Chorionic markings of some Aedine mosquitoes in Japan : I. Preliminary observations by a scanning electron microscope and a reflected lighting microscope

Eggs of Tripteroides bambusa, Uranotaenia bimaculata, Armigers subalbatus and 10 species of Aedes were preliminary observed with a scanning electron microscope and a reflected lighting microscope. Their shape, size and chorionic fine sculpturings were illustrated and described. The description of the eggs of Aedes nobukonis is new. The results show that the shape, size and chorionic sculpturings provide specific characteristics for identification except for three species belonging to subgenus Stegomyia, Aedes aegypti, albopictus and flavopictus, which have striking similarities in their appearances and fine structures on the surface.