BY THOMAS G. SLOANE. 291 



iV. incrassatus is easily identified by prothorax with basal angle 

 marked; elytra with humeral angles dentate, eighth and ninth 

 interstices narrow, tenth interstice elongate. It differs from N. 

 australasice, Dej., by the features mentioned above, and also by 

 — ia) the border of the prothorax much narrower, less reflexed 

 and hardly developed on sides of base, (6) border of elytra much 

 narrower near the base. It is a species of variable width; the 

 form which I look upon as the typical one is that from the 

 vicinity of Sydney, which is wholly black, and has the border of 

 the prothorax subsinuate at the basal angles. Specimens from 

 Springwood and Appin have the border meeting the base without 

 any sinuosity, which causes the basal angles to be obtuse, though 

 marked. Specimens from Bulli (where it is common on the 

 heavily wooded mountain) have the elytra purple, and are of 

 narrower form than those found about Sydney. A specimen 

 from Wollongong is of still more elongate form (13-5 x 4-5 mm.), 

 and has the prothorax and head more elongate, eyes less pro- 

 tuberant and more strongly inclosed behind (the convexity and 

 prominence of the eyes differ in other species besides N. incras- 

 satus). 



NOTONOMUS LEAI, n.sp. 



Robust, convex, subparallel. Head thick (2*8 mm. across eyes), 

 convex; prothorax subquadrate, rounded on sides; basal angles 

 obtuse; posterior marginal puncture on border at basal angle; 

 lateral basal impressions wide, deep, foveiform; elytra truncate- 

 oval, lightly striate; interstices hardly convex, third 2-punctate, 

 eighth narrow and lightly convex, ninth very narrow and convex. 

 Black; elytra subnitid, often with a purple or greenish tinge, 

 hardly more opaque in 9 than in (J. 



Head wide and convex between eyes; front lightly biimpressed 

 between antennae; eyes convex, not prominent. Prothorax convex, 

 broader than long (3*7 x 4*5 mm.), widest about middle; sides 

 lightly and evenly rounded, decidedly narrowed to apex, meeting 

 base without any sinuosity; apex hardly emarginate; anterior 

 -angles obtuse, not prominent; base (3*5 mm.) wider than apex 



