New PDF release: Arkansas Butterflies and Moths

By Lori A. Spencer, Don R. Simons

Книга включает 263 видовых описания и более three hundred цветных фотографий, в том числе и для гусениц. Для каждого вида обсуждаются вопросы жизненного цикла, анатомии, поведения. Карты показывают районы и точки, где встречаются данные виды. Книга снабжена тремя алфавитными указателями по обычным и научным названиям, а также кормовым растениям гусениц.
Доп. информация: Файл является рипом с сайта Google Books. Этим определяется отсутствие некоторых страниц (до 20% от общего числа) и невысокое разрешение сканирования (около a hundred dpi).

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Example text

The abdomen consists of 10 recognizable segments (count from the thorax posteriorly) (Fig. 9). Two plates comprise each segment, a dorsal tergum and ventral sternum. Squeeze the thorax to expand the abdomen, and observe the flexible intersegmental membranes that corlnect the plates in the anterior-posterior direction, and the pleural membranes connecting them dorso-ventrally. The system of plates and membranes is analogous to a hinged suit of armor (Fig. 10). At the tip of the abdomen are paired sensory organs I the cerci I which respond to puffs of wind and vibrations, and in males the styles which give tactile input during attempts to copulate.

G. 1977. Imms General Textbook of Entomology, 10th Edition; Vol. 1, Structure, Physiology and Development; Vol. 2, Classification and Biology. london: Chapman and Hall. Fig. 1. Male American cockroach, Periplaneta americana. 25 Fig. 2. Scanning electron micrograph of the cockroach head. C, compound eye; 0, ocellus (simple eye); segments of the antenna, including S, scape; P, pedicel; F, flagellum. Bar = 1 mm. 26 Fig. 3. Forewing (tegmen) and hindwing of Periplaneta americana. Abbreviations indicate the major veins of the wings, important characters for identifying uncommon species.

Record your data in DATA B LAN K II. METHODS The Preparation of Gas Mixtures. The making up of mixtures of nitrogen, oxygen and carbon dioxide in desired proportions for use in experiments on respiratory control is often necessary. This may be accomplished most conveniently by the use of a graduated spirometer such as is commonly used in courses on vertebrate physiology. The gases to be mixed, or added to air, must be obtained in commercially-available cylinders equipped with proper outlet valves.

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