. Jahresbericht des Regenten. New York State Museum, Wissenschaft. Bericht DES STAATES ENTOMOLOGE 329 aus der Prüfung der zugehörigen Abbildung, die einen Querschnitt durch die Rüssel der weiblichen über seine Mitte verstanden.* Die Schamlippen gesehen wickelt sich fast rund um die anderen Teile. Über ihm die zwei maxillae, teilweise inclosing der Teile. Über ihnen sind die beiden Kiefer, über diese, zentral, ist der Hypopharynx, mit seinen Verdickten, Mitte, sup-posed Speichel, Kanal-Über Dies ist das LABRUM" • - epipharynx - Die epiphar ynx eines Omega

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. Annual report of the Regents. New York State Museum; Science. REPORT OF THE STATE ENTOMOLOGIST 329 understood from an examination of the accompanying figure, which represents a transverse section through the proboscis of the female at about its middle.* The labium is seen wrapping itself nearly around the other parts. Above it He the two maxillae, partly inclosing the parts above it. Above them are the two mandibles, and above these, centrally, is the hypopharynx, with its thickened, middle, sup- posed saliva, channel- Above this is the labrum" •epipharynx — the epiphar- ynx of an omega-form, hav- ing the labrum closely at- tached to it. With- the labrum-epipharynx slightly brought from its position as shown for convenience in the figure, so as to rest on the hypopharynx, the channel for the passage of the blood, as has been described, is formed. In the continuation of this sucking-tube into the head, "in the posterior part of the head, it is enlarged in a large pumping-organ, which forces the imbibed fluid backward into the iDesophagus and stomach " (Macloskie).. Fig. 10—.Mouth parts of tlie musquito, cross-section. (After Diramock.) Uses of the Mosquito. I have spoken of the mosquito as the most universally annoying of all ?our insect pests. Why then, it may be asked, w^as it created, and does it serve any possible good in the economy of the world? The naturalist, as his acquaintance with nature becomes more extended, and the range of his studies widens so as to open up to him an insight into the interdependence of all animated nature, is led to accept the belief that nothing was made in vain, and that not a single one of the typical forms now in existence could be withdrawn without breaking the chain that binds all nature together in one harmonious (if properly interpreted) w^hole. This belief brings to him a faith that compels him to accept as of use whatever object owes its existence and preservation to the hand of its Creator and Guardia

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• bookcentury1800
• bookdecade1880
• booksubjectscience
• buchautor