162 



is dealt with by removal, the resultant cavity being washed with 

 a disinfectant. This treatment also applies to fly larvae, of which 

 that of Cordylohia anthropophaga is the form most common in dogs 

 in Africa. 



Greig (D. M.). Myiasis oestrosa : Being the Occurrence in the Human 

 Subject of the Larva of Hypodcrma bovis. — Edinburgh Med. J I., 

 N.S., xxviii, no. 6, June 1922, pp. 258-266. 



The title of this article, compiled from papers to which full reference 

 is given, indicates its contents. 



BiSHOPP (F. C), Mitchell (J. D.) & Parman (D. C). Screw-worms 

 and other Maggots affecting Animals.^ — U.S. Dept. Agric, 

 Washington, D.C., Farmers' Bull. 857, December 1919, revised 

 January 1922, 19 pp., 7 figs. [Received 7th June 1922.] 



Most of this information has already been noticed [R.A.E., B, vi, 121], 

 the species dealt with being Cochliomyia (Chrysomyia) macellaria, F. 

 (screw-worm fly), Phormia regina, Meig., Lucilia sericata, Meig., 

 Sarcophaga texana, Aldr., 5. tuberosa var. sarracenioides, Aldr., and 

 S. robiista, Aldr. 



For C. macellaria, which is the most important of these, commercial 

 dried egg yolk, 3 oz. to each quart of water with the addition of one 

 teaspoonful of baking soda, has proved a useful bait. This material 

 is very attractive after decomposition has set in and will remain so 

 for over a week. It also has the advantage of being pleasant and 

 easy to handle. 



Glaser (R. W.). Herpetomonas muscae-domesticae, its Behaviour and 

 Effect in Laboratory Animals. — //. Parasii., Urbana, viii, no. 3, 

 March 1922, pp. 99-108, 1 plate. [Received 7th June 1922.] 



During the summer of 1921 house-flies were frequently found feeding 

 at the punctures made by Stomoxys calcitrans and Lyperosia irritans 

 [Haematobia serrata) on cattle. One of three species of flagellates 

 found in the digestive tract of Mtisca domestica during these observa- 

 tions was Herpetomomas muscae-domesticae. The percentage of flies 

 found infected in New Jersey corresponds closely with that recorded 

 in warmer climates. 



The morphological characters of this flagellate are discussed. 

 Although the form under consideration appears to be morphologically 

 identical with the European one, it is possibly a geographical variety 

 or a distinct species, as experiments in inoculating laboratory animals 

 with the intestinal contents of heavily parasitised flies all gave negative 

 resiflts. Herpetomonads from different parts of the world should be 

 carefully compared, and a study made of the seasonal forms occurring 

 in one region. 



The Orthoptera, Melanophis femur-rubrnm and Amblycorypha 

 oblongi folia , were used for obtaining pure cultures of the flagellates 

 free from the bacterial infections present in the intestinal contents of 

 flies. Of a large series of grasshoppers [M. femnr-ntbrum) inoculated, 

 a few survived and freed themselves from the intestinal bacteria in 

 about 48 hours, while maintaining H. muscae-domesticae. This also 

 happened in the case of the only two Tettigoniids [A. oblongifolia) 

 inoculated. 



