. Animal parasites and human disease. Medical parasitology; Insects as carriers of disease. 364 TICKS Other Troublesome Ticks Although there are a large number of species of ticks which will attack man, there are a few in addition to the disease-causing species named above which deserve special mention on account of the particularly bad effects of their bites. The family Argasidse includes a number of species which produce very venomous bites when they attack man. The various species of Ornithodorus, some of which have already been mentioned as carriers of relap- sing fever, produce very painf
. Animal parasites and human disease. Medical parasitology; Insects as carriers of disease. 364 TICKS Other Troublesome Ticks Although there are a large number of species of ticks which will attack man, there are a few in addition to the disease-causing species named above which deserve special mention on account of the particularly bad effects of their bites. The family Argasidse includes a number of species which produce very venomous bites when they attack man. The various species of Ornithodorus, some of which have already been mentioned as carriers of relap- sing fever, produce very painful bites. Another species worthy of mention is the famous " miana bug," Argas persicus (Fig. 159), which is especially renowned in Persia, but which also occiu-s in many other parts of the Old World. This species is often a great tormentor of human be- ings, especially in dirty huts where it can breed readily. It is primarily, however, a parasite of fowls, and is believed to be identical with the American fowl tick, Argas miniatus. The bites of the miana bug are dreaded not only on account of their painfulness, but also because they are believed to be a means of transmission of European re- PiG. 159. Persian tick or fowl lapsing fever, in common with tick, Argas persicus. x 5. (After ,. , , .1 • , Braun.) hce and perhaps other insects. A closely allied species, A. re- flexus, is a common parasite of pigeons in Europe and North Africa, and frequently attacks people who come in contact with infested birds or cotes. Another argasid tick which deserves special mention is the " pajaroello," 0. coriaceus of California. Herms states that " natives, principally Mexicans, in the vicinity of Mt. Hamilton fear this parasite more than they do the rattlesnake, and tell weird tales of this or that man having lost an arm or leg, and in one instance even death having ensued, as a result of a bite by the Pajaroello. There seems to be a suspicion in that region that th
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