170 



antenna, and there is generally another on the foreliead ; or 

 the latter may be lengthened into a short carina ; occasionally 

 it is completely absent, but its absence appears to be individual 

 rather than specific. 



Under the genus Chapuis described the femora as being 

 slightly swollen, but in an enlarged figure (^i' of the hind leg 

 of ptdchella (the typical species of the genus) the femur is 

 shown as having a fairly large subapical tooth. Lefevre also 

 described the femora, as moderately incrassated, and made no 

 mention of a tooth. I have seen no SDecies with dentate 

 femora, but must presume (on account of the figure) that 

 'piDlchella has such, and consequently that it is unrepresented 

 in the Museum, but all the other known species are there 

 represented. 



The antennae are usuallv long and thin, but on the 

 females are usually much (or, at any rate, distinctly) shorter 

 than on the male, and on some species they differ sexually in 

 w^idth ; but the relative lengths of the joints are seldom of use 

 in distinguishing allied species. The sides of the prothorax 

 and its proportions in comparison with the elytra are also of 

 but little use. 



The sexual differences are frequently very pronounced in 

 colour, and the male has usually distinctive characters on the 

 abdomen; on the male the basal joint of the twg or four front 

 tarsi is often slightly larger than on the female, but it is 

 seldom conspicuously much larger, as in so many other genera 

 of the subfamily. 



The following table is of the new species only : — 



A. Prothorax not impressed across middle. 



n. Prothoracic pubescence conspicuously parted 



in middle medlana 



aa. Prothoracic pubescence not so parted. 

 b. Elytral pubescence entirely very short 

 and more or less depressed, 

 c. Elytra much more conspicuously nar- 

 rowed posteriorly than usual in 



genns ii-'ihiinli 



cc. Elytra normally narrowed posteriorly. 



d. Size large Jongu 



dd. Size very small queenslandica 



66. Elytral pubescence not entirely short 

 nnd depressed. 

 e. Prothoracic punctures large and sharply 



defined in front apic'icolVis 



ee. Prothoracic punctures smaller and 

 crowded throughout. 



/. Size very small dumJ>rcUi 



ff. Size considerably larger. 



(61) PI. cxix., fig. 2a. 



