The entomologist's text book : an introduction to the natural history, structure, physiology and classification of insects, including the Crustacea and Arachnida . ree followingdivisions :— 1. The Cicadarice, having the tarsi three-jointed, and theantennae very short, terminated by a fine bristle, com-prising the families CicadidcB, Fulgoridce, and Cerco-pidcB. 2. The Aphidiens, having the tarsi two-joined, and the an-tennae longer, without a terminal bristle, containing thefamilies Apkidce and PsyllidcB. Latreille also here placesthe Thripsidce, but its organization renders this locationdoubt
The entomologist's text book : an introduction to the natural history, structure, physiology and classification of insects, including the Crustacea and Arachnida . ree followingdivisions :— 1. The Cicadarice, having the tarsi three-jointed, and theantennae very short, terminated by a fine bristle, com-prising the families CicadidcB, Fulgoridce, and Cerco-pidcB. 2. The Aphidiens, having the tarsi two-joined, and the an-tennae longer, without a terminal bristle, containing thefamilies Apkidce and PsyllidcB. Latreille also here placesthe Thripsidce, but its organization renders this locationdoubtful. 3. The Gallinsecta, having the tarsi one-jointed, ter-minated by a single claw. The males have two wings,and are destitute of a mouth. The female is wingless,and furnished with a sucker. Comprising the singlefamily Coccidce. 364 ORDERS OF PTILOTA. ORDER VI.—NEUROPTERA. This order belongs to the division having the mouthformed with mandibles for mastication, and chiefly dis-tinguished by the structure of the wings, which are naked;that is, not inclosed by elytra or tegmina, but often havingthe anterior and posterior pairs of equal size, and fmnished. Dragoa-fly. with a great number of nerves, which gives the wings theappearance, under the microscope, of a piece of the mostbeautiful net-work; whence, indeed, the name of the orderis derived, neuron signifying a nerve, and pteron a membrane inclosed between these nerves is very fineand transparent, often exhibiting a reflection of the prismatictints, or marked with spots or bands of various situation of these organs during repose is various; insome they are horizontally extended at right angles fromthe body, as in the larger Libellulidm; in others, as in thesmaller species of the same family, their inner surfaces areapplied against each other; whilst in the Perlidce they lieflat upon the back, or are deflexed at the sides like the roofof a house, as in Hemerobius, Psocus, &c. In many species NEUROPTERA
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Keywords: ., bookau, bookcentury1800, booksubjectcrustacea, booksubjectinsects
