72 Mr. F. W. Edwards ov the Old-WorU 



18. Thorax and abdomen almost -^-lioUy 



shilling black. (Tropical Africa.) .... nyasicola, Alex. 

 Thorax scarcely or not shining, both it 

 and the abdomen black 19. 



19. Male antennae a little shorter than the 



body ; cross-vein r at base of E2. 



(Ceylon.) yerburyi, sp. u. 



Male antennee three times as long as the 

 body; cross-vein r a little beyond base 

 of K2 20. 



20. Cuia a little beyond base of discal cell. [kana, Mats.). 



(Oriental region.) veHicalis, 'Wied.( = ?;ion'o- 



Cuia exactly at base of discal cell. 



(Africa.) tumidiscajya, Alex. 



21. Abdomen shining black 22. 



Abdomen dull 23. 



22. Wings yellowish at the base. (S. Europe.) *c»H?coififes (Scop.). 

 Wings entirely blackish. (Formosa.) . ." nigrina, Eiedel. 



2.3. Thorax grey with four strongly shining 



black stripes. (Hungary.) *grisea (Riedel). 



Thorax blackish brown with three mode- 

 rately shining black stripes 24. 



24. Stigma absent ; legs with strong bluish- 



metallic reflections. (Ceylon.) fusca, Edw. 



Stigma distinct; legs with faint bluish 

 reflections. (Japan.) 7iipponensis, Wex. 



25. Wings with a conspicuous dark blotch at 



base of Rs, and other dark markings on 



a pale "•^'nund 26. 



Wings with a blackish ground-colour, 

 with or without pale markings, or 

 lighter with a stigma only 27. 



26. Costal cell dark; head and thorax 



shining blue-black. (India.) tripunctijjemiis, Brun. 



Costal cell yellowish ; head and thorax 

 dull greyish. (Japan.) longifurcci , Alex. 



27. Wings moderately infuscated, without 



pale markings; stigma present, though 

 sometimes faint ; cross-vein r about its 

 own length distant from tip of Ri . . . . 28. 

 Wings darker, often with distinct mark- 

 ings ; stigma absent ; cross-vein r more 

 than its own length distant from tip of 

 Ri (usually much more) 34. 



28. Very large species ; tliorax densely hairy ; 



frontal tubercle well developed. (Japan.) stricMancU. sp. u. 

 Medium-sized or small species ; thorax 

 practically bare ; frontal tubercle feebly 

 developed 29. 



29. Four posterior cells ; sides of mesonotum 



with velvet-black spots 30. 



Five posterior cells ; sides of mesonotum 



without velvet-black spots 31. 



30. Thorax black. (India.) rvfiventris, Brun. 



Thorax mainly reddish. (Sumatra.) . . pcenuhita, Eud. 



31. Cell 3Ii more than twice as long as its 



petiole; discal cell not much longer 



