The website AphID, a guide for identifying cosmopolitan and polyphagous species of aphids, was developed by researchers from several American and Canadian institutions, including the USDA CPHST Identification Technology Program (ITP), the University of Maryland, the Systematic Entomology Laboratory (SEL) and the Université de Montréal. AphID was designed to assist port and quarantine officials in simple, preliminary identification of aphids.
Aphids are sap-sucking insects most common in temperate zones around the globe. They cause direct damage to plants by feeding and serve as vectors for viruses, while their honeydew promotes mold and attracts ants. Many aphid species with significant economic impact have a worldwide distribution, but officials are particularly interested in detecting those not yet found in North America.
Consult the website: http://AphID.AphidNet.org/