534 



AUSTRALIAN STRONGtLIlNiE, &C., 



Fig. 7. 



Pterohelceus sericeus. 



Head and pronotum very densely and finely punctate, epistoma 

 straight in front, sides obliquely raised to the canthus, limiting 

 suture faintly impressed, eyes rather widely separated, antennae 

 short, joints submoniliform, apical four transverse, the last nearly 

 spherical. Prothorax 2x4mm., anterior angles widely obtuse 

 but advanced, sides arcuately diverging to base, posterior angles 

 acute and strongly produced backwards, 

 base bisinuate, explanate margins horizon- 

 tal but punctured like disc, extreme border 

 not raised, central line depressed and sub- 

 Isevigate. Scutellum transversely trian- 

 gular, punctate. Elytra convex, of same 

 width as prothorax at base and nearly 

 three times as long, ovately widened to 

 beyond halfway, and widely rounded be- 

 hind, lateral margins horizontal, moderately 

 wide, but contracting towards apex, ex- 

 treme border raised; a well marked line of 

 lateral punctures, and some ver}^ indistinct lines of punctures on 

 disc becoming obsolete towards suture; surface generally uneven, 

 with some almost obsolete wavy costse, the whole surface densely 

 covered with minute punctures presenting a subopaque and silky 

 appearance, underside minutely and closely punctate, with some 

 larger punctures sparsely scattered on sternum, tibiae serrated on 

 outside, especially the protibise. Dimensions, 9 x 5 mm. 



Hah. — Banana, Queensland (E. Barnard, per Mrs. Hobler). 

 Two specimens, sex doubtful, differ from all described species 

 in sculpture, and in the finely serrated tibiae. Indeed, this latter 

 character suggests generic distinction. In shape, like P. ovulus 

 Haag Rut.; in sculpture, nearest to P. nitiduloides mihi, near 

 which it should be placed. Type in the author s Coll. 



O M o L I p u s Pasc. 



Synonymy. — 0. corvus Pasc., = 0. grandis Macl. 0. cyaneus 

 Pasc, = 0. chalyheus Geb. 0. oblongus Bates, = 0. affinis Geb. 



Macleay's species, 0. grandis, is only a large-sized case of 0. 

 corvus Pasc, a common species round Brisbane, and in Southern 



