. Elementary entomology. Insects. FIG. 132. Dragon-fly (Libellulapnlchella}. (Slightly reduced) A, last nymphal skin ; B, adult. (After Folsom) SUMMARY OF THE NERVE-WINGED INSECTS AND THEIR RELATIVES A. With complete metamorphosis: Order Neuroptera. Wings equal; numerous cross veins. The dobsons (Sialidae). Larvae aquatic. The aphis-lions (Chrysopidae). Feed on aphides, etc. The ant-lions (Myrmeleonidae). Larvae make pits in soil. Order Mecoptera. Scorpion-flies. Elongate head, and tip of abdomen fang- like. Larvae live underground. Order Trichoptera. Caddis-flies. Wings with few cross veins a
. Elementary entomology. Insects. FIG. 132. Dragon-fly (Libellulapnlchella}. (Slightly reduced) A, last nymphal skin ; B, adult. (After Folsom) SUMMARY OF THE NERVE-WINGED INSECTS AND THEIR RELATIVES A. With complete metamorphosis: Order Neuroptera. Wings equal; numerous cross veins. The dobsons (Sialidae). Larvae aquatic. The aphis-lions (Chrysopidae). Feed on aphides, etc. The ant-lions (Myrmeleonidae). Larvae make pits in soil. Order Mecoptera. Scorpion-flies. Elongate head, and tip of abdomen fang- like. Larvae live underground. Order Trichoptera. Caddis-flies. Wings with few cross veins and clothed with hairs. Larvae live in water, many being case bearers. B. With incomplete metamorphosis (Pseudoneuropterd): Order Ephemerida. May-flies. Fore-wings much larger ; mouth-parts rudi- mentary. Nymphs aquatic. Order Plecoptera. Stone-flies. Hind-wings larger and plaited beneath the fore-wings when at rest. Nymphs aquatic. Order Odonata. Dragon-flies and damsel-flies. Wings about equal in size, with a nodus on the front margin. Nymphs 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 Sanderson, Dwight, 1878-1944; Jackson, C. F. (Cicero Floyd), b. 1882. Boston, New York [etc. ] Ginn and Company
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