. The biology of dragonflies (Odonata or Paraneuroptera). Dragon-flies. XVIl] BIONOMICS, ETC. 331 of the Dragonfly's egg, which it devours completely in a few days. It then pupates, and emerges as an imago ten or twelve days later. The female uses her wings for swimming, and by this means seeks out the eggs of CaJopteryx, which are laid in the leaves of water-lilies [94]. I have found the epithelium of the mid-gut in the larva of Ischnura heterosficfa almost completely destroved by a large undescribed species of Gregarine Sporozoan (fig. 169), four or five of which completely filled the lumen
. The biology of dragonflies (Odonata or Paraneuroptera). Dragon-flies. XVIl] BIONOMICS, ETC. 331 of the Dragonfly's egg, which it devours completely in a few days. It then pupates, and emerges as an imago ten or twelve days later. The female uses her wings for swimming, and by this means seeks out the eggs of CaJopteryx, which are laid in the leaves of water-lilies [94]. I have found the epithelium of the mid-gut in the larva of Ischnura heterosficfa almost completely destroved by a large undescribed species of Gregarine Sporozoan (fig. 169), four or five of which completely filled the lumen of the gut. The larva can live for days with this parasite inside it, but gradually becomes weak and sickly-looking, owing to its inability to digest any Fig. IfiS. Polynema natans Lubbock, 9, Britain ( x 20). After Miall, from 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 Tillyard, Robin John, 1881-1937. Cambridge [Eng. ] : University Press
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