Abstract: Due to their unique characters, such as the cyclic parthenogenesis, multiple life cycles, oviparous or oviparous/viviparous, diverse galls, and differentiation of behavior, aphids always attract much attention of entomologists and evolutionary biologists. Aphids are good models for resolving many significant problems in biology. Integrated the new fruits in Aphidology, this paper reviewed the research status of Aphidology and discussed the problems in such aspects as aphid systematics, aphid biogeography and diversity, behavioural science of aphids, aphid-plant interactions, biology and ecology of aphids, aphid-symbiont interactions and aphid functional genomics. Finally, the future hot topics in Aphidology were suggested.

Key words: Aphid, Aphidology, research status, trends