chap., in the Platypodidse. 



Xyleborus submarginatus, Bldf., ? . 



Hab. India, Belgaum (Andrewes) ; Ceylon (Thivaites, in 

 Mas. Oxon.) ; Celebes ( Wallace) ; New Guinea, Dorey 

 {Wallace). 



A. single specimen was taken in Sarawak (Mt. Matang). 



