ABSTRACT
Introduction ................................................................................................................................. 365
Recording of the Mating Sounds ............................................................................................... 365
Properties of Male Vibratory Sounds ......................................................................................... 366
Male Species-Specific Mating Sounds ....................................................................................... 367
Female Response Sounds ........................................................................................................... 375
Acoustic Differences between B. tabaci and B. argentifolii ..................................................... 378
Conclusion .................................................................................................................................. 379
Acknowledgements ..................................................................................................................... 379
Whiteflies (Aleyrodidae) include many pests of agricultural plants and vectors of plant viruses. The
current wide distribution of pest whiteflies is mostly the result of accidental introduction. The pests
have been introduced with their host plants, most noticeably over the past 20 years. Because of the
relative uniformity of adult morphology, taxonomic diagnoses of the whiteflies are based usually on
characters of fourth-instar nymphs (Mound and Halsey, 1978). However, it is very difficult to
identify whitefly species based on characters of pupal cases when faced with such biological and
genetic variation as host range, host-plant adaptability and plant virus transmission capabilities
(Costa and Brown, 1991; Brown et al., 1995a, 1995b).
