870 NOTES ON FRUIT-FLIES, 



with short black bristles, with three pairs of lateral bristles on 

 the front and two above the ocelli on either side. Thorax : no 

 bristles on the front margin, but a tuft of tine hairs on each 

 shoulder: lateral bristles five in number, and two scutellar bristles. 

 Hah. — Russell Group, Solomon Islands; one male, caught with 

 a sweeping net, on the edge of the forest(W. W. Froggatt). 



Length 9 mm. 



Dacus passiflor^, n.sp. 



Head dull yellow; mouth-parts and antennae darker, terminal 

 joint of latter large; arista long, slender; eyes dark red; a lunate 

 dark blotch above the anteunse, front unspotted, dull brown; 

 ocelli enclosed in an angular black blotch. Thorax black, no 

 yellow on shoulders, the large angular nude area on mesopleura 

 not reaching the dorsal edge, yellow; scutellum narrow, convex, 

 dull yellow; double yellow spots forming a blotch on hypopleura. 

 Wings hyaline, nervnres chocolate-brown. Legs light yellow, 

 sometimes clouded at the apex of the femora, tibise, and tarsi. 

 Abdomen black, elongate, oval; in the female the basal segment 

 is broadly rounded, with the anal segments and ovipositor turned 

 down right under the basal portion; sheath of ovipositor large, 

 apex yellow. 



Chjetotactic characters . — Head : three pairs of 

 bristles on the front, the first pair longest, crossing each other 

 at the tips; the third pair below the ocelli shorter; apex with a 

 pair of stout bristles on either side. Thorax : bristles on front 

 margin short, four on either side, with a pair on the dorsal 

 surface above the scutellum, the latter furnished with a pair on 

 the hind margin. 



Hah. — Fiji (W. W. Froggatt; bred from Granadilla-fruits); 

 (A. Koebele; bred from mangoes); (T. Kirk; from fruit imported 

 into New Zealand). 



Dacus tongensis, n.sp. 



Length 9 mm., across outspread wings 12Jmm. 

 Head ferruginous; eyes reddish chestnut ; apical joint of 

 anteunse fuscous; two black spots below antennae, a blotch round 



