204 Transactions. 



gradually become shorter and broader. Club elongate, oblong-oval. Eyes 

 prominent, placed at the sides of the rostrum, subtruncate behind, and 

 extending considerably downwards. Head much swollen behind, and ex- 

 tending downwards below the level of the prosternum ; above it is curvedly 

 contracted towards the eyes. Thorax longer than broad, its sides moderately 

 rounded, a good deal narrowed and constricted in front. Scutellum distinct. 

 Elytra biarcuate at the base and wider than that of the thorax, gradually 

 narrowed backwards. 



Legs of moderate length, tibiae strongly uncinate, their inner angle acute. 

 Tarsi narrow, basal joint nearly as long as the terminal, 2nd longer than 

 broad, 3rd narrow, excavate but not lobed. 



Underside nearly plane. Metasternum elongate, rather longer than the 

 basal 2 abdominal segments taken together, indistinctly sulcate, basal 

 segment very broadly impressed but not concave. All the coxae widely 

 separated. Rostrum, underneath, with a distinct median carina. 



Stilbocara in its general appearance does not resemble any of our genera 

 of the Cossonides, but looks like Toura (904), one of the Pentarthrides. 

 The body of Stilbocara though subdepressed is quite unlike Arecojjhaga. 

 The scape is very short and thick, the tibial hooks strongly developed, and 

 the polished occiput is remarkably prominent in every aspect. The rostrum 

 though shorter is similar to that of Toura longirostre. 



Stilbocara nitida, Broun. Ann. Mag. Nat. Hist., November, 1893. 



Glossy, sparingly clothed with very minute grey setae, but appearing 

 quite glabrous ; castaneo-rufous, rostrum and thorax rufous, tarsi paler. 



Rostrum very gradually and slightly narrowed towards the base, finely 

 and rather distantly punctured. Thorax unimpressed, distinctly but not 

 closely punctured, much more finely in front, the constriction forming 

 a slight depression across the front. Elytra evidently punctate-striate, the 

 suture and interstices with fine serial punctures, the 3rd deeply sunk behind. 

 Club large, opaque, but not dark, and densely pubescent. The external 

 hooks of the 4 hind tibiae are prolonged to the apex of the 2nd tarsal joint. 



$ . Length, If lines ; breadth, f line. 



Hunua Range, Clevedon. One. 



S. constricticollis, Broun. 942. Man. N.Z. Coleopt., p. 530. (Plate XVI, 

 fig. 5.) 



Shining, almost piceo-rufous, elytra hghter. 



Thorax rather shorter than in S. nitida, more coarsely and closely 

 punctured. Elytra with deeper and broader striae, near the suture and base 

 particularly ; interstices and suture seriate punctate. Funiculus more 

 elongate, the club rather shorter. Scape inserted before the middle. 



Female. — Pale ruf o - castaneous. Thorax more gradually narrowed an- 

 teriorly, antennae medially inserted. 



Underside shining, nigro-piceous, rather coarsely but not closely punc- 

 tured, 2nd segment with fewer and finer punctures, the 5th smooth in the 

 middle. 



3 . Length, 1| lines ; breadth, f line. 



Whangarei. Three. 



S. Serena, Broun. 2205. Man, N.Z. Coleopt., p. 1251. 



Shining, dark rufous, elytra and legs castaneo-rufous, the former paler 

 near the shoulders. 



