137 



taken to add fresh paper as the outer layer becomes soaked with the 

 fluid from the breeding medium so as to prevent other flies from laying 

 their eggs under the paper. Notes are given on the most satisfactory 

 breeding materials for the various species. 



The observations here recorded with regard to the habits of 

 Chrysomyia hezziana, Vill., in India are in agreement with those 

 previously noticed [R.A.E., B, ix, 53, 103]. Whereas Roubaud's 

 and Saceghem's observations made in Africa support the above, 

 Rovere found the eggs on the unbroken skin of animals, and it is 

 therefore highly desirable that further observations on the life-history 

 of C. hezziana should be made in Africa. In the present paper addi- 

 tional cases of myiasis in man and animals are recorded as due to this 

 species. From these records it is evident that these larvae may cause 

 rhinal, oral, aural, ocular, cutaneous and vaginal myiasis, and may be 

 found in any form of dermal or cavity myiasis except gastro-intestinal 

 and urinary myiasis. Present knowledge regarding the myiasis- 

 producing flies is reviewed [R.A.E., B, x, 17] ; they are dealt with in 

 three groups, viz. : the specific myiasis-producing flies, including 

 those that breed in living tissue only ; the semi-specific myiasis-producing 

 species, which although normally breeding in decomposing animal 

 and vegetable matter, will occasionally oviposit in living tissues, 

 attracted by foul smelling discharges, soiled wool, or even by fresh 

 blood ; and the accidental mj'iasis-producing flies, in which group 

 are included all those the eggs or larvae of which accidentally find 

 their way into the alimentary tract. 



The most important factor in the control of myiasis in India is the 

 education of the public in the necessity for protecting themselves 

 and their domestic animals from the attacks of C. hezziana. Care 

 should also be taken to destroy all larvae from infected cases and not 

 allow them to crawl away for pupation. The dressing, used in 

 America as a protection against the screw-worm fly [Cochliomyia 

 macellaria], consisting of equal parts of beeswax, fish-oil and carbon 

 tetrachloride, worked up with sufficient vaseline to give the necessary 

 consistency [R.A.E., B, vi, 150], might be used with advantage in 

 all veterinary hospitals in India, especially after the rains, when the 

 fly is most active. In treating wounds, the larvae should be induced 

 to leave the tissues before they are killed ; for this reason it is advisable 

 to spray the infected part with glycerine first to cause the larvae to 

 become active and then spray with chloroform water. 



These remarks apply also in the case of the semi-specific myiasis- 

 producing flies. 



Patton "(W. S.). Notes on some Indian Aphioehaetae. Aphiochaeta 

 xanthina, Speiser {repicta, Schmitz ; circiimsetosa, de Meijere ; 

 ferruginea, Brunetti), whose Larvae cause Cutaneous and Intestinal 

 Myiasis in Man and Animals, and Aphiochaeta rufipcs, Meigen, 

 whose Larvae occasionally cause Cutaneous Myiasis in Animals. 

 — Ind. Jl. Med. Res., Calcutta, ix, no. 4, April 1922, pp. 683-691, 

 1 plate. 



Aphiochaeta .xanthina, Speis., is extremely common all over the plains 

 of India, and has also been recorded from most of the tropical and 

 subtropical regions of the world. The larvae are known to cause 

 myiasis in man and animals. The fl}^ has been bred from the dung of 

 horses, cats and dogs, stale and decaying meat, and the dead bodies 



