168 



that the prothorax of the female is " subnitidus." The sexual 

 dififerences in the antennal club seem to be very slight ; I spec- 

 ified what I took to be such a distinction in describing 

 C. C?) {Antkrenus) Flindersi { = con fer turn, Reitt.), but really 

 these differences are so small that they are hardly worth specifying 

 especially as the antennae are not easily examined satisfactorily 

 unless they have been placed in position immediately after the 

 death of the specimen. It might be supposed that among the 

 Cryptorhopala which I have called the tirsfc section of the genus 

 those with the club of their antennae small were likely to be the 

 females of those having large antennal clubs, but there are too 

 many other differences among those before me for that to be the 

 case, unless I have only one sex of each species ; i.e., males of 

 some species and females of others — which is not likely. 



As the described species of Cryptorhopalum are now somewhat 

 numerous a tabular statement of their distinctive characters 

 seems to be called for. In providing it T have divided the species 

 into two sections — the first containing species that seem to be 

 typical members of the genus — the second containing the species 

 referred to above as having antenn?e and sternal cavities like 

 those of Anthremis. 



Ic should be noted that abraded specimens are scarcely capable 

 of being identified confidently unless in the case of a few species 

 with well marked elybral pattern of colours. I have before me 

 specimens from W. Australia (at least two species) and from 

 Victoria which on account of their being more or less abraded 

 I have not ventured to describe. 



Tabulation op Species of Cryptorhopalum. 



Section I. — True Crytorhopala, with two-jointed antennal 



club. 



A. Antennal club large and circular. 



B. Elytra bicolorous, independently of the pubescence. 

 C. Elj'tra traversed by a zone of blackish pilosity. 

 D. Puncturation of elytra crowded and 



asperate ... ... ... ivoodvilhnse, Blackb. 



DD. Puncturation of elytra notably 



sparser and smoother ... •... ausbalicum,'S{a.6kh. 



CC. Elytral pilosity entirely of pale colour Eucalypti, Blackb. 

 BB. Elytra unicolorous, independently of the 



pubescence ... ... ... quornense, Blackb. 



AA. Anteuual club much smaller, and of oval 

 or piriform shape. 

 B. Puncturation of elytra considerably less 



close than in the following species ... Casuarina', Blackb. 

 BB. Puncturation of elytra much closer. 

 C. Puncturation of disc of pronotum 

 scarcely less close and strong than of 

 elytra ... ... ... ... nealense, Blackb. 



CO. Puncturation of disc of pronotum not 

 at all as in C= 



