166 



Claris femoribus tibiisque anticis fere lit A. lindensis, sed 

 spinis (in illius parte media subtus positis) inulto brevioribus- 

 vel granuli formibus ; tarsorum anticorum articulo basali 

 paullo magis robusto et setulis elongatis vestito. 



Ferninae femoribus anticis ad apicem vix deorsum productis, 

 tibiis intus haud crenulatis, tarsis haud setulis elongatis 

 vestitis. Long., 1J — II- 1. ; lat., -^ 1. 



Distinctly larger than A. lindensis and without (or almost 

 without) any indication of the dark blotches at the base of the 

 elytra. Differs from the male of lindensis (and no doubt from 

 the female also) by the much less slender club of its antennae 

 and the notably larger basal joint of its front tarsi. The male 

 differs from the male of A. lindensis by the sexual ante-apical 

 e marginatum and apical tooth of its femora being present only 

 in the front pair and by the very much feebler inequalities on 

 the middle part of the undersurface of its front femora. Differs 

 from fasciculatus, De G. inter alia by its sexual characters. 



Widely distributed in Southern Australia. 



A. asperulus, sp. nov. Ovalis ; minus latus ; sat convexus ;. 

 piceus, pronoto antice elytris tibiisque dilutioribus, antennis 

 (clava excepta) rufis ; pube cinerea sparsim (exemplorum 

 visorum haud maculatim) vestitus ; antennis prothoracem 

 medium parum superantibus, articulo 9 G quam 10 us sesqui- 

 longiori : prothorace sat fortiter transverso, ante basin 

 anguste transversim depresso, in ceteris partibus aequali 

 nullo modo canaliculato, confertim minus subtiliter aspere 

 punctulato, angulis posticis extrorsum manifeste prominulis ;. 

 elytris striatis, striis cancellato-punctulatis, interstitiis aspere 

 subfortiter crebre punctulatis ; femoribus mox ante apicem 

 subtus profuncle emarginato, apice ipso deorsum (ut dens 

 parvus) acuto ; tarsis quam A. Jasciculati, De Geer, sat 

 brevioribus sat robustioribus ; coxis anticis inter se sat late 

 separatis. Long., 1J 1.; lat., ^o 1. (vix.). 

 I am not sure that a new genus ought not to be formed for 

 this insect on account of its short antennae, comparatively widely 

 separated front coxae, and curiously shaped femora, but as in the 

 preceding two species the first of the above characters is 

 approached and the last is even exaggerated, I think they may 

 be regarded as a gradual divergence from the typical characters 

 of Arceocerus rather than the indication of a really distinct 

 genus. The present species owing to its elongate oval form and 

 pubescence not condensed into spots (I do not think the two- 

 specimens before me are abraded) has scarcely the facies of 

 Arceocerus, but the preceding two species (which are undoubtedly 

 allied to it) have quite the facies of Arceocerus. The insertion of 



