ホソキリンゴカミキリの生態に関する 2, 3 の知見
スポンサーリンク
概要
- 論文の詳細を見る
Oberea vittata Blessig is distributed in Japan (Honshu, Shikoku and Kyushu), Korea, Manchuria and Eastern Siberia, and the adults appear from May to July (Hayashi, 1955). The female deposits her eggs in the young stems of Wistaria brachybotrys Sieb. et Zucc. and Lespedeza bicolor Turcz. var. japonica Nakai. Before oviposition she girdles and cuts down the stem below and above the egglaying site respectively, with her mandible (Fig. 2). The position of egg is between the bark and the wood (sometimes in the pith) and is just above the scar from the bite of female in which the ovipositor is inserted. Only one egg is laid at a time. The eggs are orange yellow or yellowish brown in color, elongate elliptical in shape, 3.0 to 3.7 mm in length and 0.7 to 0.9 mm in width (Fig. 1). They hatch in 8 to 13 days. The junior author tried to rear the larva by putting it in the stem of wistaria which had been cut from a field and set in the glass-tube containing water (the apex of stem was split longitudinally and the pith was removed in the size for which we could well afford to enclose the larva. The split portion was tied with thread, after the stem was stuffed with the larva). According as the development of larva, the stem was replaced by new and thicker one. But all the rearing larvae which hatched from June 18 to July 4 died to the end of August, except only one out of 29 individuals. Their death was probably due to the following two matters : (a) the renewal of stem had not been carried out at frequent intervals, and (b) the larva had been damaged in the time of transfer to a new stem. The survivor scarcely took the food from October onwards, but changed into pupa? (which seemed to be a deformed one) on the 17th of April of the next year and died in the stem six days after.
- 日本昆虫学会の論文
- 1957-02-01