. Bulletin of the Department of Agriculture. Agriculture; Agriculture. 30 DEPARTME:CirT BULLETIN- 779. Telenomus ashmeadi in the natural control of C. sayi. Frequently death does not occur until several hours, or even days, after the parasite has left the body of its host, the host meanwhile remaining inactive. Although eggs are deposited on the nymphs, no instances were ob- served in which the larvae of G. fuliginosa completed their develop- ment and issued before the host reached its adult stage. The seasonal history of G. fuliginosa corresponds very closely with that of C. sayi and the
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. 30 DEPARTME:CirT BULLETIN- 779. Telenomus ashmeadi in the natural control of C. sayi. Frequently death does not occur until several hours, or even days, after the parasite has left the body of its host, the host meanwhile remaining inactive. Although eggs are deposited on the nymphs, no instances were ob- served in which the larvae of G. fuliginosa completed their develop- ment and issued before the host reached its adult stage. The seasonal history of G. fuliginosa corresponds very closely with that of C. sayi and there are the same nuhiber of generations annually. The adults are engaged actively in parasitizing C. sayi throughout. Fig. 13.—Ocypterodes euchenor, a fly parasite of the grain-bug adult. Much enlarged. the period of activity of the host, extending from April to October or November. They are most numerous during the months of July and August, and at this time a dozen or more individuals have been collected by a few sweeps of the net in fields that were heavily in- fested with C. sayi. The parasite hibernates, in some instances at least, as a larva within the body of its host. In February, 1916, during severe winter weather, 25 adults of C. sayi were collected from hibernation at French, N. Mex., and placed in a heated room. They became active within a few hours and 3 days later 2 larvae of G. fuliginosa issued. These larvae were placed in a pupating cage and the resulting adults emerged 16 days later. It is probable that the parasite also hibernates as a puparium. 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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