BY THE REV. T. BLACKBURN. 187 



Characterised by its evenly convex prothorax (not more gibbous 

 in the middle than elsewhere), with well defined rather sharp hind 

 angles, which are slightly directed backward, and the strong sparse 

 puncturation of its upper surface (especially the elytra), which on 

 the prothorax is very much and on the elytra quite evidently 

 stronger and less close than in H. cinctus^ Blackb., — probably the 

 nearest ally of this species. 



N. S. Wales ; Blue Mountains. 



SiLis AUSTRALis, Blackb. 



Having had occasion recently to look at this insect, I was much 

 startled to find that I committed an unpardonable blunder in 

 describing it. It has nothing to do with Silis but is an (Edemerid. 

 How I could have overlooked its heteromerous tarsi I am unable 

 to conjecture ; I can only adopt an expression used by Mr. Pascoe 

 under similar circumstances and say that it must have been in 

 "a moment of aberration." The insect certainly has an extremely 

 Sills-like facies. It does not appear to have been described in the 

 (Edemeridce^ and seems to be congeneric with some at least of the 

 species that are referred to the genus Ananca^ but unfortunately 

 there is a species among them bearing the same name (australis), 

 so that it will be necessary to give a new name to the subject of 

 this note. I propose the name Boisduvali for it. A. australis, 

 Boisd., appears to be not unlike it (judging from the brief des- 

 cription of seven words), but to differ in having its legs entirely 

 of a fulvous colour. Ananca 7'iificoUis, Macl., also resembles it, 

 but ditTers inter alia by the considerably less fine puncturation of 

 its elytra, by its testaceous meso- and meta-sterna, and by its 

 femora being of a bright testaceous colour, with only the extreme 

 apices infuscate. 



(EDEMERID^. 



Ananca Boisduvali, sp.nov. 

 Vide note on Silis australis (siqjra). 



