Coleopterous Subfamily Dynastlnge. 159 



Ilab. Trobriand Is. : Kiriwini {A. S. Meek). 



Herr C. Felsche has received a series of specimens, of 

 winch he has kindly presented a pair to the British Museum. 

 The species is smaller than those just described and differs 

 from all hitherto known in having only three teeth to the 

 front tibiae. It is very smooth and shining above, with 

 the elytra and the pygidium very strongly punctured. The 

 male lias a short but slender horn on the head and the 

 pronotum is horizontally produced into a short broad lobe, 

 sharply pointed on each side. The lateral margins also bear 

 a blunt prominence on each side a little behind the front 

 angles. 



Pseudohomonyx crassus, sp. n. (PI. V. fig. 6.) 



Niger, nitidus, elongatus, pectore abdominisque lateribus rufo- 

 hirsutis, capite sat aequaliter transversim plicato, clypeo antice 

 attenuate, truucato ; prothoracis lateribus tenuiter punctatia, 

 antice paulo fortius, anguste margiuatis ; scutello vix punctato ; 

 elytris grosse punctato-striatis, stria secunda antice, 4" et 5* 

 postice, abbreviatis, apicibus irregulariter grosse punctatis ; 

 pygidio antice punctato, postice Isevi : 



(5 , protborace antice sat late impresso, margine antico acute 

 tuberculato ; pygidio antice confuse annulato-punctato : 



$ , protborace omnino Itevi ; pygidio lateraliter grosse, medio 

 subtiliter, punctato. 



Long. 21-24 mm.; lat. max. 11-5-13 mm. 



Hah. N. Borneo ; Kina Balu, Labuan I., Sanga Sanga. 



This is a species very closely related to P. borneensis, 

 Arrow, but ratiier larger, with finer lateral margins to the 

 pronotum and the elytral striae coarse but less deep. The 

 pygidium is also much less strongly sculptured in both sexes, 

 with its apical half smooth and shining. The male has a 

 much larger and deeper impression on the pronotum, about 

 as wide as it is long, and a sharp conspicuous tubercle in 

 front of it. 



Labuan I. was erroneously included as a locality for 

 P. borneensis. 



Prof. Kolbe has proposed the name Heteroligus for various 

 species formerly included in the genus Heteronychus, but 

 which seem to me to include three well-marked generic types. 

 As in the case of other genera created by him, Prof. Kolbe 

 has contented himself with a very casual and fragmentary 

 reference which affords no means of determining to which 

 of these types his name ought to be applied. I therefore 

 select as the type of Heteroligus the first enumerated and 



