173 



spot on the disc of each elytron is greatly reduced in size 

 (compared with that of the male) or altogether absent, and 

 the white spots on the pygidium are also reduced in size. 

 Such specimens in colour agree well with obscura, but have 

 much more denned punctures. On the male the white cloth- 

 ing on the sides of the prothorax is usually continuous, but is 

 sometimes partly or completely divided in the middle. The 

 elytral spots also vary in size and shape. 



The species was referred by Kraatz to Lyraphora, but 

 was made the type of a new genus ( Camilla ) by Thomson. I 

 cannot regard Schizorrhina neva as more than a slight variety 

 of the species. 



Cacochroa variabilis, Macl. 



PI. x., figs. 79 to 84. 



There are before me numerous specimens that appear to 

 belong to this species ; but they vary considerably in size 

 (14-19 mm.) and colour; and to a certain extent in the elytral 

 punctures ; these being much finer on some specimens than 

 on others. 



Three colour varieties were described by Macleay. But 

 the sculpture and size were apparently alike on all three; or 

 at least there is no indication in the description to the con- 

 trary. Of the supposititious non-variable details in the original 

 description the following may be mentioned : "Femoribus 

 tibiisque posticis subtus villosus," and again, "the inferior 

 margin of the hind thighs and tibiae are clothed with a 

 uniform thick brush of cinereous hair." Of the elytra, "lineis 

 duabus longitudinalibus suturaque subelevatis glabris." The 

 size of the elytral punctures is nowhere mentioned, but on 

 the head and prothorax they were mentioned as finer than 

 on gymnopleura. 



Macleay did not describe one form as typical and the 

 others as varieties, but described the species as being com- 

 posed of three varieties. It would perhaps have been better 

 had he described one form as typical, and the others as 

 varieties, but as he numbered them respectively 1, 2, and 3, 

 it appears desirable with additional varieties to continue his 

 arithmetic. 



Var. 1. — A rather small (14 mm.) male from Rockhamp- 

 ton evidently belongs to this variety. Its hind legs are as 

 described, and its elytral punctures are fairly coarse and in 

 somewhat irregular rows, extending neither to base nor apex. 

 Two females, from Cairns, of the variety, differ in being larger, 

 with much finer and scarcely-seriate elytral punctures, and 

 only the hind tibiae densely fringed, although about the base 

 of each of the four front femora there is a fairly conspicuous 

 fringe. 



