. Bulletin of the Department of Agriculture. Agriculture; Agriculture. Fig. 21.—Sympiesis stigmatipennis: Immature larva feeding on larva of tuber moth. Much enlarged. (Original.) Fig. 22.—Sympiesis stigmatipennis; Mature larva. Much enlarged. (Original.) Fig. 23.—Sympiesis: s tig mat ipennis: Pupa. Much en- larged. (Original.). Fio. 24.—Sympiesis stigmatipennis: Female. Much enlarged, (f)riginal.) This parasite issued in groat numbers in 1014 and 1915, and gives promise of doing much to control tiie h^af-mining tuber worm. The following record gives an average life cycle: 1915. .January
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. Fig. 21.—Sympiesis stigmatipennis: Immature larva feeding on larva of tuber moth. Much enlarged. (Original.) Fig. 22.—Sympiesis stigmatipennis; Mature larva. Much enlarged. (Original.) Fig. 23.—Sympiesis: s tig mat ipennis: Pupa. Much en- larged. (Original.). Fio. 24.—Sympiesis stigmatipennis: Female. Much enlarged, (f)riginal.) This parasite issued in groat numbers in 1014 and 1915, and gives promise of doing much to control tiie h^af-mining tuber worm. The following record gives an average life cycle: 1915. .January 2fi.—Tubf;r-rrK)th larva j)(l Ijy iSyrnpicsi'i February 21.—3 Sympiesis stigmatipennis adults iHsued. (Males.). 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 United States. Dept. of Agriculture. [Washington, D. C. ?] : The Dept. : Supt. of Docs. , G. P. O.
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Keywords: ., bookauth, bookcentury1900, bookdecade1910, booksubjectagriculture
