254 EXPERIMENT STATION RECORD. 



" Trypanosomes of surra were not found to be transmitted hereditarily In 

 T. striatus Fabricus. The contaminated labellum of the fly does not appear to 

 be a factor in the conveyance of infection. The maximum length of time that 

 Trypanosoma evcmsi has been demonstrated microscopically in the gnt of this 

 species of fly after feeding on infected blood is 30 hours; the organisms were 

 found in the fly's dejecta 2* hours after biting the infected animal; and sus- 

 pensions of flies, when injected subcutaneously, were found infective for animals 

 for a period of 10 hours after the flies had fed on infected blood." 



Stages in life history of warbles, C. Vaney (A&s. in Jour. Roy. Micros. 8oc. 

 [London'], 1913, No. 5, p. 480). — The author distinguishes 4 larval stages in 

 species of Hypoderma, (1) the boring larva which emerges from the egg, trav- 

 erses the mucous membrane of the alimentary canal, and lodges in the sub- 

 mucosa ; (2) the migratory larva which develops in great part in the submucosa 

 of the gullet, migrates in the connective tissue to the subcutaneous tissue, and 

 finally perforates the dermis; (3) a short third stage, sedentai-y in the skin, 

 and breathing atmospheric air; and (4) the final stage, which lasts for 3 

 months and is sedentary until the host is left. 



It is concluded that all the facts regarding H. hovis confirm the theory of 

 Hinrichsen and Curtice that the parasite enters cattle by the alimentary tract 

 exclusively. 



Flies as carriers of Lamblia spores. — The contamination of food with 

 human excreta, C. W. Stiles and W. S. Keisteb (Put). Health Rpts. [U. S.], 

 28 (1913), No. 48, pp. 2530-2534). — The authors present evidence to show that 

 the house fly is capable of carrying Lamblia spores. " If flies can carry Lamblia 

 spores measuring 10 by 7fi, and bacteria that are much smaller, and particles 

 of lime that are much larger, there is no ground to assume that flies may not 

 carry Entamoeba and Trichomonas spores." 



Flies and disease in the British army, S. Westcott (Jour. State Med., 21 

 (1913), No. 8, pp. 480-488). — This general account includes observations made 

 by the author. 



Control measures for the olive fly, Chapelle (Bui. Meiis. Off. Renseig. Agr. 

 [Paris], 11 (1912), No. 12, pp. 1703-1707).— This is a summary of the results 

 of observations and experiments by the Oleaculture Service in France during 

 1912. 



The Anthomyidae, J. Schnabl and H. Dziedzicki (Adhandl. K. Leopold. 

 CaroUn. Deut. Akad. Naturf., 95 (1911), No. 2, pp. 55-358, pis. 35).— A revision 

 of the family Anthomyidae taken in its widest sense. Special consideration is 

 given to the male genitalia, the plates consisting of drawings of the hypopygia. 

 Descriptions of a large number of new species are included. 



A synopsis of the dipterous groups Agromyzinae, Milichiinse, Ochthi- 

 philinae, and Geomyzinae, A. L. Melandeb (Jour. N. Y. Ent. Boc, 21 (1913), 

 No. 4, pp. 283-300, pi. 1). — A continuation of the paper previously noted (E. S. 

 R., 29, p. 657). 



The importance of the rat flea in determining- the distribution of bubonic 

 plague, S. KiTASATO (Berlin. Klin. Wchnschr., 50 (1913), No. 41, pp. 1881-1884; 

 aha. in Jour. Amer. Med. Assoc., 61 (1913), No. 21, p. 1939). — The author con- 

 firms the efficacy of the method of collecting rat fleas by turning guinea pigs 

 loose in the infected buildings. During the course of work at Kobe in 1909-10 

 guinea pigs collected infected fleas in 11 of 42 houses supposed to have been 

 thoroughly disinfected after cases of plague, thus proving that the disinfection 

 had not been complete. One hundred and twenty-two guinea pigs which were 

 turned loose in 36 other houses from which rats had been exterminated and 

 the buildings made absolutely rat proof collected but one flea and no signs of 

 infection were found. 



