ルビーアカヤドリコバチおよびアカヤドリコバチの寄主選択の研究 : 1.Ceroplastes属3種にたいする選択

概要

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Anicetus benefitus ISHII et YASUMATSU is an important parasite of Japanese red scale, Ceroplattes rubens, which is one of the most injurious insect pest of horticulture in Japan. This wasp has a closely related species, Anicetus ceroplastes ISHII, which is a parasite of another scale, Ceroplastes pseudoceliferus. In Japan there are three species of scales belonging to the genus Ceroplastes, viz. C. rubens, C. pseudoceliferus and C. japonicus. This paper concerns with some differences in the behavior of above two related wasps, under the laboratory conditions, in selecting their hosts from these three scales. The wasps of first (summer) generation of the year are used for these experiments. In the experiments of A. benefitus, a large percentage of wasps thrust their ovipositors into C. rubens, quite a number choose C. pseudoceriferus, and very few attack C. japonicus. The results of these experiments are shown in Tables 1-3. In A. ceroplastes, almost all individuals which show the ovipositing behavior select C. pseudo-celiferus, whereas C. rubens and C. japonicus are rarely attacked. The results are indicated in Table 4-6. These series of experiments seem to suggested that the tendency of selecting the special host is more firmly establishied in A. ceroplestes than A. benefitus. It is also clear that A. benefitus has a potencial tendency of selecting another host in addition to its habitual one.
社団法人日本動物学会の論文
1956-06-15