. Les animaux et l'homme ; un manuel élémentaire de zoologie et de physiologie humaine. Zoologie, physiologie. Les moustiques ET CATERPILLAR.S 91. jamais (ou très rarement) sucent le sang. De chaque côté du bec, et résultant à sa base, est une paire d'antennes ou palpi, vraisemblablement d'organes pour sentir et goûter, ou qui, à moins d'aider à déterminer la nature de l'aliment. Ces palpi sont aussi longtemps que le bec chez les mâles, mais moins de la moitié tant que chez les femelles. Quelles sont les gros points noirs sur la tête ? Faire un dessin d'un moustique, montrant et attribution de ces pièces. Si certains des moustiques sont maintenus en vie

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. The animals and man; an elementary textbook of zoology and human physiology. Zoology; Physiology. MOSQUITOES AND CATERPILLAR.S 91. never (or very rarely) suck blood. On each side of the beak, and arising at its base, is a pair of feelers or palpi, presumably organs for smelling and tasting, or which at least aid in determining the character of the food. These palpi are as long as the beak in the males, but less than half as long as in the females. What are the large black spots on the head? Make a drawing of a mosquito, showing and naming these parts. If some of the mosquitoes are kept alive in jars filled with water and covered with netting the females may per- haps lay eggs on the surface of the water. But it is not at all certain that they will; indeed, they seem to lay eggs Fig. 37. Beak of female mos- only rarely when thus kept 1"''°' dissected to show the â ' â ' 1 â r piercing needle-hke parts and m confinement. If a slice of their sheath; mx. p., the max- banana be put in the jar the mosquitoes may be seen to suck the sap from it, and they may be kept alive for many days if given fresh banana every three or four days. If the egg- laying occurs, the life-history of our mosquitoes is com- pleted. A new cycle is about to begin. Distribution of mosquitoes.âMosquitoes are distributed all over the world, being found in enormous numbers in arctic regions and on high moutain ranges as well as in the tropics, and in swamps and marshy valleys. About four hundred and fifty species, or different kinds, of mos- quitoes are known, nearly seventy of which are found in North America. Besides the irritation caused by their "bite, " i.e., piercing with the sucking beak, it has been illary palpi, or feelers of the mouth. (Greatly magnified.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original w

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