Taxakey to Aphids on the World's Crops

This TAXAKEY has been designed to enable identification to species level of the majority of aphids (Hemiptera: Aphidae) found on the worlds field crops. Information is included on the classification and distribution, diagnosis, bionomics, economic importance, and important references for each species, making the TAXAKEY an information source on aphids. The comprehensive Help system contains on-screen information on aphid morphology, a glossary of terms, descriptions, and a list of references, all available without leaving the key.