Preliminary Experiments on the Crossing between Two Puzzling Phytophagous Ladybirds, Henosepilachna vigintioctomaculata and H. pustulosa (Coleoptera : Coccinellidae)

概要

論文の詳細を見る
The sexual isolation between Henosepilachna vigintioctomaculata (Hv) and H. pustulosa (Hp), both belonging to Henosepilachna vigintioctomaculata complex, were studied with an allopatric combination (V-I=Honshu form of Hv and P-II=Typical form of Hp) and a sympatric combination (V-II=Hokkaido form of Hv and P-III=Sapporo form of Hp) by male multiple choice method. Almost all V-I males mated with homogamic females but P-II males mated at random with both V-I and P-II females. Males of both V-II and P-III mated more homogamically than heterogamically. In eggs laid by adults not mated before experiment, hatching ratio was distinctly lower in eggs from heterogamic pairs than those from homogamic pairs. Hatching ratio of eggs laid by females presumably already mated were intermediate between those of homo- and heterogamic pairs of newly mated adults.
日本昆虫学会の論文
1979-06-25