92 



Dacus cequalis, Coquillet. "Near lonyicornis, Wiedemann, from Java, 

 but differing from the description in having the occiput chiefly reddish- 

 brown instead of yellowish, the pleura has two yellow streaks instead 

 of black ones, the anal cell is brown, &c. The evenness of the 

 costal brown area of the wings, which is bounded by the costa and 

 fourth vein, will serve to distinguish the present species from most of 

 others. Reddish-brown, front mottled with yellow, face yellow, an elongated 

 black mark on each side ; cheeks margin of occiput, humeri, a streak extending 

 along the mesothoracic suture each side and crossing the mesopleura, a large 

 spot on the hypopleura, the scutellum, except the base, halteres, sides and 

 hind margin of the second segment of the abdomen, narrow hind margin of 

 the fifth segment, also the tarsi, pale yellow ; femora largely blackish-brown. 

 Antennse projecting about half the length of the third joint below the oral 

 margin. Abdomen broadly clavate slightly longer than the ovipositor of the 

 female. Wings greyish hyaline, the front margin from the costa to the fourth 

 vein wholly dark brown, anal cell brown, the constricted outer portion and the 

 vein beyond it broadly bordered with brown." Length (excluding the ovipo- 

 sitor), 8 to 9 mm. 



Dacus frenchi., n.sp. 



(PI. I, fig- 4.) 



This species was figured in a coloured plate in an article on Fruit 

 Flies, written by Mr. C.- French, Government Entomologist in Victoria, 

 in their Journal of Agriculture, May, 1907, which was issued afterwards 

 as Bulletin No. 26, Department of Agriculture, Victoria. In this paper 

 there is no attempt to describe or name this handsome fly, French simply calls 

 attention to it, having been bred from oranges coming into Victoria from New 

 Caledonia. In the plate the coloration of the wings is accurate, but the 

 pattern upon the thorax is very misleading, as it shows a transverse band of 

 four yellow marks occupying the centre of the dorsal surface, whereas there 

 is only a light broad bar in the centre forming a silvery-brown dorsal stripe. 



This is a large species, measuring 10 mm., with a broad rounded body and the 

 large hyaline wings, with a broad costal stripe of light reddish-brown running 

 right round the tip so that it forms a terminal fourth oblique band on the 

 wing, at the basal half is a double band forming an irregular triangle with a 

 clear centre, and other oblique bands (the first broadest) between it and the 

 stripe, running round the extremity, so that there are four oblique transverse 

 bands crossing the wing in a downward direction. 



Head : proboscis fuscous, with a large black spot on either side below the base 

 of the antennae ; eyes reddish-brown, with dark prominent reddish blotch in 

 centre of face with a row of stout bristles along the hind margin of the head. 

 Thorax dull yellowish-brown, with the nude areas on the shoulders, the sides 

 and the scutellum very pale yellow, broadest in front, slightly truncate behind ; 

 the dorsal surface of the thorax clouded with black in an indistinct pattern 

 forming two slight parallel dark bars, the centre pale, and the whole clothed 

 with silvery pubescence. Legs yellow, with the tarsi darkest, clothed with 

 fine hairs, spines black. Abdomen finely pubescent, broadly rounded, with the 

 ovipositor and sheath very much produced ; general colour pale ochreous yellow, 

 with the base, a short band on the second segment, and a narrow well-defined 

 narrow parallel black band crossing through the centre of third, fourth, and 

 fifth segments, and a confluent blotch occupying the sides of the third and 

 fourth segments. 



Habitat New Caledonia. One female specimen. 



