Broun. — Notes on Fruit-flies. 327 



It was discovered here in one pineapple imported from Earotonga 

 on the 5th December, 1903, and on the 14th of that month Mr. 

 G. Harnett, Assistant Inspector, and I again detected it in two 

 cases of pineapples from Suva. We also found it on various 

 occasions afterwards in oranges, grenadillas, and mammas-apples 

 from Tonga and Rarotonga. The perfect flies were subsequently 

 reared here from the maggots in considerable numbers, so that 

 this new pest threatens to become as troublesome and injurious 

 as the Queensland fly. 



Dacus (Tephritis) xanthodes, sp. nov. 



Imago. — Length of body, 4J lines ; expanse of wings, 7 J lines. 



Body elongate, yellow, occasionally testaceous, extremity of 

 abdomen blackish, head sometimes rufescent, tarsi infuscate ; 

 on the thorax, from base to apex, there is a central pale ivory- 

 like streak, along each side there is a similar one ; these lines 

 after death become less conspicuous. 



Head as broad as the thorax, smooth ; on its back part there 

 are four black outstanding setae, and between the eyes six finer 

 ones. Antenna; normal, their terminal joint elongate and rather 

 darker than the others ; at the tip of the preceding one arises 

 a very long seta, which, though stout at its base, becomes very 

 slender and darker towards the extremity. Eyes large, pro- 

 minent, their inner edges straight and moderately distant from 

 each other ; they are finely facetted, and of a brilliant purple 

 during life. Thorax cylindrical or subovate, nearly twice as 

 long as it is broad, with two slight almost equidistant con- 

 strictions at each side ; the surface bears numerous minute 

 black granules, from each of these proceeds a fine dark hair ; 

 at the base, which is deeply emarginate, there are two long 

 rigid conspicuous black setse directed horizontally backwards, 

 four smaller ones are situated just before the posterior constric- 

 tion, and about an equal number along each side. Hind-body 

 quite the length of the thorax, its basal three segments, irrespec- 

 tive of the narrowed anterior portion, of the same length and 

 breadth, thus forming a cylindric figure, fourth segment rather 

 shorter and narrowed behind, the terminal elongate and tapering 

 towards its apex, with very fine grey hairs ; the preceding seg- 

 ments are minutely sculptured and bear many dark slender 

 hairs. 



Legs stout, moderately elongate, with short black hairs ; 

 posterior tibiae somewhat arcuate. Tarsi elongate, pilose, their 

 basal joint rather more than half of their entire length, fifth 

 bilobed ; claws black and rather small. 



Halteres yellow, medially slender, clavate and triangular at 

 the extremity. 



