2(iO EuMace, W. Ferguwn : Notes on Aruycte rides. 



iilKnit huiufral anglo (but still smaller than the spines of the other 

 i-o\vs). spinose, l)ecoming smaller posteriorly and passing into mere 

 granules. Sides with the upper three interstices distinctly granu- 

 late. Beneath subglabrous, with small, setigerous punctures; fifth 

 segment more strongly convex than the others. Legs simple, tibiae 

 not notched, tarsi spongiose beneath. 



2 Of more ovate form; with elytral tubercles smaller, those of the 

 first row more numerous, and the anterior ones reduced to mere 

 granules; apical ventral segment with a strongly raised rounded 

 prominence, highest in middle, but occupying nearly the whole 

 segment. 



Dimensions. — <? 15 x 5.5 mm. ; 2 16x7 nan. 



Specimens of this species, taken by Mr. T. G. Sloane at Portland, 

 Victoria, in 1887. have been long in my collection, and lately Mr. 

 J. E. Dixon has forwarded me a long series (48) from the same 

 locality. Though variable to a slight extent in size, there is little 

 other difference to be detected in the series. The crest over the 

 eye at first sight appears single, but I believe it is really composed 

 of two conjoined tubercles; the species being therefore related to Ac. 

 Adelaidae and Ac. approximatxis. 



It differs from all of this group in the relatively narrower pro- 

 thorax, and in the more numerous and more closely set elytral 

 tubercles. 



Type in author's collection. 



