10 



co-type given me by Mr. Blackburn has the elytra substriate, 

 with distinctly convex intervals. 



C. amethystinus, Fab. Mr. Blair says that the type in 

 the Banks collection has black femora, but other specimens 

 labelled by Hope have red legs; but this may be the effect 

 of age. Certainly a specimen sent with a label ''Pasc. 

 coll." is ticketed ''amethystinus, Fab.," while another very 

 ancient specimen bears an old label "Erotylus amethystinus, 

 Fab.," and both of these agree with specimens identified by 

 myself from North Queensland as amethystinus. Fab., and 

 is the same species Blackburn considered as Fabricius' species. 

 It has red femora, but darker tibiae, and a blue pronotum. 

 On the other hand, the specimen sent by Mr. Blair as agree- 

 ing "very nearly with the type" has a black pronotum, and 

 is evidently G. IcevicoUis, Bless. = coelestis, Vsise. = cyanipennis^ 

 Hope, which is quite inconsistent with Fabricius' scanty 

 description. There is also a difficulty as to the tarsal clothing. 

 Blackburn places it amongst those with black tarsal vestiture. 

 I find, in examining many specimens, that, like C. imperialis , 

 Blkb., it has both ?'ed and black setae on its tarsi, the front 

 and intermediate being generally rufo-setose, while the pos- 

 terior tarsi are nigro-setose. I find I have placed it amongst 

 the ''flavo-setose" group in my tabulation. If placed under 

 the ''nigro-setose" it would stand next to michaelseni, Geb., 

 from which it is easily separated by its almost impunctata 

 elytral intervals. 



Synonymy. 



1. G. vigilans, Blkb. =(7. semiticus, Pasc. = (7. triangu- 



laris, Haag. = C. cupricollis, Hope ==(7. smaragdulus, 

 Fab. 



2. G. cu'pripennis , Germ, (nee Hope) — (7. simtus, Blkb. 



(var.) = (7. hoiuitti, Pasc— (7. ajfinis, Bless. = (7. 

 columhinus, Boisd. ( ?) 



3. G. laticollis, Blkb. =(7. colossus, Blkb. (var.). 



4. G. confluens, Blkb. =(7. ohsoletus, Macl. = (7. fastu- 



osus, Germ. 



5. G. venereus, Gm.el.=G. cupreus, Fab. 



6. G. froggatti, Blkb. = (?)(7. semiseriatus , Blkb. (var.) 



= G. cupripennis, Hope. 



7. G. hunterensis, Blkb. =(7. opacicollis, Macl. 



8. G. hlackhurni, Geb. =(7. interioris, Blkb. 



9. G. bicolor, Geb. =(7. viridicollis , W. S. Macl. 



10. G. arthuri, Blkb. =(7. intermedius, Blkb. 



11. (7. m^eyricki, Blkb. = C. iridiventris, Blkb. (var.). 



12. G. jucundus, Blkb. = (7. picipes, Macl. 



13. G. rufipes, Macl. =(7. nigritarsis, Pasc. 



