456 Mr. G. Meade-Waldo on 



■without any lamellar process at 

 apex; terminal joint of flagellum 

 normal. Length 11 mm rubella, Smith =j9M/c/«n- 



tarsis, Cam. (Gambia, t., Lake Nyasa, Port. E. 



Afr. {Neave), (S 2'i Natal {Cregoe); Transvaal 



(t, ol 2^ulchritarsis).) 



7. (6) Wings light fuscous, darker towards 



apex ; hind tibiae with a lamellar 

 process on the inner side ; terminal 

 liagellar joint spatulate, basally con- 

 stricted. Length 13 mm stremta, Cam. (Trans- 

 vaal, t., Port. E. Afr., and Nyasaland {Neave) ; 

 Matabeleland {Dr. H. Swale).) 



8. (3) Tegument of abdomen mostly dark ; 



hind legs simple, not swollen, 



9. (10) Wings hyaline, the tip very mark- 



edly fuscous. Length 10 mm nubecula, Smith. (Si- 

 erra Leone, t., Uganda {Gowdey, W. P. Lowe 

 Neave), $ $ .) 



10. (9) Wings unicolorous, hyaline or sub- 



hyaline. 



11. (12) Larger : length 12 mm. Apical seg- 



ment with two small teeth testacea (Smith). 



12. (11) Smaller : about 7 mm. No apical [(** Africa," t.) 



teeth. 



13. (14) Comparatively stout species ; the ab- 



domen with tegumentary fasciae ; 



scutellum with two blunt tubercles ; 



frontal pubescence whitish rufitarsis, Smith. (An- 

 gola, t., J; Nyasaland {Neave), <S $; Matabele- 

 land {Sivale).) 



14. (13) Slender species ; abdominal fasciee 



not tegumentary. 



15. (16) Frontal pubescence golden ; post- 



scutellum covered with dense pale 

 pubescence ; stigma and uervures 

 pale testaceous cinerascens, Westw. 



(Natal, t., Durban (Mitir) ; Nyasaland {Neave) ; 



Transvaal (t. of leviannulatus).) 



16. (15) Frontal pubescence whitish ; post- 



scutellum bare ; stigma and ner- 



vures dark clavata. Smith. (Sierra 



[Leone, t., N, Nigeria {Macfe).) 



17. (18) Anterior tarsi flattened, lamellate, 



ivory-white ; frontal pubescence 



golden ; abdomen parallel-sided. 



Length 10 mm patellifera, Westw. 



(Cape of Good Hope, t., Durban {Muir) ; Mata- 

 beleland {Swale), cJ §; Nyasaland, German East 

 Africa {Neave).) 



18. (17) Anterior tarsi simple, not lamellate; 



species with tegumentary or pubes- 

 cent fasciae on abdomen. 



19. (22) Mesonotum almost bare of pubes- 



cence ; legs entirely red. 



20. (21) Tergites 3 and 4 with very coarse 



rugose punctures along the apical 



