Coleoptrrtf of Ki inj Idand. 205 



tirely pale, sometimes infusca'ted and sometimes almost entirely 

 black. Tlie prothorax usually has a larj^e infuscate blotch in the 

 middle, the blotch occasionally occupying the entire surface ex- 

 cept for a ver\' narrow border, whilst sometimes a very faint 

 stain only can be traced. The elytral markinp^s are very 

 variable and not always clearly defined ; the suture appears to be 

 alwjws narmwly infuscated throuo-hout, at about its basal third 

 there is a blackish blotch (in some specimens this blotch is 

 heart-shaped, in others it is ccmnected with discal markiniis, 

 whilst in a common form it is represented by a rounded spot 

 on each side close to. Init not of, the suture), and at about its 

 apical third it is a.gain, but less strongly dilated : in uumy 

 specimens, however, the subapical dilatatifm is entirely absent. 

 On the disc there is usually a sinuous line extending from near 

 the base to one-third from the a-pex, where it becomes trans- 

 versely dilated and termin.Tjtes ; sometimes after proceeding a 

 shr»i-t distance it bifurcates, but the two arms in such cases 

 become conjoined at one-third from the apex. The meso and 

 metasternum are always more or less dark, but the abdomen 

 varies from entirely pale to entii'ely infuscate. 



On one specimen the elytral markings consist of a conspicuous 

 zig-zag fascia at the basal third (extending across the suture but 

 not to the margins), and a. feebly infuscated spot at about one- 

 third from the apex. On several there is a feebly infuscated 

 spot on each side of the suture at its basal third, and a very 

 feeble oblique stripe between this and the margin. Usually, 

 however, the sinuous line can be traced in parts. The specimens 

 from the island, a.s a rule, are less distinctly marked than tho^e 

 fnim Tasmania. 



In general appearance somewhat like alphabeticus, but smaller, 

 comparatively wider, with smaller punctures' and different mai'k- 

 ings on eh-tra. In size and shape it is close to occidentalis, 

 but the elytral punctures are much more distinct than in that 

 species. 



"270. Rhizobiiis hiackburni, n. sp. 



Black or bhickish, head (infuscated posteriorly) front and sides 

 of prothorax, sides a,nd apex of elytra, abdomen (the base in- 

 fuscated) and appendages more or less reddish. Clothed with 

 short pale yellowish pubescence interspersed with subsetose but 

 similarly coloured pubescence. 



