ニッポンシロフアブの産卵植物とその卵塊

抄録

Egg-batches of Tabanus nipponicus Murdoch and Takahasi, 1969 were surveyed in 1979 through 1982. Only 11 egg-batches were collected during the period; 7 from 5 kinds of plants (mainly Cyperus microiria Steud.) growing in the pasture, 2 from 1 kind of plant in the forest, and 2 from 1 kind of plant in the pond indicating not so strong selectivity of oviposition plants as that of aquatic species in general. The height of oviposition sites ranged from 18 to 192cm above the ground or water surface. The egg-batches were light yellowish brown in color, and roughly conical or semioval in shape with 3 to 4 layers of eggs. Average number of eggs per batch was 278. Seven batches (64%) were parasitized by wasps.