Cheap This multiauthored publication presents illustrated keys to the 19 families and 706 described genera of Chalcidoidea known to occur in the Nearctic region. There are approximately 330 differences between the genera keyed and those listed in the most recent (1979) North American catalog, including about 200 additional genera. The book consists of 22 chapters by 17 world experts, plus an appendix of about 130 generic names no longer considered valid for the region, and separate indexes to chalcidoid names, animal hosts, and plant hosts. The first three chapters provide an introductio sale
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