126 PROSOPOCOELUS JAVANENSIS. 



the forma maxima are said to have a short valid basal 

 tooth , in the middle on the right mandible a long pointed 

 tooth and on the left an obtuse one ■, finally before the tip 

 some small teeth , separated by an emarginatiou from some 

 other faint denticulations. 



Length : 45 mm. 



Hab. Lawang, Pasaroean Residency (Holz). 



Aegus pengaletiganus v. d. Poll, 



Black , subnitid. Mandibles about of the length of the 

 head , gently curved , armed at the base with a large blunt 

 tooth directed somewhat obliquely backwards when they are 

 closed ; compressed between the tip and the basal tooth, 

 the inner-upper-margin angularly swollen before the middle 

 which seems to indicate the existence of a tooth in higher 

 developed individuals. 



Head with the front-margin slightly concave and provided 

 with two rather large and very distant tubercles; outer 

 margin of the ocular cauthus entire, post-ocular process 

 very large , projecting but obtuse ; between the eyes and 

 the base of the mandibles there is a somewhat swollen 

 space ; finely and not very closely punctured , the punctures 

 becoming much larger near and behind the eyes. 



Prothorax not quite twice as broad as long, with the 

 sides almost parallel and passing insensibly into the basal 

 margin on account of the broadly rounded hinder angles, 

 anterior angles prominent and rounded ; grooved along the 

 margins, much more broadly so along the lateral ones, 

 which are fringed with short pale bristles ; uniformly and 

 strongly punctured. 



Elytra rather parallel for the greater part of their length, 

 comparatively obtusely rounded at the tip, shoulders not 

 much marked , obtuse ; each elytron with seven deeply im- 

 pressed striae of which the three outermost become gradually 

 shallower and narrower, the interstices strongly punctured , 

 the sides and the apical portion very closely and subru- 

 gosely punctured, all the i)unctures bearing very minute 



Notes from the I-ieyden JMiiseum, "Vol. X.VII. 



