M. squamiventris. 

 Pseudoclithria fossor. 

 P. maura. 

 Tapino schema lacunosa. 



Black species, with described colour varieties: — 



Ablacopus ater. 

 Cacochroa gymnopleura. 

 Diaphonia caroli. 

 Pseudoclithria ruficornis. 



Normally not entirely black species, but with varieties 

 having at least the entire upper-surface black: — 



Cacochroa decorticata. 

 C. variabilis. 

 Chlorobapta frontalis. 

 Diaphonia satelles. 

 I). xanthopyga. 

 Lomaptera hackeri. 

 Micro pee cila cincta. 

 Microvalgus vagans. 

 Pseudoclithria hirticeps. 

 Trichaulax philipsii. 



The Australian Cttonides are readily divisable into three 

 main groups : — 



1. Prothorax with a large medio-basal lobe covering, or 

 almost covering, the scutellum. Lomaptera and subgenera 

 of same.* 7 ) 



2. Prothorax without such a lobe, but base more or less 

 distinctly trisinuate. (8 ) Mesosternum with a produced process 

 of variable shape. All genera, except in 1 and 3/ 9 ) 



3. Prothorax with base rounded. Mesosternal process 

 transverse, not produced. Size very small. Microvalgus. 



Lomaptera, Gory et Percheron (including Lamapteroides 

 and Ischiopsopha). 

 Lomaptera, and the other genera that have been proposed 

 at its expense, are readily distinguished from all other Aus- 

 tralian Cetonides by the median prothoracic lobe being pro- 

 duced backwards so as to almost or entirely conceal the 



(7) Several genera, not all Australian, have been proposed at 

 the expense of Lomaptera, and usually upon very slight grounds. 



(8) Except in Glycyphana. 



(9) The genera of this section are, as a rule, so ill-defined and 

 lacking in stability, various combinations of characters being 

 looked on as important by some authors and as unimportant by 

 others, that it appears undesirable to use the same specific name 

 in it twice. 



