68 M. BEZZI. 



entirely black, opaque/punctate ; only the last segment is more or less reddish in the 

 middle of the hind border ; the segments are fused together in the middle, and the 

 third of the male is not ciliated ; ovipositor shining black, smooth, with the basal 

 segment swollen and of conical shape, not longer than the last abdominal segment ; 

 apical segment short, reddish yellow. Venter entirety black ; male genitalia dark 

 brown, surrounded with yellowish. Legs with coxae, trochanters and femora 

 shining black, but the middle pair with a narrow base, and the hind pair with 

 more than the basal half, yellowish ; tibiae yellowish, with blackish or darkened 

 basal half ; tarsi pale yellowish, with whitish basal joints. Wings (fig. 4) hyaline, 

 with yellowish veins, which are darkened on the dark markings; second vein 

 long, its' distance from the end of the third being only 1J times longer than 

 that from end of the first ; third vein straight at the end and parallel with the 

 last portion of the fourth, which is only a little curved near the' base ; the lower end 

 of the small cross-vein is placed at the middle of the discal cell ; the prolongation 

 of the anal cell is shorter than the remainder of the anal vein.* The dark pattern 

 consists of the black stigma, the infuscated bases of the marginal and submarginal 



Fig. 4. Dacus hamatus, Bezzi, sp. n. 



cells, and a very peculiar, hook-shaped band, which passes over the small cross- vein, 

 crosses the middle of the discal cell and ends sometimes with a short prolongation 

 in the third posterior cell. There is no trace of an apical spot or anal stripe. 



Type (J and type $, and some additional specimens of both sexes, in the 

 collection of the Imperial Bureau, from Nyasaland, Chiromo, Ruo. R., 11. v. 1916 

 (R G. Wood). 



The present species, with its characteristic wing pattern, seems to approach to 

 the Oriental species with banded wings, for which I have preserved the genus 

 Bactrocera in a restricted sense ; these last species however are always provided 

 with a pair of praescutellar bristles. 



6. Dacus blepharogaster, sp. nov. (fig. 5). ,_ 



Falling into section 28 of my Key (p. 90), but very different from rvfus on 



account of its prevalently black colour ; it is besides distinguished from annulatus 



and mochii, to which it is allied in general appearance, by the black-spotted face and 



by the ciliation of the third abdominal segment in the male. 

 (J. Length of body, 7 mm. ; length of wing, 6 mm. 



* All these peculiarities of the venation are to be found also in the nearly allied 

 inornatus, Bezzi, which however has no trace of the longitudinal keel on the abdomen. 



