Ivela auripes BUTLER in Hokkaido : Behavior and Morphology of Females; Host Egg Defense Mechanism against Parasitism by Trichogramma sp. nov.

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概要

• 論文の詳細を見る

• Ivela auripes (BUTLER) (Lepidoptera : Lymantriidae) is highly stenophagous on Cornus controversa HEMSL. (Cornaceae) and univoltine, overwintering as eggs laid in single-layer, geometrically shaped masses on the trunks of host trees. Egg mortality analysis showed 30.5% egg parasitism (8.9 progeny/host ; 92% parasitism of egg masses) by Trichogramma sp. nov. which was nearly thelyotokous (4.6% males). Parasitized eggs were not evenly distributed throughout the egg mass (81% were perimeter eggs). Similarly, uppermost perimeter eggs were more frequently parasitized than those lowermost in the egg masses. A gray dust material (precise origin unclear) covers the exposed surface of the egg mass and the dust appeared as a barrier to Trichogramma oviposition in non-perimeter eggs. The source of the dust and morphological adaptations to facilitate dust acquisition and storage was explored. Ivela auripes females, but not males, both normally diurnal, were observed to fly at night and were attracted to street lights.

• 日本昆虫学会の論文
• 1983-06-25

著者

• Schaefer Paul

  U.s. Department Of Agriculture Asian Parasite Laboratory:(present Address)u.s. Dept. Agriculture Ben

• Schaefer Paul

  U.s. Department Of Agriculture Agricultural Research Service Beneficial Insects Introduction Researc

関連論文

• Egg Parasitism in Lymantria dispar (Lepidoptera, Lymantriidae) in Japan and South Korea
• Synthetic Lymantriid Pheromones Attract Male Moths of Lymantria spp. (Lepidoptera : Lymantriidae) in Sumatra
• Ivela auripes BUTLER in Hokkaido : Behavior and Morphology of Females; Host Egg Defense Mechanism against Parasitism by Trichogramma sp. nov.

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