12(5 i-lime, 



!). Abdomen pale rosy-testaceous, like pink coral, not metallic, hardly shining ; thorax 



wholly green or blue roseiim. 



Abdomen very brilliant, metallic, colour deep ; thorax not wholly green or 

 blue— 10. 



10. Thorax somewhat smooth; abdomen with long scattered hairs at apex .. 



integrum. 



Thorax coarsely punctured; abdomen merely pubescent at apex ardens. 



11. No part of thorax fiery-red or golden nobi/e, $. 



Pro- and mesothorax fiery-red or golden nohile, $. 



12. Whole insect dark blue or green ; apex of abdomen distinctly but very obtusely 



tridentate cyanea. 



At least one abdominal segment wholly, and another partly, red or golden above ; 

 apex not tridentate — 13. 



13. Thorax with, at least, some definite dorsal space entirely golden or fiery-red — 14. 

 Thorax with, at most, golden touches here and tliere, general effect dark blue or 



green — 16. 



14. Scutellum and prothorax fiery-red ; apical segment of abdomen blue, or blue 



and green — 15. 

 Scutellum blue ; prothorax only touched with gold at apex ; last segment of 

 abdomen red, with a black or greenish apical margin ; apex distinctly but 

 obtusely quadridentate succincta. 



15. Large, finely and evenly punctured ; prothorax and second abdominal segment 



long ; pubescence very short ; apex of abdomen very indistinctly angled at 



sides, almost rounded viridula, var. ornata. 



Smaller, much more coarsely and irregularly punctured ; prothorax and second 

 abdominal segment shorter ; pubescence long and conspicuous ; apex of 

 abdomen distinctly but obtusely quadridentate ,. viridula. 



16. Basal segment of abdomen deep blue in both sexes, a large patch of the same 



colour extending over the second segment in the $ , abdomen strongly 



quadridentate fuJgida. 



Whole abdomen (above) fiery-red or golden — 17. 



17. Apex of abdomen distinctly and often sharply quadridentate — 20. 

 Apex of abdomen rounded, without teeth — 18. 



18. Pubescence very short and inconspicuous ; second abdominal segment with ex- 



tremely close, fine and uniform punctures ; small species neglecta. 



Pubescence long and abundant ; second segment less closely and finely punctured, 

 punctures of two distinct sizes intermingled ; species larger— 19. 



19. Punctures of first abdominal segment conspicuously larger and coarser than 



those of second, general effect of abdomen somewhat opaque and rugulose ; 



a large insect with long, pale pubescence pustulosa. 



Punctures of first and second segments not strikingly dissimilar ; abdominal 

 surface rather brighter than in pustulosa ; insects rather smaller than that 

 species. 



Hairs on apical segment, at least in part, black ; fossulets nearly obsolete... 



kirsuia. 

 Hairs on apical segment white; fossulets distinct osmicE. 



20. Abdomen (beneath), and legs, with fiery-red reflections; whole insect more 



densely pubescent ; puncturation finer and more even ; metathoracic spines 

 moi-e curved and sharper Ruddii. 



