Proceedings of the American Philosophical Society Held at Philadelphia for Promoting Useful Knowledge, Том 68American Philosophical Society, 1929 |
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Сторінка 247
... instar , may be shifted into the second or the first by exposure to lower temperatures . Moulting without Growth ... instar larva of Rhagoletis pomonella makes within the pu- parium to the fourth instar , as described by Snodgrass ( 1924 ...
... instar , may be shifted into the second or the first by exposure to lower temperatures . Moulting without Growth ... instar larva of Rhagoletis pomonella makes within the pu- parium to the fourth instar , as described by Snodgrass ( 1924 ...
Сторінка 251
... instar of both Dixippus and the silk worm . takes place in two growth cycles which together constitute the feeding period , and denies Przibram's deductions as to the number of cell divisions in an instar of Dixippus . It is of interest ...
... instar of both Dixippus and the silk worm . takes place in two growth cycles which together constitute the feeding period , and denies Przibram's deductions as to the number of cell divisions in an instar of Dixippus . It is of interest ...
Сторінка 255
... instar given is evidently the pronymphal stage , hence his " 12th instar of nymph " is the 11th larval stage , cf. Warren p . 8 . 4 Last larval exuvia . 5 To end of 10th instar only . Compare Miss Lamb's later paper of 1929 . TABLE 4 ...
... instar given is evidently the pronymphal stage , hence his " 12th instar of nymph " is the 11th larval stage , cf. Warren p . 8 . 4 Last larval exuvia . 5 To end of 10th instar only . Compare Miss Lamb's later paper of 1929 . TABLE 4 ...
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