Studies on the ultra-morphological characteristics diversity of fourpopulations of whitefly species(Hemiptera:Aleyrodidae)
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Key Words:whitefly, ultra-morphological characteristics, diversity, SEM
Abstract: The ultra-morphological characteristics of the 4th instar nymphs of four whitefly species,including Bemisia tabaci,Bemisia afer,Trialeurodes vaporariorum and Dialeurodes citri,was observed with scanning electron microscope(SEM). The results showed that the ultra-morphological characteristics could be make a distinction among four whitefly species researched,such as the conical lingula of Bemisia tabaci,the horizontal wrinkles on bulge region beside the end groove of Bemisia afer,the protuberance and aperture uesd to screte wax of Trialeurodes vaporariorum,the circular vasiform orifice and pebble protrude in the end groove of Dialeurodes citri,et al. And on the basis of the peculiar ultra-morphological characteristics among species of whitefly researched,draw up a concise program to retrieval. The ultra-morphological characteristics provided dependable reference to taxonomy for whitefly.