. Elementary entomology. Entomology. HYMENOPTERA 251 leaves the swollen skin of the aphis through a round hole. Often whole colonies of aphides will be found to have been thus parasi- tized. One little species {LysipJilcbus tritici) has been principally responsible for subjugating the green-bug, or southern grain aphis,. P'iG. 396. Lysiphlebiis tritici, male, the wasplike parasite of the green-bug. (Very much enlarged) (After S. J. Hunter) which has been so destructive to grain in the southwest; this par- asite also attacks many other commonly injurious aphides. Larvae of the large green tobac
. Elementary entomology. Entomology. HYMENOPTERA 251 leaves the swollen skin of the aphis through a round hole. Often whole colonies of aphides will be found to have been thus parasi- tized. One little species {LysipJilcbus tritici) has been principally responsible for subjugating the green-bug, or southern grain aphis,. P'iG. 396. Lysiphlebiis tritici, male, the wasplike parasite of the green-bug. (Very much enlarged) (After S. J. Hunter) which has been so destructive to grain in the southwest; this par- asite also attacks many other commonly injurious aphides. Larvae of the large green tobacco or tomato worm {PJilegethojituis qtiinqtte- maailata (Fig. 333) are frequently found covered with what appear to be small silken eggs. These are the cocoons of little braconids of the genus Apantcles which have devel- y\g. 397. Lysiphlebus parasite in act of depositing oped within the cat- eggs in the body of a grain aphis. (Much enlarged) erpillar's body. Not (After Webster, United States Department of Agriculture). 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; Metcalf Collection (North Carolina State University). NCRS. Boston, Ginn
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Keywords: ., bookcentury1900, bookdecade1, booksubjectentomology, bookyear1912
