BY THE REV. T. BLACKBURN. 91 



A very distinct species ; the discal vittse of the elytra are 

 narrow, scarcely extend into the apical ^ of the elytra, and are 

 much narrowed behind. The insect has the general appearance 

 of an Amhlytelus. The base of the prothorax is very charac- 

 teristic ; immediately within the hind angle on either side it is 

 emarginate and the inner apex of the emargination joins the 

 middle piece of the base in a distinct angle. 



Victoria ; Princetown ; taken by Mr. T. G. Sloane. 

 N.B. — Mr. Sloane's collection contains an example, also from 

 Victoria (Yarragon), which I hesitate to regard as a species 

 distinct from D. vicinus, although it differs in several respects 

 from the type ; it is larger (long. 6 lines), the base of the elytra is 

 not testaceous except where the vittse and lateral margins meet it, 

 the vittjB are longer, reaching nearly to the apex, the reflexed 

 margin of the prothorax seems a little wider, and the elytra are 

 a little more strongly punctulate-striate. 



The following tabulation will assist in identifying the species of 

 this genus. 



A. Elytra devoid of well defined pale discal 

 markings. 

 B. Small species — long. 4 lines or less. 

 C. Prothorax evidently wider at the 

 baFe than in the middle. 

 D. Frontal sulci of head very elon- 

 gate and deep lividus, ap.nov. 



DD. Frontal sulci of head normal ... sloanei, sp.nov. 

 CC. Prothorax not wider at the base 



than in the middle , hipunctatus, sp.nov. 



BE. Of large size — long. 5 lines or more amplipennis, Macl. 

 AA. Elytra with well defined pale discal 

 markings. 

 B Middle of base of prothorax reaching 

 hindward much further than the 



hind angles vicinus, Sloane. 



BB. Base of prothorax very little promi- 

 nent hindward in the middle bicolor, sp.nov. 



