MELANAUSTER MEDENBACHH. 1^9 



NOTE XL 



DESCRIPTION OF A NEW SPECIES OF THE LONGI- 

 CORN GENUS MELANAUSTER, THOMS. 



BY 



C. RITSEMA Cz. 



Melanauster Medenhachii , sp. n. 9* 



Length 36 — 40 mm. — Black, with steel-blue elytra; 

 body and legs covered with a grey pubescence, which is 

 interrupted on the elytra so as to form four transverse 

 regular bands ; moreover the space between the eyes and 

 mandibles, the hinder portion of the pronotum and the 

 shoulders and extreme base of the elytra are naked ; the 

 antennae riuged with a grey pubescence on the base of 

 the 3rd and following joints. 



The head and the prothorax very sparingly punctured , 

 the former provided with a smooth line extending froHT 

 the anterior margin of the clypeus up to the prothorax, 

 the latter with three transverse grooves , one anteriorly , 

 the two others near the base and preceded by a post- 

 median rather indistinct tubercle. The lateral thoracical 

 spines straight, strong and acute. The scutellum broadly 

 rounded at the apex. 



The base of the elytra is provided with granules , which 

 are gradually replaced by punctures becoming less and less 

 marked towards the apex; the granules are very rare near 

 the scutellum , but very densely set and large on the slioul- 



Notes froru the Leyden ÜMuseuin, Vol. IH, 



