AEGUS PENGALENGANUS. 127 



pale scales, giving a somewhat velvety lustre in cevtaiu lights. 



Undersurface shining , delicately and distantly punctured , 

 more evidently along the sides and on the abdomen, the 

 last ventral segment rather thickly punctate, the jugulum 

 and meutum scattered with a few large pits. Tibiae and 

 tarsi clothed with long' soft flavous hairs, forder tibiae with 

 three teeth before the terminal fork, intermediate tibiae 

 with from one to three , posterior tibiae with a single spine 

 on the outer edge. 



The female has the frontal tubercles fused, forming a 

 broad transverse process , slightly emarginate in the middle ; 

 the mandibles short and concave, very obtuse at the tip, 

 with a very blunt enlargement in the middle ; the thorax 

 somewhat more narrowed towards the front-margin , the 

 elytra slightly swelling out behind the middle; the upper- 

 surface densely and rugosely punctured, more thickly clo- 

 thed with pale bristles and consequently less brilliant , more 

 of a velvety appearance; the mentum roughly punctured. 



Length: cT 12'/2— 14mm., 9 11— 12mm. 



Hab. Pengalengan , Preanger Residency (Fruhstorfer). 



A eg us preangerensis v. d. Poll. 



Black, subnitid. Mandibles valid, about of the length of 

 the head , falcate , at the base with a strong process which 

 is slightly emarginate at the tip. 



Head moderately swollen , depressed in front in a trans- 

 verse direction ; the front-margin slightly emarginate, lobed 

 at the base of the mandibles, and provided in the middle 

 with two contiguous very blunt nodosities ; ocular canthus 

 rounded, forming an angle with the lobes of the front 

 margin, post-ocular process large, strongly projecting, the 

 tip broadly truncated; subopaque, quite inconspicuously 

 punctured in front, more evidently on the disc, leaving a 

 smooth space at the base, deeply pitted near and behind 

 the eyes. 



Prothorax much broader than long , the sides subpa- 

 rallel for two thirds of their length, thence deeply emar- 



Notes from thie Leyden Museum, "Vol. XVII. 



