FRUIT FLIES OF THE GENUS DACUS. 107 



with short yelloT\'ish pubescence ; apical spur of middle tibiae black ; pre-apical 

 tubercle of hind tibiae very prominent ; tarsi distinctly broadened at the end, 

 with the basal joints not whitish. Wings hyaline, with yellowish veins, without a 

 dark costal border, only the stigma being honey-yellow ; a faint dark spot at the end 

 of the third vein, often very little developed ; last portion of fourth longitudinal vein 

 curved at the base ; first basal cell wholly hyaline, even in the narrowed part above 

 the dilatation of the second basal cell ; anal streak wanting, the point of the anal 

 cell being only of a honey-yellow colour, like the stigma, but with a broad dark spot 

 at the end ; supernumerary lobe at the end of the anal vein well developed. 



Type (^ (British Museum) and some additional specimens of the same sex from 

 Taung-gyi, 4,000 ft., and Myitkyima, Southern Shan States, in peach {Pmnus'persica), 

 May to June {T. B. Fletcher). 



9. Chaetodacus correctus, nom. nov. 



Bactrocera zonata, Bezzi (wee W. W. Saunders), Mem. Ind. Mus., iii, 1913, p. 94, 

 pi. viii, fig. 4. 



Very near the true zonatus, but distinguished by the colour of the thorax, and 

 chiefly by the facial black spots being united together to form a black transverse 

 band. The whitish cross-band on the second abdominal segment is less developed. 

 The hind tibiae of the male are distinctly tuberculate before the end. 



This Uttle species lives in company with the two preceding ones, feeding on the same 

 fruits ; it shows also some affinity with the follo^v-ing, diversus, Coq., but differs from 

 it in many points of structure and coloration, which render impossible the suppositions 

 advanced by Hewlett in his interesting studies on the effects of citronella oil.* On 

 the other hand, it is quite possible that zonatus, tuberculatus and correctus, all feeding 

 on peach and all possessing the pecuHar tubercle on the hind tibiae of male, are only 

 different forms of a single species ; but while zonatus and correctus are Indian, 

 tuherculatus is found only in Burma. 



The puparium of the present species is of a rather dark, shining yellow colour. 



Pusa, Bihar, from peach {Prunus persica), 25 . vi . 1914 {T. B. Fletcher) ; Coimbatore, 

 on mango {Mangifera indica), v.\Tiii. 1913 {T. B. Fletcher) ; Guindy, Madras, 16-21. 

 viii. 1913, "attracted to opened termitarium " {T. B. Fletcher); Hagari, Bellary 

 District, Madras, on castor leaf, 14. viii. 1909. 



10. Chaetodacus duplicatus, sp. nov. 



A rather small black species, very near the following, but distinguished by the four 

 scutellar bristles and by the ciliated third abdominal segment of the male, and further 

 differing from any other species recorded here on account of the double black facial 

 band in both sexes. 



(^ $. Length of body, 5-6 mm., with the ovipositor. 



Head yellow, with striking black markings ; occiput black, with a yellow border 

 near the eyes, which becomes broader below ; frons with a middle dark spot, a black 

 ocellar dot, black lunula and three pairs of rather broad and well-defined black lateral 

 spots ; face shining, with two narrow, parallel, black cross-bands, the first a Uttle 



*Traus. Ent. Soc, London, 1912. pp. 412-418. pi. xxxix-x'. 



