532 



Table of Species. 



1. Thorax red (deep reddish brown in 



badia) 2. 



Thorax black (brownish grey in 

 bicolor, dark brown in tennis) .... 9. 



2. Entire abdomen, or at least the 



ground-colour, black (bluish grey 



bands in huinberti) 3. 



Abdomen mainly reddish yellow, 

 orange or ferruginous (reddish 

 brown in badia} 8. 



3. The 2nd posterior cell closed on the 



wing margin ctenophoroidcs, Edw., p. 533, 



The 2nd posterior cell always open . 4. 



4. Length 15-20 millim ." 5. 



Length 7-10 millim 7. 



5. Thorax unstriped 6. 



Thorax with three blackish brown 



stripes scutellata, Edw., p. 534. 



6. No clear spot in 1st basal cell .... i-ufithorax, sp. n., p. 534. 

 A clear spot in this cell fenestruta, Brun., p. 535. 



7. Wings pale brown, with a broad 



brown median cross-band humberti, Os. Sac., p. 536. 



Wings subhyaline, with a median 

 cross-band of bluish opalescent spots, meleagris, Os. Sac., p. 537. 



8. Wings greyish with opalescent spots . pachyrrhina, Os. Sac., p. 537. 

 Wings dark brown badia, Brun., p. 538. 



9. Abdomen mainly blackish or brown- 



ish, at all events the ground-colour 



never pale * 10. 



Abdomen mainly yellowish or testa- 

 ceous (half yellowish and half 

 blackish in bicolor and semilimpida ; 

 two or three basal segments yellow 

 in albonotata) * 19. 



10. Abdomen without bands 11. 



Abdomen mainly black, but with 



pale bands (shining plumbeous in 

 plumbicincta &ndjiavipes) 15. 



11. First two abdominal segments 



orange-yellow rufibasis, Brun., p. 538. 



Abdomen wholly black or blackish . 12. 



12. Length 28-30 niillim tennis, sp. n., p. 539 



Length 10-16 millim 13. 



13. Legs mainly brownish yellow .... areenii, Brun., p. 539. 

 Legs mainly blackish 14. 



14. Legs black ; antennae wholly black . atemma, sp. n., p. 540. 

 Legs bluish black ; antennae with an 



ochreous tinge fusca, Edw., p. 541. 



15. Wings clear crystallate crystalloptera, Os. Sac., p.'541. 



Wings blackish or brownish 16. 



10. Five posterior cells plumbicincia, Brun., p. 541. 



Four posterior cells 17. 



17. Length 25-28 millim : elongatissima, sp. n., p. 542. 



Length 20 millim 18. 



