. Des parasites animaux et la maladie humaine. Les insectes vecteurs ; parasites ; les maladies parasitaires ; parasitologie médicale ; insectes en tant que porteurs de la maladie. Les piqûres de moustique et recours 453 d'autre part, la croyance populaire généralisée dans le rôle joué par le moustique, le fait que plusieurs observateurs ont observé des phénomènes similaires, et le fait que Dermatobia holding a été observé entre les pattes de mouches, et n'a jamais été vu en fait du dépôt de ses oeufs sur un hôte, il est sage de jeter la théorie de moustiques comme impossible. Comme remarqué par Sambon, ce vol peut avoir plusieurs façons de disp

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. Animal parasites and human disease. Insect Vectors; Parasites; Parasitic Diseases; Medical parasitology; Insects as carriers of disease. MOSQUITO BITES AND REMEDIES 453 On the other hand, the widespread popular belief in the part played by the mosquito, the fact that several observers have independently observed similar phenomena, and the fact that Dermatobia has been observed holding flies between its legs, and has never been seen actually depositing its eggs on a host, make it unwise to discard the mosquito theory as impossible. As remarked by Sambon, this fly may have several ways of disposing of its eggs, and the utilization of the mosquito and perhaps of other insects as transports for them may well be one of these ways. The mosquito involved, whenever determined, has been found to be a species of Jan- thinosoma; in the one case where the species was determined it was found to be J. lutzi (Fig. 206). This is a large, beautifully colored mosquito, with flashes of metallic violet and sky blue on its thorax and abdomen. It is said by Knab to be one of the most blood- thirsty of American mosquitoes and is found throughout trop- ical America larvae breed almost ex- clusively in rain puddles, the eggs being laid in dry depressions on the forest floor which will become basins of water after a tropical downpour of rain. The eggs hatch almost with the first drop of rain, and mature so rapidly that adult insects may emerge in four or five days. The larvae feed on particles of organic matter, and are themselves fed upon by the larvae of the closely allied genus of mosquitoes, Psorophora, which breed in the same rain pools. Mosquito Bites and Remedies for Them As has been remarked before, the pain and irritation produced by a mosquito bite is usually believed to be due to the injection. Fig. 206. Mosquito, Janthinosoma lutzi, with The eggs, supposedly of Dermatobia hominis, attached to abdomen. (After Sambon.). Please note that these images are extracted from scanned pag

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