. Insect life; an introduction to nature study and a guide for teachers, students and others interested in out-of-door life. Entomology; Nature study. 66 INSECT LIFE. Order Plecoptera (Ple-cop'te-ra). The Stone-flies. The members of this order have four membranous wings, with comparatively few or with many cross-veins; the hind wings are much larger than the fore wings, and are folded in plaits and lie upon the abdomen when at rest. The mouth-parts are of the biting type of structure, but are frequently poorly developed. The metamorphosis is incomplete. The name of this order is from two Greek
. Insect life; an introduction to nature study and a guide for teachers, students and others interested in out-of-door life. Entomology; Nature study. 66 INSECT LIFE. Order Plecoptera (Ple-cop'te-ra). The Stone-flies. The members of this order have four membranous wings, with comparatively few or with many cross-veins; the hind wings are much larger than the fore wings, and are folded in plaits and lie upon the abdomen when at rest. The mouth-parts are of the biting type of structure, but are frequently poorly developed. The metamorphosis is incomplete. The name of this order is from two Greek words: plecos, plaited, and pteron, a wing. It refers to the way in which the hind wings are. Fig. 38.—A stone-fly. Fig. 39.—A nymph of a stone-fly. folded when at rest. Fig. 38 represents one of the larger members of this order with the wings of one side spread, and Fig. 39 represents a nymph. Work on these insects is outlined in the chapter on Brook 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 Comstock, John Henry, 1849-1931; Comstock, Anna Botsford, 1854-1930. New York, D. Appleton and Company
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectentomol, bookyear1901
