Tenebrionidgeyrom Australia and Tasmania. 289 



pens truncate in front, its suture obsolete. Eyes moderate, 

 distant above. Antennas rather short, the third joint twice as 

 long as the second, fourth to eighth gradually shorter and 

 broader, ninth and tenth transversely obconical, the last 

 rounded. Mentum trapeziform, narrow at the base, strongly 

 convex on the median line ; lower lip transverse, rounded at 

 the sides, slightly emarginate in front. Maxillary lobes nar- 

 row, the inner falciform, not produced into a hook. Labial 

 palpi with the last joint very large, broadly obconic. Pro- 

 thorax transverse, broadly emarginate at the apex, anterior 

 angles rounded. Elytra oblong, convex ; epipleurge gradually 

 narrower behind. Legs rather short ; basal joint of the pos- 

 terior tarsi longer than the two next together. Mesosteraum 

 deeply notched. Intercoxal process narrowly triangular. 



Tlie type of this genus has no very obvious affinity to, and 

 is different in habit from all others of this subfamily, although 

 its technical characters are not veiy special. The internal 

 maxillary lobe, unlike most of the genera of the Cyphaleinag, is 

 not produced into a hook, although the apex is pointed. 



Opigenia iridescens. 



0. ohlongo-ovata, modice convexa, aureo-viridis, in certo situ pur- 

 pureo resplendens. 



Hah. Victoria. 



Oblong-ovate, moderately convex, golden-green, with rich 

 purple reflections ; head rather finely and closely punctured ; 

 antenna? glossy feiTuginous ; prothorax finely but less closely 

 punctured than the head ; scutellum triangular, black ] elytra 

 broader than the prothorax, their greatest breadth a little 

 behind the middle, seriate-punctate, the punctures small and 

 not approximate, the intervals of the rows broad and finely 

 punctured ; body beneath and legs glossy black, the fomier 

 finely punctured. Length 6 lines. 



Hectus. 

 Subfamily Cypsaleinje. 

 Prostemum antice productum, carinatum. 

 Processus intercoxalis brevis, antice rotimdatus. 

 Oculi liberi. 



In other respects this genus agrees with Lj/fjestira^ except 

 that it has no raised lines on the elytra — if that be a generic 

 character. My specimen, the only one I have seen, appears 

 to be a male, but it lias the anterior tarsi only dilated ; in 

 Lygestira, judging from the few examples I have been able to 

 examine, the intermediate tarsi as well are dilated, although 

 but sliglitly. 



