Annual report of the Board of Regents of the Smithsonian Institution . 2Cu ^V iCu vf A Sc R+M iCu 2Cu M Re C Figure 15.—The wings of a grasshopper (Dissosteira Carolina). A, Left fore-wing. B, Left hind wing. Lettering as on Figure 10 B. The great fan ofthe hind wing posterior to the vannal fold (vf) is possibly the combinedvannal and jugal regions muscler,. This part of the wing, therefore, we may term the remigialarea of the wing (Latin lemigium, an oar)-. The region between thevannal and jugal folds is the part of the wing here termed the vannus,or vannal region (fig. 14, V), though ord
Annual report of the Board of Regents of the Smithsonian Institution . 2Cu ^V iCu vf A Sc R+M iCu 2Cu M Re C Figure 15.—The wings of a grasshopper (Dissosteira Carolina). A, Left fore-wing. B, Left hind wing. Lettering as on Figure 10 B. The great fan ofthe hind wing posterior to the vannal fold (vf) is possibly the combinedvannal and jugal regions muscler,. This part of the wing, therefore, we may term the remigialarea of the wing (Latin lemigium, an oar)-. The region between thevannal and jugal folds is the part of the wing here termed the vannus,or vannal region (fig. 14, V), though ordinarily called the anal vannal veins typically spread out like the ribs of a fan, and, as wehave seen, their bases are associated with, or supported by, the distalend of the third axillary sclerite. (Fig. 10 B.) In some insects thevannus becomes so large, as in the hind wings of grasshoppers andkatydids (fig. 15 B), that it forms an efficient gliding surface which HOW INSECTS FLY SNODGEASS 401 enables the insects to sail through the air wdth comparatively littlemovement of the wings. Proximal t
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Keywords: ., bookauthorsmithsonianinstitutio, bookcentury1800, bookdecade1840
