Summer diapause in females of Minois dryas (Lepidoptera: Satyridae)

This study focuses on the seasonal occurrence of a univoltine butterfly, Minois dryas Scopoli, in Kyoto (warm temperate zone) and Hokkaido (subfrigid zone). Adult females were collected periodically and their ovarian stage was determined. In Kyoto, females emerging in early July entered reproductive...

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Bibliographic Details
Published inEnvironmental entomology Vol. 26; no. 2
Main Authors Kida, Y. (Maruseppu Town Insectarium, Hokkaido (Japan)), Numata, H, Fujii, H
Format Journal Article
LanguageEnglish
Published 01.04.1997
Subjects
DIAPAUSA
DIAPAUSE
ETE
GEOGRAPHICAL VARIATION
HOKKAIDO
HONSHU
JAPAN
JAPON
NYMPHALIDAE
OVAIRE
OVARIAN DEVELOPMENT
OVARIES
OVARIOS
OVIPOSICION
OVIPOSITION
PONTE
REPRODUCTIVE DIAPAUSE
SUMMER
VERANO
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Summary:This study focuses on the seasonal occurrence of a univoltine butterfly, Minois dryas Scopoli, in Kyoto (warm temperate zone) and Hokkaido (subfrigid zone). Adult females were collected periodically and their ovarian stage was determined. In Kyoto, females emerging in early July entered reproductive diapause and did not oviposit until mid-August. In females from Hokkaido, however, ovaries developed promptly after emergence in mid- and late July, and there was no sign of diapause. Males emerged earlier than females' did not enter diapause, and mated soon after females emerged in both Kyoto and Hokkaido. The environmental factors that maintain summer diapause in females are not clear; females oviposited soon after transfer to long-day or short-day conditions not only in the laboratory but also when reared under natural photoperiod and temperature
Bibliography:1997051374
L20
ISSN:0046-225X
1938-2936
DOI:10.1093/ee/26.2.201