H2 



•concern us, since the second aggregate of that group has not been 

 reported as Australian. Beyond this I have not strictly followed 

 Lacordaire, as his principal (so far as concerns the Australian 

 Anthribidce) subdivisions of the two main aggregates of the 

 Pleuroceres, — based on the width of the rostrum at its base and 

 the more or less cylindric form of the body, — seem to shade off 

 into each other in a somewhat perplexing manner. [Lacordaire, 

 e.g., tabulates the true Anthribides as of oblong or oval, — con- 

 trasted with cylindric, — form, but in the detailed diagnoses of 

 their genera calls some of them " almost cylindric," " subcylin- 

 dric," and even unreservedly "cylindric."] I have adopted in 

 the place of those characters others which Lacordaire treats as 

 subordinate to them, founded on (a) the relation between the 

 upper and lower edge of the rostral scrobe, in the one case the 

 lower edge protruding outwards further than the upper edge or 

 the upper edge cutting into the lateral margin of the rostrum, so 

 that the scrobe is visible from above ; in the other case the upper 

 edge not cutting into the lateral margin of the rostrum and the 

 lower edge not protruding outwards beyond the upper, and the 

 scrobe consequently being entirely invisible from above (b) the 

 form of the eye. 



Of the Anthribid genera known as Australian I have been able 

 to include in the following tabulation all except Telala, — which 

 is a genus characterised by Mr. Jordan (Ent. Z. Stett, 1895, p. 

 143). I do not think that it is represented among the Anthribidce 

 before me, and as its author does not say whether the rostral 

 scrobes are visible from above I cannot place it in my tabulation 

 without seeing it. It is founded on a species of moderately large 

 size, with spinose elytra. 



Tabulation of the Anthribid genera known to be Australian: — 



A. Antennae inserted on the side of the rostrum. 



B. A transverse carina (independent of the base) on the pronotum. 

 C. Prosternum and mesosternum elevated and 



contiguous ... ... ... ... Bythoprotus. 



CC. Prosternum and mesosternum not as in 

 Bythoprotus. 

 D. Rostral scrobes visible from above, and not 

 basal vertical and sulciform. 

 E. Eyes small and very elongate. 



F. Carina of pronotum strongly arched ... Ancylotropis. 



FF. Carina of pronotum straight ... ... Genethila. 



EE. Eyes not as in the preceding two genera. 



F. Eyes approximate on the forehead ... Litocerus. 



FF. Eyes lateral, and distant from one another. 



G. Carina of pronotum straight ... ... Ethneca. 



GG. Carina of pronotum strongly arched ... Commista. 

 DD. Rostral scrobes not visible from above unless 

 they are basal vertical and sulciform. 

 E. Eyes entire or nearly so. 



