. A text-book of agricultural zoology. Zoology, Economic. DEAGON-FLIES. 259 Dragon-plies (Odonata). The Dragon-flies are all carnivorous, feeding off butterflies and moths when adult, and upon various water insects when in the larval stage. The adults have large eyes, these often occupy- ing the greater part of the head. They are provided with very. Fig. 134.—Dragon-flies. A, A Dragon-fly (jEsclma grandis), partly dissected; b, larva; c, pupa; d, head of LibellvXa dejpressa, fc, Head; t to (", thoracic segioents ; a, abdomen ; an, antennee; «, e, eyes ; m, jaws ; /, upper lip. (Nicholson.
. A text-book of agricultural zoology. Zoology, Economic. DEAGON-FLIES. 259 Dragon-plies (Odonata). The Dragon-flies are all carnivorous, feeding off butterflies and moths when adult, and upon various water insects when in the larval stage. The adults have large eyes, these often occupy- ing the greater part of the head. They are provided with very. Fig. 134.—Dragon-flies. A, A Dragon-fly (jEsclma grandis), partly dissected; b, larva; c, pupa; d, head of LibellvXa dejpressa, fc, Head; t to (", thoracic segioents ; a, abdomen ; an, antennee; «, e, eyes ; m, jaws ; /, upper lip. (Nicholson.) powerful mouths. Their wings are usually transparent, and have a number of mesh-like veins. The legs have a series of spines upon them. Dragon-flies are most useful as insect destroyers. Each individual seems to have a hunting-ground. 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 Theobald, Frederick Vincent, 1868-1930. Edinburgh and London, W. Blackwood and sons
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectzoology, bookyear1899
