NOTES ON THE ETHIOPIAN FRUIT-FLIES — I. 227 



in the middle ; inferior angle of anal cell not surpassing in length the second basal 

 cell ; discoidal cell only about twice as long as the hind cross- vein. 



Type <j>, a single specimen (British Museum) from Nyasaland, Limbe, Chiromo, 

 Ruo R., 22 September 1916 (R. C. Wood). 



Note. — The three species, provisionally placed here, which require the formation 

 of a new genus, are : — 

 (a) grata, Wiedemann ; Loew, Berl. ent. Zeits., v, 1863, pi. ii, fig. 6 ; from Cape of 



Good Hope. 

 (6) pulchella, Austen, Bull. Ent. Res., i, 1910, p. 72, fig. ] ; from Uganda, Entebbe, 



and recorded from Camerun by Dr. Speiser in 1915. 

 {(■) formosuh, Austen, Bull. Ent. Res., i, 1910, p. 74, fig. 2 ; from Uganda. 



III. Leucotaeniella, gen. nov. 



The present new genus seems to be allied to the Oriental Taeniostoh, from which 

 it differs in having 3 i. or., no black stripes on the thorax, abdomen with whitish 

 instead of black bands, and different wing pattern. Head in front view as broad as 

 high ; eyes much higher than broad, very narrow ; occipital lower swellings much 

 developed ; jowls rather broad. Antennae inserted at the middle of the eyes, short, 

 with the third joint rounded at tip and reaching only the middle of the face ; arista 

 long plumose. Cephalic bristles long and strong, black ; 2 s. or. and 3 i. or., the 

 latter very strong ; 2 vt., the inner more than twice as long as the outer ; ocp. well 

 developed, black ; oc. strong and long ; genal bristle strong. Thoracic chaetotaxy 

 complete ; scp. much developed, the inner ones closely approximate ; dc. placed 

 only a little behind the line of the a. sa. ; 2 mpl. ; pt. long and strong. Scutellum 

 rather convex above, but less than in Ceratitis, black-spotted, with 4 bristles. 

 Abdomen ovate, bristly on the sides and at end ; male genitalia small ; ovipositor 

 broad, flat, as long as the last three abdominal segments. Legs stout ; front femora 

 with a complete row of bristles ; middle tibiae with a single spur ; row of bristles 

 on hind tibiae short, developed only about the middle. Wings broad, shaped and 

 patterned as in Ceratitis, but without basal streaks ; the bands are yellowish, partly 

 infuscated at the borders. Costal bristle long and strong ; 1st longitudinal vein 

 ending before the small cross-vein ; 2nd quite straight ; 3rd a little curved about 

 the middle, and then parallel with the last portion of the 4th, with bristles on its 

 whole length ; small cress- vein placed a little beyond the middle of the discoidal 

 cell ; posterior cross-vein long, outwardly oblique ; discoidal cell long, about 

 2'5-3 times as long as the hind cross- vein ; anal cross- vein deeply sinuous, the anal 

 cell with a rather broad point, which is not longer or even a little shorter than the 

 second basal cell. 



Type : the first of the two following new species, which may be distinguished 

 as follows : — 



] (2). Scutellum with a single black spot, the apical one (not counting the spots on 

 the postalar calli, which are present in both species) ; wing bands broader, 

 the basal one almost complete . . . . . . . . trispila, sp. nov. 



2(1). Scutellum with three black spots ; wing bands narrower, the basal one less 

 distinct . . . . ... . . . . . . . . pentaspila, sp. nov. 



(C419) . c2 



