195 



o£ the elytron, and then runs (close to the suture) to the apex. 

 The other costae are straight, all commencing on the base o£ 

 the elytron. ; the second quite reaches the apex, the other two 

 not quite. On the first interval between the costse there is a 

 red spot near the apex, on the second a red spot a little further 

 from the apex and another somewhat in front of the middle, 

 on the third a red spot just behind the middle and another 

 near the base. 



In respect of sculpture and puncturation this insect closely 

 resembles the European D. crenata, Eab., but is much narrower 

 a,nd more elongate. 



I bave a single specimen from Roseworthy, and also one 

 from Port Lincoln, which was taken under tbe bark of a 

 JEucali/ptus. The latter specimen has all the sculpture better 

 defined than the former, the anterior red mark on the third 

 interstice of the elytra scarcely traceable, and the lateral mar- 

 gins of the thorax obsoletely crenulate, but I have no doubt 

 ■of its specific identity with the Eoseworthy example. I have 

 also seen the species among some insects submitted to me by 

 Mr. Eothe. 



D. lineatocollis, sp. nov. Sat depressa ; elongata ; nigra vel 

 piceo-nigra; capite antice (nonnullis exemplis), antennis, 

 palpis, pedibusque, rufis ; prothoracis lateribus leviter ex- 

 planatis, vix distincte serrulatis, antice minus fortiter 

 productis ; elytris fortiter costatis, interstitiis crasse trans- 

 versim biseriatim punctatis. Long, li-lj 1. Lat. -|-^ 1. 

 Closely allied to the preceding ; I observe very little differ- 

 ence, except in the following characters : — The head is more 

 roughly punctured ; the elytra are devoid of red markings and 

 have the costse more sharply defined ; and the punctures in the 

 two rows in each elytral interstice are transverse, running 

 into each other and scarcely leaving any distinct intermediate 

 space between them. The thorax also is very differently 

 sculptured on the surface ; on either side a strong longi- 

 tudinal costa springs from the base a little nearer to the 

 middle than half way between the middle and the posterior 

 angle and proceeds nearly parallel to the lateral margin more 

 than half way to the apical margin when it turns at an angle 

 iind runs obliquely towards the centre line, but before reaching 

 it becomes parallel to the margin again and then turns out- 

 ward towards the lateral margin and runs in an irregular slight 

 curve back to the base which it reaches at a point rather nearer 

 to the lateral margin than to the point where the inner costa 

 takes its rise. 



I have taken this insect occasionally both in the Port Lin- 

 coln district and also near Adelaide. 



