OXYRHYNCHUS SUTURALTS. 235 



NOTE XXXVII. 



DESCRIPTION OF A NEW SPECIES OF THE RHYN- 

 CltOPHOROUS GENUS OXYRHYNCHUS. 



BY 



W. ROELOFS. 



OxyrJiynchus suturalis , sp. n. 



Elongatus , fuliginosus , opacus , fossulis luteo-pulverosis 

 sparsutus. Sutura alba, prothoracis basi atomis albis ad- 

 spersa. — Long. 10 mm. rostr. excl. 



Of a narrower sliape tlian the other known species of 

 the genus. 



Deep black , with inconsiderable gloss , covered with 

 large punctures which are filled with a yellowish powder ; 

 the base of the prothorax , the outline of the scutellum 

 and the suture of the elytra furnished with a whitish 

 powder ^). 



Rostrum considerably widened posteriorly, rugose, with 

 a longitudinal impression between the antennae. Head 

 vaguely punctured. 



Prothorax comparatively more elongated than in the 

 other species , parallel at the sides posteriorly , bisinuated 

 at the base, covered with deep more or less pentagonal 

 pits which are provided with a powdery substance and 

 have an impressed puncture in the middle. The interstices 



1) It is difficult to make out the nature of this white investment which 

 has a grumose appearance and is neither scaly nor hairy. 



ISTotes from the X-ieyden Miuseum, "Vol. II 



