54 MISC. PUBLICATION 631, U. S. DEPT. OF AGRICULTURE 



Pathogenesis. — This species occurs in traumatic dermal myiasis in 

 man and animals. In Serbia it has been reported as occurring in 

 wounds already infested with Wohlfahrtia magnified. 



SARCOPHAGA BARBATA Thomson 



Synonyms. — Parasarcophaga barbata (Thomson) ; Sarcophaga falculata Pan 

 delle ; Sarcophaga argentina Brethes. 



Geographical Distribution. — Nearctic Region : Quebec, Massachusetts, New 

 York, New Jersey, Pennsylvania, District of Columbia, Georgia, Indiana, Illinois, 

 Iowa, Missouri, Kansas, Texas, Oregon. Neotropical Region : Uruguay, Argen- 

 tina. Palaearctic Region : England, France, Corsica, Denmark, Germany, Austria, 

 Yugoslavia, Rumania, European Russia, the Caucasus, Georgia, north India, 

 Canary Islands, Madeira, Algeria, Egypt, Palestine, Iran, Tibet. Australian 

 Region : Hawaiian Islands. 



Recognition Characters. — Adult : There are two rows of black hairs behind 

 the eyes ; the presutural acrosticals are absent, and the postsutural ones repre- 

 sented only by the prescutellar pair ; two postsutural dorsocentrals are well 

 developed and situated close to the suture, although three or four weak ones 

 may be present in front of these. The legs are black ; the hind tibia of the male 

 is fringed with long black hair ; the middle tibia has only ordinary hair. Vein n 

 is bare. The first two abdominal segments lack strong median marginal bristles. 

 Length, usually 8-15 mm. Larva : The larva has been figured and described by 

 Hafez (46, p. 200-204) and by Mazza and coworkers (87), but because of the 

 lack of knowledge of the larvae of this genus, no diagnostic characters can be 

 given. 



Pathogenesis. — This species breeds ordinarily in carrion and has 

 been reported as a parasite on several species of insects. It is known 

 to larviposit commonly in wounds of man and animals. In Serbia it 

 has been reported in wounds in association with Wohlfahrtia magnif- 

 ied. Several cases of myiasis in Argentina have been described by 

 Mazza and his associates (87), in which it appears that the larvae, 

 though usually associated with Callitroga americand (C. and P.), may 

 be primary invaders. Because of the large size and rapid develop-, 

 ment of the larvae, they can cause both extensive and deep lesions, 

 sometimes penetrating to the bone or to a depth of 1 or 2 inches into 

 the muscle. Because of the crippling action it is one of the most 

 serious of the myiasis-produeing Sarcophaga. 



SARCOPHAGA BULLATA Parker 



Geographical Distribution. — Nearctic Region : Quebec, British Columbia, 

 Maine, Massachusetts, Connecticut, New York, New Jersey, Pennsylvania, Mary- 

 land, District of Columbia, Virginia, North Carolina, Georgia, Florida, Missis- 

 sippi, Ohio, Indiana, Illinois, Iowa, Missouri, North Dakota, South Dakota, 

 Kansas, Louisiana, Texas, Idaho, Colorado, Utah, New Mexico, Washington, 

 Oregon, California. 



Pathogenesis. — This species occurs commonly in the wounds of ani- 

 mals, especially in the South, and has been reported in dermal myiasis 

 in man. Dove (34) records two cases in necrotic wounds in man in 

 the Southern States. Several cases of intestinal myiasis in man have 

 been attributed to this species, and they may be authentic, since this 

 is a close relative of S. haemorrhoidalis and possibly similar in its 

 biology. 



SARCOPHAGA COOLEYI Parker 



Geographical Distribution. — Nearctic Region : Saskatchewan, Alberta, British 

 Columbia, New York, Virginia, Georgia, Florida, Michigan, Kansas, Montana, 

 Idaho, Wyoming, Colorado, Utah, Washington, Oregon, California. 



Pathogenesis. — Adult flies of this species were reared from larvae 

 taken from the ear of a man in Saskatchewan. 



