Host-race Formation and Speciation in the Henosepilachna vigintioctomaculata Complex (Coleoptera, Coccinellidae) : III. Geographic Variation of Food Preference in the Thistle Feeder, H. pustulosa
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概要
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Food preference of Henosepilachna pustulosa was examined by food choice tests using eleven species of plants. Local samples tested covered the whole distribution area of the species. Based on the geographic variation of food preference, the species was divided into two races : fpB-1 distributed south in Honshu and the Oshima Peninsula of Hokkaido, and fpB-2 north in the mainland of Hokkaido. As to the preference for Caulophyllum robustum, the latter showed a distinct cline with increasing preference southward, while the former exhibited constantly low preference. This geographic discontinuity of the variation occurs in the Oshima Peninsula, approximately between Yakumo and Oshamanbe, where neither Cirsium nor Caulophyllum depending populations have been discovered despite the occurrence of these host plants.
- 日本昆虫学会の論文
- 1984-12-25
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関連論文
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- Host-race Formation and Speciation in the Henosepilachna vigintioctomaculata Complex (Coleoptera, Coccinellidae) : II Geographic Variation of Food Preference in Henosepilachna vigintioctomaculata
- Host-race Formation and Speciation in the Henosepilachna vigintioctomaculata Complex (Coleoptera, Coccinellidae) : I. Host-plant Ranges and Food-preference Types
- Host-race Formation and Speciation in the Henosepilachna vigintioctomaculata Complex (Coleoptera, Coccinellidae) : III. Geographic Variation of Food Preference in the Thistle Feeder, H. pustulosa