160 POLYCTESIS IGORROTA. 



Underside coppery, the meso- and metasternum as well 

 as the abdominal segments with a yellow spot on the sides. 



Sculpture similar to that of rliois , but finer , with excep- 

 tion however of the head , where it is as coarse if not 

 slightly coarser. Thorax very finely punctured along the 

 middle of the disk, coarsely so on the sides where the 

 punctures are separated by narrow transverse wrinkles; 

 along the middle the thorax is shallowly impressed, the 

 impression deeper and better limited at the base; more- 

 over a rather indistinct basal impression is present near the 

 lateral angles. 



Sides of elytra straight in their basal fourth , then sinuate , 

 and furnished at the end of the straight portion with a 

 small tooth ; elytra punctate-striate , the striae behind dee- 

 per and broader , interstices sparingly striate-punctate , the 

 punctures in the anterior half of the first, second and 

 third interstices almost completely obliterated , those of the 

 other interstices becoming deeper and closer towards the 

 apex and sides. Outer margin of elytra from the middle 

 to the tip finely serrulate, apex of each truncate and 

 ending in four teeth , the outermost of which stretches 

 beyond the sutaral one. — Sutural margin behind distinctly 

 raised. 



The whole insect is thinly sprinkled with short white hairs. 



P. igorrota may be distinguished from P. foveicollis 

 Fairm. from Cambodia (Ann. Soc. Ent. France, 1888. p. 

 344 — 45) by its smaller size, by the spotted elytra, by 

 the fine interstitial punctures , etc. etc. 



This interesting new species from the Philippine Islands , 

 and P. rhois Mars, which occurs in Egypt , Cyprus and 

 Syria, are, with P. foveicollis Fairm. the only known 

 representatives of this genus. It was discovered in the 

 North of Luzon near Vigan by Dr. R. Schadenberg , to 

 whom the Royal Dresden Museum is indebted for two 

 specimens of it. 



Royal Zoological Museum, Dresden, June 1891. 



Notes from the JLéeyden IMuseum, "Vol. XILL. 



