. A manual for the study of insects. Insects. H YMEN OP TEKA. 6ll is composed of two segments (Fig. 737, ff), while in the Stinging Hymenoptera it consists of a single segment. There may be exceptions to this characterization among the minute members of the Terebrantia ; but the beginning student will hardly undertake the study of these. Family Tenthredinid^ (Ten-thre-din'i-dae;. T/ie Saw-flies, In this family the head and thorax are wide; the base of the abdomen is not slender, as in most Hymenoptera, but broadly joined to the thorax (Fig. 743, yj ; and the a'bdomen. Fig. 743.— The Locust saw
. A manual for the study of insects. Insects. H YMEN OP TEKA. 6ll is composed of two segments (Fig. 737, ff), while in the Stinging Hymenoptera it consists of a single segment. There may be exceptions to this characterization among the minute members of the Terebrantia ; but the beginning student will hardly undertake the study of these. Family Tenthredinid^ (Ten-thre-din'i-dae;. T/ie Saw-flies, In this family the head and thorax are wide; the base of the abdomen is not slender, as in most Hymenoptera, but broadly joined to the thorax (Fig. 743, yj ; and the a'bdomen. Fig. 743.— The Locust saw-fly, Nematus shnilaris : «, egg^ ; b, young larva ; c, full- grown larva ; oT, anal segment of full-grown larva ; e^ cocoon ; f^ adult. (From the Author's Report for 1879.) of the female is furnished with a pair of saws. The larvae look like caterpillars and feed upon leaves (Fig. 743); but they have, ordinarily, from twelve to sixteen prolegs, while. 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. joint author. Ithaca, N. Y. , Comstock Pub. Co.
Size: 1343px × 1860px
Photo credit: © Central Historic Books / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectinsects, bookyear1895
