184 OXYRRIIYNCIIUS RF,(U!LARIS. 



curved line to the apex. The shoulders and apical tuber- 

 cles are uot well observable. Between the scutellum and 

 the lateral white stripe the anterior margin of each elytron 

 is reflexed , but slightly so in the female , very strongly 

 however in the male. In the latter sex it is directed 

 upwards and forwards , leaves a cavity beneath it and is 

 deeply notched in front of the 3rd interstice. The elytra 

 are regularly punctato-striate ; the punctures tolerably large 

 and deep and rather wide apart. The 2nd and 4th interstices 

 are more distinctly raised than the others , subcostiform. 



The undersurface and the very elongate legs are rather 

 strongly punctured. 



Several specimens of both sexes from Borneo (Dr. S. 

 Muller) , the largest of which (a male) shows traces of the 

 posterior half of the white dorsal cross. 



3. Oxyrrhynchus regularis , n. sp. cT and Q. 



Allied to 0. rivulosus Bohem. but considerably larger 

 (measuring from the anterior margin of the thorax to 

 the apex of the elytra lO'/j — 13 mm.) and proportio- 

 nately broader ; the basal margin of the elytra in the male 

 sex is but slightly reflexed , not produced nor strongly 

 crenated as in the corresponding sex of rivulosus. More- 

 over the shoulders of the elytra are more prominent, the 

 sides more parallel and the punctures arranged in very 

 regular longitudinal rows. The longitudinal interstices are 

 narrow and regular ; on the apical third of the wing cases 

 they are all slightly raised , on the basal two thirds only 

 the alternate ones; the transverse interstices are likewise very 

 regular. The longitudinal interstices (the sutural ones in- 

 clusive) are provided with a more or less continuous row 

 of small punctures. 



In this species, especially in the females, traces of white 

 markings frequently are present, the disposition of which 

 corresponds more or less in detail to that of the markings 

 of the following species. 



Notes from the Leyilen IMuseuixi, "Vol. IV- 



