Handbook of medical entomology . ost. According to Edmund and Etienne Sergent (1907), myasis causedby the larvae of Oestris ovis is very common among ^he shepherds inAlgeria. The natives say that the fly deposits its larvae quickly,while on the wing, without pause. The greatest pain is caused whenthese larvas establish themselves in the nasal cavities. They thenproduce severe frontal headaches, making sleep impossible. Thisis accompanied by continuous secretion from the nasal cavitiesand itching pains in the sinuses. If the larvse happen to get intothe mouth, the throat becomes inflamed, swall
Handbook of medical entomology . ost. According to Edmund and Etienne Sergent (1907), myasis causedby the larvae of Oestris ovis is very common among ^he shepherds inAlgeria. The natives say that the fly deposits its larvae quickly,while on the wing, without pause. The greatest pain is caused whenthese larvas establish themselves in the nasal cavities. They thenproduce severe frontal headaches, making sleep impossible. Thisis accompanied by continuous secretion from the nasal cavitiesand itching pains in the sinuses. If the larvse happen to get intothe mouth, the throat becomes inflamed, swallowing is painful,and sometimes vomiting results. The diseased condition may lastfor from three to ten days or in the case of nasal infection, longer,but recovery always follows. The natives remove the larvae fromthe eye mechanically by means of a small rag. When the nose isinfested, tobacco fumigations are applied, and in case of throatinfestation gargles of pepper, onion, or garlic extracts are used. OestridcB, or Bot-flies 115. Larvae of Dermatobia cyaniventris. After Blan-chard. RhincBstrus nasalis, the Russian gad-fly, parasitizes the naso-pharyngeal region of the horse. According to Portschinsky, it not infrequently attacks manand then, in all the knowncases deposits its larvaein the eye, only. Thisis generally done whilethe person is quiet, butnot during sleep. Thefly strikes without stop-ping and deposits its larvainstantaneously. Imme-diately after, the victimexperiences lancinatingpains which without in-termission increase inviolence. There is an in-tense conjunctivitis andif the larvae are not removed promptly the envelopesot the eye are gradually destroyed and the organlost. Dermatobia cyaniventris—This fly (fig. 83) is widelydistributed throughout tropical America, and in itslarval stage is well known as a parasite of man. Thelarvse (figs. 81 and 82) which are known as the vermacaque, torcel, ver moyocuil or by several otherlocal names, enter the skin and give ris
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectinsectp, bookyear1915
