436 CHRYSfDID.T:. 



Abdomen with more or less of cupreous or 



golden effulgence. 

 a'. Apical margin of abdomen sinuate. 



d^. Pronotum and scutellum cupreous 



golden C. hayadera, p. 444. 



b'-. Pronotum and scutellum dark blue . . C chavauce, p. 44o. 

 v. Apical margin of abdomen not sinuate. 

 «-. Punctures on head and thorax very tine, 

 serried, coi-iaceous. 

 «^. A distinct carina behind anterior 



ocellus C. ignifuscia, p. 445. 



ly'. No carina behind anterior ocellus . . C. ahncnsis, p.j446. 

 b-. Punctures on head and thorax not tine, 

 serried, or coriaceous. 

 a^. Sides only of 1st and apical margin 

 of 2nd abdominal segment Avith a 

 light golden effulgence ; length [p. 447. 



5-.J mm C. disshnilanda, 



b''. Whole of 1st (except extreme base 

 and narrow medial line) and apical 

 two-thirds of i^ud abdominal seg- 

 ment cupreous golden ; length 6-5- 

 9 mm C'.jala/a. p. 447. 



B. Apical margin of abdomen Avith 2 teeth. 



a. The teeth medial, close together C. eUzabeth<e, p. 449. 



b. The teeth not medial, not close together, 



placed at posterior lateral angles of abdomen. C.furivsa, p. 448. 



C. Apical margin of abdomen Avith 3 teeth. 



a. Apical margin of abdomen more or less 



transA-erse, lateral tooth on each side placed 



at the posterior lateral angles. 



«'. Apical area of 3rd abdominal segment 



broAvn, translucent, chitinous ; length 



12 mm C. nvgutrix, p. 450. 



b' . Apical area of 3rd abdominal segment 

 green, not translucent nor chitinous ; 

 length under 8 mm. 

 «-. Apical margin of abdomen between 



lateral and medial teeth sinuate .... C. viendiccdis, p. 451, 



b-. Apical margin of abdomen between 



lateral and medial teeth not sinuate, 



straight. 



«■'. Head thick, more than twice as long 



as pronotum ; species very slender 



and small, length 3-5 mm. ...... C. lanka, p. 451. 



b'. Head not so thick, a little longer only 

 than pronotum ; species larger and 

 more robustly built, length over mm. 



o\ Occiput transverse . C. triacantha, p. 453 



b*. Occiput Avidely emavgiuate. 



a'. Second abdominal segment me- 

 dially longitudinally strongly 



cariuate C. migalnms, p. 45 



b' . Second abdominal segment not 



ciiriuate '. C. sciocnsis, p. 454. 



b. Apical margin of abdomen completely 

 rounded, with the three small acute teeth 

 placed in middle C\ paria. p. 455. 



r;'> 



