90 



sat continuo), antice parum angustato, lateribus bisinuatis 

 in medio dente acuto armatis, angulis dentiformibus ; 

 elytris subfortiter subseriatim rugulose punctulatis et sat 

 fortiter bicostatis ; corpore subtus albo-piloso ; tarsis posticis 

 gracilibus. Long., 2f 1.; lat., li 1. 

 Fern, latet. 



In Sir W. Macleay's classification of the Diphucephalce this 

 species falls into the second division of subsection B in Section 

 II. The close fine punctu ration of its prothorax separates it at 

 once from all the species that have been attributed to that 

 aggregate except D. prasina, Macl. and D. laticollis, Lea. Its 

 remarkably elongate prothorax but little narrowed in front 

 separates it readily from those two insects (presuming from the 

 name that D. laticollis has a strongly transverse prothorax, the 

 character is not mentioned in the description). It considerably 

 resembles several species in others of Sir W. Macleay's aggregates, 

 e.g., purpureitarsis, Macl. and pygmcea, Waterh, but these have 

 inter alia the prothoracic furrows quite different. D. 

 purpureitarsis, Mac]., has similar prothoracic sculpture (i.e. fine 

 close puncturation and a network of very fine scarcely elevated 

 lines) though with the reticulation less marked. The following 

 characters in combination are sufficient, I think, to distinguish 

 this from all other described Diphucephalce — prothorax very 

 little wider than long and not much narrowed in front, with its 

 longitudinal sulcus simple and its transverse sulci reaching the 

 middle of the segment. The hind tarsi in this species are much 

 more slender and elongate than in any other Diphucephalce known 

 to me, and the basal two joints are of equal length inter se. The 

 structure of the hind tarsi furnishes very important characters for 

 the distinction of species in this genus and seems to have been 

 unaccountably overlooked hitherto by describers. 



Victoria ; sent by Mr. J. A. Kershaw. 



PACHYGASTRA. 



P. Victoria, sp. nov. Ovata ; subnitida; nigra, pedibus picesc- 

 entibus, antennis (harum clava triarticulata) palpisque sub- 

 ferrugineis ; subtus et in pedibus ferrugineo-hirsuta ; capite 

 crebre aspere (clypeo hoc antice rotundato margine recurvo, 

 minus crebre haud aspere) punctulato ; prothorace vix 

 canaliculato, fortiter trans verso, antice fortiter angustato, 

 ut caput punctulato, lateribus fortiter dilatato-rotundatis ; 

 scutello punctulato ; elytris fortiter vix geminatim punctu- 

 lato-striatis, interstitiis sparsim punctulatis ; pygidio crebre 

 subtiliter punctulatis ; tibiis anticis late dilatatis, extus obtuse 

 bidentatis. 



