126 



the shoulders being much less prominent ; (c) in respcet of the 

 head by the presence of a distinct (though not strongly defined) 

 longitudinal impression. 



A much smaller specimen (Long., 3| 1.) of a ferruginous red 

 color which I took near the summit of one of the higher Vic- 

 torian mountains does not seem to differ much from this species, 



the hind angles of its prothorax, however, being a little more 



strongly obtuse and Jess strongly dentiform at extreme apex and 

 the third interstice of its elytra being non-cariniform for a con- 

 siderably greater proportion of its length. It is probably a valid 

 species, but more specimens of both forms ought to be examined 

 before this Victorian insect is described as distinct. 



Tasmania. 



D. popularis, sp. nov. Sat elongatus ; modice angustus ; minus 

 nitidus ; nigro-piceus, antennis pedibus et corpore subtus 

 nonnihil rufescentibus ; capite longitudinaliter leviter 

 impresso, crebre subfortiter punctulato ; prothorace quam 

 latiori ut 8 ad 7 longiori, supra crebre sat fortiter (ut 

 D. fossi, Newm.) punctulato, profunde canaliculato (canali 

 basin fere apicem nuUo modo attingenti, paullo ante medium 

 interrupto), ad quasi-apicem quam ad medium vix angustiori 

 lateribus a quasi apice ad medium parum arcuatis hinc ad 

 basin modice sinuatis, angulis quasi-anticis bene determin- 

 atis obtusis posticis sat obtusis ad apicem summum vix 

 dentiformibus, carinse lateralis apice a segmenti margine 

 antico sat late (quam oculi diametro paullo minus late) 

 distanti, parte basali utrinque late subobsolete impressa ; 

 elytris punctulato-striatis, interstitiis alternis (S*" in parte 

 mediana fere piano excepto) cariniformibus alternis (4° 6° que 

 obsolete convexis exceptis) fere planis (omnibus minute 

 punctulatis) humeris vix prominentibus. Long., 4 1.; 

 lat. 1 1. (vix). 



I do not find any very salient single character in this species 

 to separate it from its congeners. It is nearest, I think, to the 

 Adelaide insect which I have no doubt is viduatus, Pasc. and 

 which is notable for the almost flat surface of the middle part of 

 the third interstice of its elytra. The present species agrees 

 with viduatus in that respect (and most others) but differs widely 

 in the form of its prothorax, the lateral margin of which reaches 

 evidently nearer to the true front margin of the segment, and 

 the quasi-front margin of which resembles that of Ericksioni, 

 Newm. but with the quasi-front angles still more pronounced and 

 the distinction between the true and the apparent front margin 

 much less observable from above, — in fact (as is the case also in 

 D. tJioi^acicus) scarcely discoverable except when looked at from 



