Sperm Transfer in the Potato Ladybird Henosepilachna vigintioctomaculata (Coleoptera, Coccinellidae, Epilachninae)
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概要
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The sperm transfer in the potato ladybird Henosepilachna vigintiocto-maculata (MOTSCHULSKY) is described. In this species, a gelatinous substance, a putative homologue of spermatophore probably secreted from the male accessory gland, is formed in the bursa copulatrix of the female before the ejaculation. But it never encapsulates the sperm. The semen is ejected in mass in the proximal part of the bursa. Spermatozoa migrate along the common oviduct and are eventually preserved in the node-like sperm storage organ located at the middle part of the common oviduct. The gelatinous substance in the bursa copulatrix seems to be digested in the later period of sperm transfer. Approximately two days are needed to complete the whole process of sperm transfer in this species.
- 日本昆虫学会の論文
- 1985-12-25
著者
関連論文
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- On the Life Cycle of Epilachna admirabilis (Coleoptera, Coccinellidae) in Sapporo, Northern Japan, with Special Reference to its Hibernation by Adult Stage
- Sperm Transfer in the Potato Ladybird Henosepilachna vigintioctomaculata (Coleoptera, Coccinellidae, Epilachninae)
- Long Mating Season and its Bearing on the Reproductive Isolation in a Pair of Sympatric Phytophagous Ladybirds (Coleoptera, Coccinellidae)
- Schizopepon bryoniaefoius (Cucurbitaceae) as a Native Host Plant for Henosepilachna vigintioctomaculata (Coleoptera : Coccinellidae) in Hokkaido
- Crossing Experiments among Three Ladybird "Species" of Henosepilachna vigintioctomaculata Complex (Coleoptera, Coccinellidae) Feeding on Thistles and/or Blue Cohosh
- A Further Study on the Effect of Interspecific Mating on the Fitness in a Pair of Sympatric Phytophagous Ladybirds
- Sperm Storage Place in Adult Females of the Phytophagous Ladybirds Belonging to Henosepilachna vigintioctomaculata Complex (Coleoptera, Coccinellidae)