THE FLIES THAT CAUSE MYIASIS IN MAN 



57 



Region: Baluchistan. Ethiopian Region: French Guinea, Anglo-Egyptian Sudan. 

 Eritrea. Italian Somaliland, Socotra, Mozambique, Southern Rhodesia, South 

 Africa (Transvaal [Pretoria], Cape of Good Hope). 



Pathogenesis. — According to Salem this species occurs acciden- 

 tally in intestinal myiasis. In one case in Egypt larvae passed in 

 stools pupated at once, but no mention was made of the time that had 

 elapsed before the stools were brought in. The larvae commonly occur 

 in the excrement of man and animals; they also occur in decaying 

 animal and vegetable matter, including carcasses and melons. Cuth- 

 bertson states that the females often appear at wounds of cattle and 

 sheep in Rhodesia, although this species does not seem to produce 

 wound myiasis. 



SARCOPHAGA BECKERI Villeneuve 



Synonym. — Parasarcophaga beckeri ( Villeneuve) . 



(Geographical Distribution. — PalaearctLc Region: France, Italy, Bulgaria, 

 Greece, Canary Islands. Morocco, Algeria, Tunisia. Tripolitania. Egypt. Ethio- 

 pian Region: Cameroun, Belgian Congo, Southern Rhodesia, South Africa. 



Pathogenesis. — Onorato (96) records a case where maggots of this 

 species invaded scalp lesions resulting from trichophytosis: he also 

 cites a similar previous record. Patton says that in Europe the eating 

 of food infested with these maggots occasionally causes human enteric 

 myiasis. 



Table 4. — Geographical distribution of the species of Sarcophaga according to 

 Wallace's Zoogeographical Regions 



Species 



Palac- 

 arctic 



Nearctic 



Neotrop- 

 ical 



Ethiop- 

 ian 



Oriental 



Austral- 

 ian 



albiceps Meigen _ 



X 

 X 

 X 







X 



X 



X 



barbata Thomson 



X 



X 



X 



beckeri Villeneuve . 



X 







bullata Parker 



X 









enmaria (Linnaeus) _ . 



X 











chrysostoma Wiedemann _. 





X 









cnoleyi Parker.. ..... 





X 

 X 

 X 









crasxipalpis Macquart ... _ _ 



X 

 X 

 X 



X 



X 



X 





X 



exuberans Pandelle . . _ 







fertoni Villeneuve. _ ... . 









froggatti Taylor ... . .— ... ... 









X 



X 



haemorrhoidalis (Fallen) ... ... 



X 

 X 

 X 



X 

 X 



X 



X 

 X 

 X 



X 



harpnx Pandelle. _. __ .... 



X 

 X 



X 



hirtipes Wiedemann... - - . 







lambens Wiedemann.. . . . . 



X 

 X 



? 



X 

 X 





I'herminieri (Robineau-Desvoidv) ... 









X 



misera Walker _ ... 



X 



X 

 X 



X 



X 



nodosa EngeL. .... .... ... 







peregrina Robineau-Desvoidv. __ 



X 







X 



X 



plncida Aldrich .. . . 





X 

 X 











X 









ri/ficornis (Fabricius) . . 





X 



X 





snrraceniae Riley. . . ... . ... 





X 









X 



X 













X 





x 















The Family CALLIPHORIDAE 



The family Calliphoridae includes the familiar bluebottle and 

 greenbottle flies, or blowflies. Recent American authors have, for 

 the most part, used the family name in the sense in which it is here 

 employed, although Curran has united it with the Sarcophagidae to 

 form the family Metopiidae. In Europe the family has been con- 

 sidered either as a separate unit or as pari of the Muscidae or the 



