420 MAJOR W. S. PATTON. 



I have examined the paratypes of Musca hilli, Johnson & Bancroft, and except 

 for some dark markings on the apparent second and third abdominal segments, the\- 

 are identical with the Indian specimens of ventrosa, in many of which there are also 

 some dark markings on the same segments. I can see no reason at present for 

 considering M. hilli to be a distinct species, but hope to compare the external 

 genitaha of the Austrahan and Indian specimens to settle its identity. 



Awati gives his Musca kasauliensis as a synonym of M. nigriihorax, and there 

 seems to be no doubt that his species is M. ventrosa. 



Musca ventrosa is widely distributed in India, Burma, Assam and Ceylon, and is 

 also common in Africa ; it breeds in cow-dung. 



7. Musca albomaculata, Macquart. 



Synonyms : Musca dorsomaculata, Macquart. 



Musca convexifrons , auctores {nee Thomson). 

 Musca setigera, Awati. 



This species was determined for me by Professor Bezzi as Musca convexifrons, 

 Thomson. It is one of the common haematophagous species, and has been fully 

 described in collaboration with Major Cragg, I. M.S. On comparing Thomson's 

 description of convexifrons with it I have come to the conclusion that the Indian 

 species long known under this name is not Thomson's species. The discrepancies are 

 as follows : Thomson says that his specimen, a male from China, measures 6 mm., 

 but the largest Indian specimens I have seen measure only 5-5 mm. ; and further, 

 he says that his species ishke Musca autumnalis, de Geer {corvina, F.), which is quite 

 unlike the. Indian species. In order to settle this point I recently sent a typical 

 male to Professor Sjostedt for comparison with Thomson's type, and Dr. Roman 

 has kindly given me a note as the result of his examination and comparison of the 

 two species ; from this it is quite clear that the Indian species is not Musca convexi- 

 frons. Dr. Villeneuve tells me that he has compared this Indian Musca with 

 Macquart's types of Musca albomaculata and M. dorsomaculata and finds they "are 

 identical. I accept this determination for the present. I have very little doubt 

 that Thomson's convexifrons is the species known as Musca fergusoni, Johnson & 

 Bancroft {australis, Macquart, nee Boisduval), a species which is widely distributed 

 in Australia, as well as in the many neighbouring islands, and presumably extends 

 to China. At any rate, this species is very like Musca autumnalis, de Geer. If this 

 should eventually prove to be the case, the Austrahan species must in future be 

 known as Musca convexifrons, Thomson. 



8. Musca pattoni, Austen. 



Synonym : Musca spinosa, Awati. 



This species has been fully described by Austen, and the types are in the National 

 Collection. It is widely distributed in India, Burma, Assam and Ceylon, but I have 

 not seen any specimens from any locality outside India. Awati has described the 

 female under the name of Mtisca spinosa. 



9. Musca gibsoni, Patton & Cragg. 



Synonym : Musca latiparafrons, Awati. 



This species was described by me in collaboration with Major Cragg, I. M.S. It 

 is especially abundant in hill stations on animals. The female has been described 

 by Awati vmder the name Musca latiparafrons. 



