. The biology of insects. Insects -- Biology. GROWTH AND TRANSFORMATION 193 the familiar hive-bee, the casting of the last larval cuticle, whereby a '' prepupa " with conspicuous wing-rudiments. Fig. 54.—Pupa and Puparium of Rhagoletis pomonella. X lo. A, early-stage pupa enclosed in puparium and shedding prepupal cuticle (lateral view) ; B,the same, ventral view ; C, later pupa within puparium and separated prepupal cuticle (lateral view) ; D, still later pupa removed from puparium (lateral view) ; E, pupa shortly before emergence (ventral view). An, anus ; Anty antennal lobes ; ASp, ant


. The biology of insects. Insects -- Biology. GROWTH AND TRANSFORMATION 193 the familiar hive-bee, the casting of the last larval cuticle, whereby a '' prepupa " with conspicuous wing-rudiments. Fig. 54.—Pupa and Puparium of Rhagoletis pomonella. X lo. A, early-stage pupa enclosed in puparium and shedding prepupal cuticle (lateral view) ; B,the same, ventral view ; C, later pupa within puparium and separated prepupal cuticle (lateral view) ; D, still later pupa removed from puparium (lateral view) ; E, pupa shortly before emergence (ventral view). An, anus ; Anty antennal lobes ; ASp, anterior larval spiracle ; Atr, atrium (anterior part of larval pharynx) ; E, compound eye; Mthy larval mouth; A^i, pronotum; ATj, mesonotum; pm, pupa- rium; ppu, prepupal larva (fourth larval instar, inside of puparium) ; P'-6, proboscis ; PSp, posterior larval spiracle : Pt, ptilinum ; Pu, pupa : PuSp, pupal dorsal spiracle of pronotum; tra, tracheal linings of preceding instar; w, subocular lobe; W2, wing; W3, halter. X 10. From R. E. Snodgrass (jfourn. Agr, Res., xxviii, 1924). O. 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


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