. An introduction to zoology, with directions for practical work (invertebrates). CHAP, xxvii INSECTA : HYMENOPTERA 431 in one of the curiously contorted attitudes characteristic of it. When full grown, the larva spins a little, oval, brown cocoon, inside of which it remains dormant for a couple of weeks only, if it belongs to the first brood in the year; or for the whole winter, if it is of the second brood. It changes to a pupa only a short time before the fly emerges. The winter - cocoons are usually formed in the ground, and are larger than the spring ones. The perfect winged insect is not
. An introduction to zoology, with directions for practical work (invertebrates). CHAP, xxvii INSECTA : HYMENOPTERA 431 in one of the curiously contorted attitudes characteristic of it. When full grown, the larva spins a little, oval, brown cocoon, inside of which it remains dormant for a couple of weeks only, if it belongs to the first brood in the year; or for the whole winter, if it is of the second brood. It changes to a pupa only a short time before the fly emerges. The winter - cocoons are usually formed in the ground, and are larger than the spring ones. The perfect winged insect is not often noticed as it is quiet and inconspicuous, and the body is only about \ of an inch long. Fig. 323 represents a male Pine Saw- fly with his characteristic dark-coloured body and beau- tiful branched antennae. The female is more than one-third as large again as the male, dark markings; she. Fig. 322.—The Piue Saw-fly {Lophyrus pini). , Larva ; b, cocoons, the lower one open and empty (natural size). and. 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 Lulham, Rosalie Blanche Jermaine. London, Macmillan
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherlondo, bookyear1913
