. The biology of insects. Insects -- Biology. Fig. i8.—A, Forewing of nymphal Stone-fly {Taeniopteryx) showing the tracheal trunks and their branches {sc, subcostal ; r, radial ; m, median; c, cubital; a, anal). The pale tracks indicate positions of developing nervures. X 12. B, cross-section through developing wing of a Dragon-fly nymph {Anax). cu, cuticle ; e, epidermis ; rt, radial trachea ; mt, median trachea. X 150. After J. H. Comstock and J. G. Needham. Amer. Nat. xxxii, xxxiii. the second (mesothorax) and the hindwings to the third segment (metathorax) of that region of the body. The b
. The biology of insects. Insects -- Biology. Fig. i8.—A, Forewing of nymphal Stone-fly {Taeniopteryx) showing the tracheal trunks and their branches {sc, subcostal ; r, radial ; m, median; c, cubital; a, anal). The pale tracks indicate positions of developing nervures. X 12. B, cross-section through developing wing of a Dragon-fly nymph {Anax). cu, cuticle ; e, epidermis ; rt, radial trachea ; mt, median trachea. X 150. After J. H. Comstock and J. G. Needham. Amer. Nat. xxxii, xxxiii. the second (mesothorax) and the hindwings to the third segment (metathorax) of that region of the body. The base of the wing, its region of attachment, is relatively small and is supported by a series of sclerites which are connected by flexible cuticle to the thoracic wall, so that the wing is. 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 Carpenter, George H. (George Herbert), 1865-1939. New York, The Macmillan Company
Size: 2025px × 1234px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, bookpublishernewyorkthemacmilla
