261 



Further Notes on Australian Coleoptera, 

 WITH Descriptions of New Genera and 

 Species. 



By the Rev. T. Blackburn, B.A. 



[Read October 27, 1903.] 



XXXIII. 



CARABID^. 

 PHORTICOSOMUS. 



P. calcaratus, sp. nov. Piceo-brunneus, elytris postice et pronoto 

 aDguste testaceo-marginatis ; capite permagno, sparsim 

 obsolete punctulato, utrinque inter oculos impresso, sutura 

 clypeali profunde sulcata ; prothorace quam longiori fere 

 duplo latiori ; postice quam antice vix angustiori, leviter 

 canaliculato, latitudine majori paullo ante medium sita, 

 lateribus sat anguste reflexis fortiter arcuatis ante basin 

 sinuatis, angulis posticis sat acute rectis anticis sat rotun- 

 datis sat prominentibus ; elytris fortiter striatis, interstitiis 

 leviter convexis (3° pone medium punctura setifera instructo); 

 tibiis anticis ad apicem processu magno acuto extus armato 

 et supra hunc denticulis 5 parvis; tibiis posterioribus 4 extus 

 denticulis circiter 8 instructis et ad apicem dilatatis. Long., 

 6i l; lat., 21 1. 

 Remarkable by the strongly defined external sculpture of its 

 tibiae. P. Horni, Sloane, has an apical external process on the 

 front tibiae, but in that species it is shorter and blunter and the 

 denticulations above it are very much smaller; no other 

 Phorticosomus known to me has a similar tibial structure. In 

 other respects this species resembles the insect that Mr. Sloane 

 agrees with me in regarding as P. grandis, Cast., but has a con- 

 siderably more strongly transverse prothorax, that segment being 

 scarcely less (by measurement) than twice as wide as long. 

 Tropical Queensland ; taken by Mr. T. W. G. Blackburn. 



LOXANDRUS. 



L, micantior, sp. nov. Modice elongatus, postice nonnihil 

 dilatatus ; minus depressus ; niger, certo adspectu violaceo- 

 iridescens, tibiis antennisque picescentibus, palpis tarsisque 

 ferrugineis; oculis modice convexis; prothorace quam 

 longiori circiter ut 5 ad 4 latiori, antice quam trans basin 

 multo angustiori, longitudinaliter canaliculato, postice 



