104 PROF. M. BEZZI. 



33 (32). Face in both sexes with a middle black cross band ; femora black at 

 end ; wings without broad apical spot and with the hind cross- vein not shaded 

 below . . . . . . . . . . . . . . 12. macidijpennis, Dol. 



34 (31). Scutellum with a definite black spot at end; black species, with partly- 

 black femora ; wdngs with an isolated black spot at end . . 20. scutellaris, Bezzi. 



3. Chaetodacus ferrugineus, F. (1794). 



Bactrocera ferrttginea, Bezzi, Mem. Ind. Mus., iii, 1913, p. 95, pi. viii, fig. 5. 



Taking as the main character for this species the yellow bristles of the head, thorax 

 and scutellum, I Mdll assume for typical specimens those which show a complete 

 reddish coloration of the body, without any black pattern on the disk of the 

 mesonotum, and with a black margination of the mesopleural stripe, or with a faint 

 one on the anterior side alone. The frontal dark spots are wanting or less 

 developed ; the facial black spots are very broad ; the pteropleural bristle is 

 weak ; the occiput is red with a yellow border. The white-dusted band of the 

 hind border of the second abdominal segment is less distinct. 



Thus defined, C. ferrugineus {s. str.) is easily recognisable, but it is impossible to 

 take as the principal character that of the unspotted frons, as is done by Hendel 

 (Suppl. Entom., i, 1912, p. 20) ; immature specimens have an entirely reddish frons, 

 while in mature specimens there are more or less distinct central and lateral dark 

 spots. 



In my above-quoted paper of 1913, under the name oiferruginea are comprised 

 the present and the following three forms {dorsalis, incisus and versicolor) ; they may 

 be considered as varieties of a single species, inasmuch as all are to be found living at 

 the same time in the same fruits. 



I have seen specimens from Peradeniya, Ceylon {Prof. Bugnion) ; from Katihar, 

 Purneah Distr., N. Bengal, v. 1910 (Paiva) ; from Pusa, Bihar, April to July, bred 

 from guava {Psidium guyava) and loquat {Eriobotkrya japonica) fruits, together \dt\x 

 the form versicolor, which is hardly distinguishable, the scutellar coloration being 

 often faintly indicated and the wing characters being fully developed only in mature 

 specimens; from Mandalay, on mango {Mangifera indica) vi. 1912 {K. D. Shroff); 

 from Myit-Kyina, Upper Burma, in peach {Prunus persica) and in pomelo {Citrus 

 decmnana) fruits, June and September {T. B. Fletcher) ; from Maymyo, 3,500 ft., 

 Upper Burma, v. 1909, larva in mango {K. D. Shroff). 



4. Chaetodacus ferrugineus dorsalis, Hendel (1912). 



Dacus dorsalis, Hendel, Suppl. Entom., i, 1912, p. 18, pi. 1, fig. 3. 



Most specimens referred by me to ferrugineus in 1913 belong to the present form, 

 described originally from Formosa. It may be distinguished from the preceding form 

 by the characters given in the table ; the occiput is red, with dark spots. 



There are before me specimens from Peradeniya, Ceylon {E. E. Green) ; Pusa, 

 Bihar, 16. iv. 1914, in loquat {Eriohothry a japonica) {T. B. Fletcher); Coimbatore, South 

 India, on mango {Mangifera indica) 16.vii.l913 {T. B. Fletcher) ; Taru, Peshawar 

 Dist., bred from peach {Prunus jyersica), viii.-ix.1914 {T. B. Fletcher) ; Mandalay, 

 in mango and in chilly {Capsicum frutescens), 22. vi. 1912 {K. D. Shroff); Myit- 

 Kyina, Upper Burma, in pomelo {Citrus decumana), 13. ix. 1914, and in guava 



