The external surface of facets of representatives of 19 families of Lepidoptera is discussed and illustrated. Two types of structures are recognized, this with nipples predominate. The other structures (pleats) developed probably in the course of a reduction. The ultrastructure of surface in the form of granulation is described.
A nucleopolyhedrovirus was isolated and characterized for the first time from Leucoma salicis L. (Lepidoptera, Lymantriidae) in Turkey. The virus was observed in populations of L. salicis in G?m??hane. The dimensions of the polyhedrae fell between 2.08'0.31 (1.51-2.64) Fm (N=50). Virions contain 2 to 15 nucleocapsids per virion as seen in cross-section of polyhedrae. The sizes of the viral particles ranged between 250-290 x 32-40 nm. The virus was determined as a Turkish isolate of Leucoma salicis nucleopolyhedrovirus (LesaNPV-TR).
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