293 



A very distinct species, recalling to mind by its general appear- 

 ance the species referred to above under O. australis, Gu^r., but 

 with the base of its pronotum very differently margined, the 

 frontal carina of its male not elevated at the ends, the club of 

 its antennae dark, its size much less, &c., &c. 



N.S. Wales (Tamworth) ; Mr. Lea. 



O. Frenchi, sp. nov. Sat latus ; supra glaber ; subtus sparsim 

 fulvo-hirtus ; minus nitidus, subtiliter coriaceus ; aeneus, 

 nonnihil cuprascens, tarsis palpis antennisque ferrugineis 

 (harum clava nigricanti) ; clypeo ut O. Tamworthi, Blackb., 

 sutura clypeali (maris leviter, feminae sat fortiter) carinata, 

 carina frontali sat elevata (maris retrorsum arcuata, feminae 

 recta): capite inter carinas ut clypeus sculpturato ; oculis ut 

 O. Tamworthi ; prothorace quam longiori ut 18 ad 11 latiori, 

 supra crebre sat fortiter punctulato, supra sequali (foveis 

 sublateralibus et canali longitudinali postice minus perspicuo 

 exceptis), lateribus ante medium haud (pone medium vix 

 manifeste) sinuatis, angulis anticis vix obtusis leviter sub- 

 productis posticis fere nullis, basi vix perspicue (in medio 

 sat manifeste) elevato-marginata ; elytris subtiliter nitide 

 crenulato-striatis, interstitiis convexis subtilius sat crebre 

 (latera versus magis fortiter) punctulatis ; pygidio metaster- 

 noque fortiter nee crebre punctulatis. 

 Maris quam feminse tibiis anticis manifeste magis elongatis. 



Long., 3 1.; lat., 1 j?^ 1- 

 Not unlike the preceding but readily distinguished from it by, 

 inte'y alia^ its pronotum not transversely carinate. 

 N.S. Wales (Queanbeyan) ; Mr. Lea. 



O. henleyensis, Black. The differences between this species 

 and that which I have no doubt is juhatus, Har., are very con- 

 siderable but do not lend themselves readily to tabulation on 

 account of the great difference between the sexes of the latter. 

 In henleyensis the pronotum is in both sexes very evidently 

 coarser than in female juhatus, very much coarser than in male 

 juhatus ; both sexes are nitid, — the male of juhatus opaque; the 

 pronotum is pilose in front only in the male — in juhatus in both 

 sexes. The frontal horns in numerous examples of male 

 henleyensis are in their greatest development short stout conical 

 and divergent, — in the single male of juhatus examined they are 

 long slender and arched. On the whole the males of the two 

 species are not much like each other, while the females bear 

 considerable resemblance inter se. 



O. victoriensis, sp. nov. Sat latus ; supra glaber ; subtus fulvo- 

 hirtus ; subnitidus, elytris subtilissime coriaceis ; niger ; 

 clypeo grosse crebre subrugulose punctulato, antice sat 



