Fig. I. —The annual cycle of ovarian and testis development in the Corixidae. (1 and 2). The regression and development of ovaries of overwintering bugs; plotted as the percentage of animals in samples from different habitats with at least enlarged egg rudiments. The zones at the start and close of the breeding period indicate the variability found in habitats about Christchurch. (3). The volume of the testes in overwintering bugs. (4). The volume of the seminal vesicles in overwintering bugs. (5). Ovarian developments in bugs of the new generation.
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Transactions of the Royal Society of New Zealand : Biological Sciences, Volume 12, Issue 11, 10 June 1970, Page 116
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89Fig. 1.—The annual cycle of ovarian and testis development in the Corixidae. (1 and 2). The regression and development of ovaries of overwintering bugs; plotted as the percentage of animals in samples from different habitats with at least enlarged egg rudiments. The zones at the start and close of the breeding period indicate the variability found in habitats about Christchurch. (3). The volume of the testes in overwintering bugs. (4). The volume of the seminal vesicles in overwintering bugs. (5). Ovarian developments in bugs of the new generation. Transactions of the Royal Society of New Zealand : Biological Sciences, Volume 12, Issue 11, 10 June 1970, Page 116
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