FRUIT FLIES OF THE GENUS DACUS. 105 



(Psidium guyava), 1.x. 1914 {T. B. Fletcher); Lashio, 3,000 ft., and Tatkon, 

 U. Burma, in Solatium verbascifolium, 6-7. ix. 1914 (T. B. Fletcher); Maymyo, 

 3,500 ft., Upper Burma, in American chillies {Capsicum sp.), in pear (Pyrus communis) 

 and in peach (T. B. Fletcher). 



5. Chaetodacus ferrugineus incisus, Walker (1860). 



This is a very common Indian form, distinguished by the prevalent black colour of 

 the entire body ; the legs are also in great part black ; the frontal spots are much 

 developed and much darker than usual. The spot at the end of the scutellum is not 

 defined, but in certain hghts is rather distinct and pellucid. The puparium of this 

 form is of a straw-yellow colour, rather shining, with the stigmatic plates approxi- 

 mated and with less distinct segmentation. 



I have seen a great many specimens from the following locahties : — Kumaon, 

 10.1.1912 (Prof. A. D. Imms) ; Pollibetta, South Coorg, from jak fruit {Arlocarjnis 

 integrifolia), 15-26. v, 1914 (T. B. Fletcher) ; Santikoppa, North Coorg, from fruits of 

 Careya arborea, 4-10. v. 1914 {T. B. Fletcher) ; Bangalore, 3,000 ft., on mango leaves, 

 8. V. 1913, and on guava fruits {Psidium guyava), 27.x. 1907 {T. B. Fletcher): 

 Coimbatore, attacking mango^ fruits {Mangifera indica) ; Tatkon, Upper Burma, 

 in Solanum verbascifolium, 6-7. ix. 1914, Lashio, 3,000 ft., on same plant, viii.1914, 

 and Taung-g}a, l.iii.l910 {T. B. Fletcher). 



6. Chaetodacus ferrugineus versicolor, var. nov. 



(^ $. Length of body, 5'5-6"5 mm. Very hke t}'pical ferrugineus, but at once 

 distinguished by the coloration of the scutellum ; this is darkened in the middle and 

 at the end, and bears two broad yellowish spots, one on each side, but this coloration 

 is sometimes faintly developed, the scutellum being pellucid, perhaps as a result of 

 immaturity. The punctuation of the frons is mostly not distinct ; the thorax is 

 entirely of a reddish colour, only the yellow mesopleural stripe being narrowly 

 margined with black ; the femora are yellow ; in the wings the dark costa^ border 

 is not complete, and even sometimes wanting, the first basal cell is entirely hyaline, 

 and the anal stripe is not distinct. 



The sexual characters of the male in the wing are the same as va. ferrugineus. 



Peradeniya, Ceylon {E. E. Green) ; Pusa, Bihar, on guava and sapodilla {Achras 

 sapota) fruits, vi-vii. 1914 {T. B. Fletcher) ; Coimbatore, in mango {Mangifera indica) 

 fruits, vii.1913 {T. B. Fletcher). 



7. Chaetodacus zonatus, W. W. Saunders (1841). 



The following are synonyms of this species : — squalidus. Walker (1860) ; persicac, 

 Bigot (1889) ; mangiferae. Cotes (1893), and Bezzi (1913). 



Li my paper of 1913 I have distinguished zonatus (with the synonym persicae) from 

 mangiferae, which I considered to be a variety oi ferrugineus. Now, after comparison 

 of the types of 2)ersicae, Bigot, with those of mangiferae. Cotes, I have come to the 

 conclusion that they must be referred to the same species ; and as Saimders figures 

 his zonatus as having an entirely reddish thorax, both the above-quoted names must 

 be referred to it. C. squalidus. Walker, is evidently the same species, which is common 

 in Lidia, and very injurious to peach, mango and a number of other fruits. 



