123 



D. Elytra with a conspicuous (but not sharpl}'^ 



limited) depression a little behind base . duhium, Blackb. 

 DD. Elytra without the sub-basal depression. 



R. The seventh elytral stria strongly defined propriam, Blackb. 



EE. The seventh elytral stria subobsolete ... Ilobar ti, Bldkckh, 



BB. The six inner strife (only) of the elytra present errans, Blackb. 

 BBB. The five inner striae (only) of the elytra 



present ... ... ... ... v.-attsense., Blackb. 



B. Hoharti, sp. nov. Subovatum ; minus convexum ; sat niti- 

 dum ; nigricans, antennarum basi mandibulis pedibusque 

 rufescentibus ; capite utrinque profunde sat recte sulcatum ; 

 prothorace quam longiori circiter sesquilatiori, antice quam 

 postice multo latiori, longitudinaliter canaliculate, utrinque 

 ad basin minus profunde impresso, lateribus antice fortiter 

 rotundatis postice breviter rectis anguste marginatis, angulis 

 posticis minutis sat rectis, latitudine majori ante medium 

 sita, parte basali transversim depressa, basi fere recta \ 

 elytris fortiter punctulato-striatis (stria 6'' quam prsecedentes 

 minus fortiter impressa, 7" fere nulla, S'' margin! fere 

 contigua), interstitiis manifeste convexis, striola recurva 

 baud plane carenti ; tibiis anticis ad apicem latis, supra vix 

 manifeste oblique truncatis. Long., li 1.; lat., \ 1. 



This is a species that illustrates the diflSculty of distinguishing 

 Tachys and Bemhidium. It has an irregular sulcus near the 

 apex of the elytra which is somewhat of the nature of a recurved 

 striole and the extreme apical part of the upper outline of its 

 front tibiae seems from a certain point of view obliquely truncate, 

 althougli it would be equally correct to say that the apical outline 

 of the tibiae {i.e., the line joining the upper and lower outline of 

 the tibiie) is a curve, I do not think that Mr. Sloane would 

 place the insect in Tachys as having the upper outline of the 

 tibiie genuinely obliquely truncate at the apex. It is not very 

 near any other Bembidium known to me. The seventh stria of 

 its elytra is extremely slight but is distinctly traceable under a 

 lens as a row of line punctures, so that this species must be 

 ranked among those having fully striate elytra. The two discal 

 punctures of the third elytral interstice are small and incon- 

 spicuous, the sub-apical puncture more distinct. 



Tasmania (near Hobart). 



B. wattsense, sp. nov. Ovale ; subelongatum ; sat convexum ; 

 nitidum ; nigrum, antennarum basi mandibulis tibiis tarsis- 

 que rufescentibus ; capite utrinque profunde sat recte sul- 

 catum ; prothorace quam longiori baud plane sesquilatiori, 

 antice quam postice multo latiori, longitudinaliter canalicu- 

 lato, utrinque ad basin sat profunde impresso, lateribus 

 antice fortiter rotundatis postice rectis anguste marginatis, 

 angulis posticis rectis, latitudine majori ante medium sita, 



