406 REVISION OF THE GENUS SEIROTRANA, ETC., 



above; on closer examination, the following comparison of char- 

 acters will readily differentiate H. nitida : — 



H. australis. — Colour brown, moderately nitid. Sides of pro- 

 thorax subparallel till near front angle. Pronotum finely but 

 evidently punctured. Elytral intervals punctate. Punctures in 

 striae indistinct. Pro- and metasternum strongly punctate. 

 Abdomen rugose. Legs and abdomen concolorous, piceous. 

 Under surface of legs punctate. Dimensions — 8 x 3 mm. 



H. nitida. — Colour black, very nitid. Sides of prothorax 

 rounded and narrowed anteriorly. Pronotum scarcely punctate. 

 Intervals smooth. Punctures in striae strongly marked. Pro- 

 and metasternum smooth. Abdomen faintly strigose. Legs a 

 much lighter colour than the abdomen. Under surface of legs 

 smooth. Dimensions — 6 x 2-8 mm. 



The wide difference of locality is also to be noted, West Aus- 

 tralia being stated in Masters' Catalogue as the habitat of H. 

 australis Boisd. (My own specimens have no locality-label). 



Pterohel^eus nitiduloides, n.sp. 



Broadly ovate, depressed, reddish-brown; legs, flanks, and 

 suture near scutellum red. 



Head with narrow, square, truncate clypeus, divided from the 

 front by a raised tuberculate impression; behind this the front 

 hollowed in centre and strongly punctate. Antennae short (at 

 rest extending to one-half length of prothorax) with the apical 

 joints strongly clavate, apical joint globular and hairy. Pro- 

 thorax very transverse, almost semicircular anteriorly, subtrun- 

 cate posteriorly, with narrowly reflected border becoming obsolete 

 near hind angles; anterior and posterior angles obtuse, much 

 wider at base than at apex, sides gradually and evenly rounded, 

 but suddenly incurved near base. Disc without central canal, 

 and covered with short, decumbent, reddish pile, beneath which 

 are obscure rugose punctures. Scutellum widely elliptic. Elytra 

 narrower than prothorax, sides nearly parallel; bluntly rounded 

 at apex, with very narrow border obsolete at apex. Disc covered 

 (but far more sparsely than pronotum) with fine recumbent red 



