. Cassell's natural history. Animals; Animal behavior. TEE DRAG OX MIEd. of the male is banded with azure II insect about an inch and a quarter '"'"^ -y AGRIOX PUELLA abundant in Britain. Agrion puella in wliich the abdomen bhie, while that of tlie female is almost entirely brassy black, is ; long that occurs almost everywhere; and the beautiful Callepterijx vinjo, of which the male is steel-blue with a large brown patch with steel-blue lustre on each wing, and the female rather greenish with brownish wings, is to be met with frequently about running waters. Some American species hav
. Cassell's natural history. Animals; Animal behavior. TEE DRAG OX MIEd. of the male is banded with azure II insect about an inch and a quarter '"'"^ -y AGRIOX PUELLA abundant in Britain. Agrion puella in wliich the abdomen bhie, while that of tlie female is almost entirely brassy black, is ; long that occurs almost everywhere; and the beautiful Callepterijx vinjo, of which the male is steel-blue with a large brown patch with steel-blue lustre on each wing, and the female rather greenish with brownish wings, is to be met with frequently about running waters. Some American species have the abdomen of inordinate length, extending far beyond the closed wings. These form the genera Megaloprepes and Mecistorjaster, species of which attain the length of four or five inches. In a second group, that of the ^schnid^e, the abdomen is still cylindrical, but stouter in proportion than in the Agrionides. The head also is large and nearly hemispherical in form, and the eyes are enormous, usually covering the whole upper and lateral surfaces, and meeting on the crown in the middle line. The wrings are always extended at the sides of the body. These are large and strong insects, possessing a wonderful power of flight, and several species are common in Eurc^e and Britain. The Gi-eat Dragon Fly {yEschm grandis) is one of these. It is nearly three inches long, and is of a light rusty brown colour, with a few paler markings. Another is Gomphus vidgatissimm, a black insect nearly two inches long, with yellow bands on the thorax and a line of the same colour along the back of the abdomen. Some of the tropical species attain a considerably larger size. * Finally, in the true Libellulides we find the head, eyes, and wings showing the same general characters as iir the last group, but the abdomen is either broad and more or less flattened or comparatively slender, and then triangular m section. In some forms the abdomen shows an approach to the type of the ^schnides, but then reco
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Keywords: ., bookcentury1800, bookdecade1890, booksubjecta, booksubjectanimals
