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Most of the published studies of Delphastus pusillus biology and behavior on Bemisia spp. actually refer to D. catalinae. Similarly, Delphastus species in commercial insectary cultures are probably D. catalinae and not D. pusillus. We discuss the historical reasons for the clouded identity of these native coccinellid beetles.
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Hoelmer et al. (2003) studied this question.
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