NEW ETHIOPIAN FRUIT-FLIES OF THE GENUS DACUS. 69 



Head yellowish ; occiput shining, with the vertex reddish with two black spots 

 and with a broad blackish patch on each side ; orbits yellow, broadened below ; 

 ocellar dot black ; frons opaque, with three pairs of blackish dots on the sides and 

 an undetermined fuscous patch in the middle ; lunula shining black ; face entirely 

 shining, with a broad rounded black spot on lower half of each antennal groove ; 

 peristomial spot broad and black. Antennae entirely reddish yellow, the third 

 joint a little infuscated at the end, the first joint much shorter than the second ; 

 palpi and proboscis reddish yellow. Cephalic bristles black ; two pairs of distant 

 lower fronto-orbitals. Thorax entirely black, slightly reddish on the sides in the 

 hind half and along the pleural sutures, chiefly on the front half. The bright yellow 

 markings are as follows : humeral calli entirely ; a short triangular stripe along 

 the sides of the transverse suture ; a rather broad mesopleural stripe, ending 

 with a spot on upper border of sternopleura ; a single hypopleural spot. The back 

 is punctate and clothed with short greyish pubescence ; mesophragma entirely 

 black. Scutellum bright yellow, with a narrow black basal line. Halteres whitish. 

 All the bristles are black ; no trace of anterior supra-alars ; the middle scapulars 

 are well developed, like the external ones ; pteropleurals rather weak ; a single 

 pair of scutellar bristles. Abdomen in shape, colouring, punctuation and 

 pubescence like that of annulatus ; but it is less elongate, more oval ; the hind 



Fig. 5 Dacus blepharogaster, Bezzi, sp. n. 



border of the third segment has also a narrow yellowish band]; third segment 

 with 6-7 black cilia at the sides of the hind border. Legs with the coxae pale 

 yellowish, the middle and hind femora being dark reddish at the end ; all the 

 tibiae are broadly darkened, the posterior ones being entirely black ; ; tarsi reddish 

 brown, with all the praetarsi whitish. Wings (fig. 5) hyaline, with the fore border 

 and the apical spot as in annulatus, but there is a distinct greyish spot before the 

 end of the anal vein, which is entirely wanting in that species. The veins are 

 yellowish and their disposition is like that of annulatus, but the prolongation of 

 the anal cell is much more developed, being longer than the rest of the anal vein. 

 Type (J, a single specimen in the writer's collection, taken near Ghinda, 

 Erythraea, 7.xi.l916, by Dr. Alberto Mochi. 



7. Dacus erythraeus, sp. nov. (fig. 6). 



Allied to the preceding species, but distinguished by the smaller facial black 

 spots and by the non- ciliated third abdominal segment of the male ; and also 

 differing from it and from annulatus and mochii by the broader black base of 

 the scutellum and by the isolated blackish apical spot of the wings. 



