175 



C. chofiopliiuj'i ifi miicli more painful tlian iluit of .1. lufcola, 

 causing' a circular patch of inflammation about 1 cm. in diameter 

 around tlie bite ; but the pain does not persist. On pigs these red 

 spots nnvy easily be observed and occasionally a slight flow of 

 blood. So far as the autlior is aware these larvae have no patho- 

 genic role; nevertheless the conditions of their life and their 

 relations with man are such that it is possible that they may at 

 times have some effect in this direction. He quotes the experi- 

 ments of Button, Todd and Henuiugton in this connection. 



The author next proceeds to discuss the anatomy of the larva of 

 A. lutcola. Pupation normally takes place 4 or 5 days after the 

 last meal, and the pupal stage lasts for about 11 days, at a mean 

 temperature of 03° C. 



The flual chapter of this paper is devoted to certain parasites 

 of the fly, namely, a flagellate organism which is occasionally 

 found in the intestine of A. hiteola and a Hymeuopteron, 

 Beiiihex olivata, Dahlb., which is frequently to be found flying 

 about the openings of the burrows of the wart-hog, and apparently 

 regards C. clioerophaga as its natural prey. The same fly has also 

 been observed attacking A. luteola. 



In an appendix a description is given of a new species of Choero- 

 ■iiiijia discovered by Dr. Becquaert at Katanga. From the little 

 wiiich is at present known of its habits, it would appear to behave 

 somewhat after the fashion of C. pnit'iji-andis; that is to say, it is 

 not so rigorously conflned to burrows during the daytime as the 

 other species. 



A bibliography concludes the paper. 



Neiva (Dr. A.) & De Fakia (Dr. G.). Notas sobre urn caso de 

 miiase humana ocasionada por larvas de Sarcopluiya pyophila, 

 sp. n. [Notes on a case of human myiasis caused by larvae 

 of Sarcophaga pyophila, sp. n.] — Memorias do Instituto 

 Oswaldo Cruz, Rio de Janeiro, v, no. 1, 1913, pp. 16-23. 



In Brazil the flies most frequently causing human myiasis are 

 Chrijsoinyia inacellaria, F., and Der^natohia lioviinis, L. 

 Usually, physicians neglect to rear the larvae from such cases, 

 which accounts for the fact that myiases caused by Sarcophaga are 

 little known. The species causing cutaneous myiasis are S. 

 caniaria, S. magnifica, S. latifrons (Europe), S. ruficollis (India), 

 S. sp. (Guiana), S. lamhens and the new species discovered by 

 the authors, S. jiyophila (Brazil). 



The last-named species was bred from larvae found in a suppura- 

 ting contusion in the right parietal region of a girl (10). The 

 suppuration had been favoured by the long hair. 



The authors believe that a case of myiasis of the external genital 

 organs described by Dr. 0. de Lima (Medicina Militar, R. de J., 

 no. 2, 1910, pp. 113-117) as having been caused by S. magnifica 

 was really due to S. wohlfahrtia. 



