412 REVISION OF THE GENUS SEIROTRANA, ETC., 



its vertically placed head, almost resembling in this respect the 

 genus Bostrichus. 



Byallius kosciuskoanus, n.sp. 



Elongate-oval, moderately convex; black, subnitid, antennae 

 piceous-red; antennae, labrum, and tarsi clothed with golden pile. 



Head closely, coarsely punctate, labrum and rounded sides of 

 inentum prominent, the former separated from the ctypeus by a 

 brown membrane. Clypeus truncate, without epistomal ridge, 

 with front angles rectangular. Antennal orbits prominently 

 raised and parabolically rounded in front of eyes. Antennae 

 with third joint at least as long as fourth and fifth combined; 

 joints 4-7 obconic, 9 and 10 oval, 8 intermediate in shape between 

 7 and 9, 11 much longer than 10, oval; apical joints flatter, less 

 nitid, and lighter in colour than basal. Prothorax very convex, 

 wider than long (5x7 mm.), with greatest width near base, wider 

 at base than at apex; sinuate in front, anterior angles prominent, 

 acute and a little reflexed. Sides scarcely foliaceous, little 

 rounded, with the thickened edge more upturned towards front 

 than towards base, edge much thinner at base and apex; posterior 

 angles widely obtuse, scarcely distinct and deflected. Disc 

 finely punctured, sometimes with a transverse line near base form- 

 ing a basal lobe. Scutellum widely transverse and triangular, 

 punctured as on pronotum. Elytra ovate and strongly convex, 

 wider than prothorax at base, about once and one-half longer 

 than wide, gradually widening posteriorly, greatest width at 

 apical third. Reticulately rugose, with three rows of wavy sub. 

 costate lines on each elytron; the whole distinctly but finely 

 punctured, and margined by a thin subcrenulate border. Legs, 

 abdomen, and sternum coarsely punctate. Dimensions 18-21 x 

 7|-11 mm. 



Hah. — Lower slopes of Mount Kosciusko, near Jindabyne, 

 N.S.W. (taken by the author): 



This insect differs from the only other member of the genus 

 (/>. reticulatus Pasc.) in the following particulars. Prothorax 

 shorter, in proportion to length, much more convex, and with 





