NOTES ON THE ETHIOPIAN FRUIT-FLIES — I. 219 



45(44). Small cross- vein much beyond the middle of the discoidal cell ; wings with 



a much more extended dark pattern. 

 46(47). Wings of usual shape and rather broad, with short stigma and distinct 



costal bristle, and with the fore half variegated ; oc. well developed 



Phibphylla, Rond., p. 249. 



47(46). Wings rather narrow, with parallel sides, with elongate stigma and no costal 



bristle, and with the fore half usually entirely infuscated ; oc. very thin 



or even wanting Ocneros, 0. Costa, p. 250. 



48(11). Third longitudinal vein quite bare or only with a few bristles near the base ; 



ocp. mostly pale ; arista usually bare or shortly pubescent ; scp. 



sometimes less developed ; anal cell usually with a short point. 

 49(50). Dc. much behind the line of the a. sa. ; wings narrow and long, with 



parallel sides ; anal cell with a long point . . Ocnerioxa, Speis. 



50(49). Dc. on the line of the a. sa. or only a little behind ; wings of usual shape. 

 51(52). Anal cell quite rounded outwardly, its lower angle being neither acute nor 



produced Tephritis, Latr. 



52(51). Anal cell with the lower angle acute, and more or less produced in a short 



point. 

 53(54). Prst. wanting ; oc. very little developed ; arista shortly plumose ; body 



pale-coloured Staurella, BezzL 



54(53). Prst. always present ; arista bare or shortly pubescent. 

 55(60). Body mostly pale-coloured, often with black spots on thorax and scutellum ; 

 scp. always pale ; wings with yellowish bands or rays, or quite hyaline. 



56(57). No oc. ; small cross- vein at or before the middle of the discoidal cell 



Carpomyia, A. Costa, 



57(56). Oc. well developed ; small cross- vein beyond the middle of the discoidal cell. 



58(59). Eyes narrow, much higher than broad ; prsc. as widely separated as the 



dc. ; wings with yellowish longitudinal rays . . Craspedoxantha, Bezzi. 



59(58). Eyes rounded ; prsc. nearer together than the dc. ; wings with cross bands 

 or wholly hyaline . . . . . . . . . . . . Terellia, R.D. 



60(55). Body quite black, at the most only the abdomen reddish ; wings dark brown 

 or blackish, with hyaline spots and indentations. 



61(64). Thorax shining black, the ground-colour of back not or little altered by the 

 faint greyish pollen ; scutellum convex, shorter than broad. 



62(63). Three i. or. ; ocp. blackish or pale ; a. set. wanting or rudimentary, much 

 shorter than the very long b. set. . . . . . . Aciura, R.D. 



63(62). Only two i. or. ; a. set. about as strong as the b. set. ; ocp. quite black 



Spheniscomyia, Bezzi. 

 64(61). Thorax on the back densely clothed with greyish pollen, the ground-colour 



not or hardly visible ; scutellum flat, as long as broad, usually with 



strong a. set. 

 65(66). Wings of usual shape, with an Aciura-\ike pattern, without hyaline spots 



on the disc . . . . . . . . . . . . . . Tephrella, Bezzi. 



