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Chapter Summary

Epistrophe are associated with forests, where they dwell in open spots and forest edges and are found on flowers and sunlit leaves. They probably also occur in the canopy layer. E. eligans and E. ochrostoma appear in March to April. E. grossulariae is among the last to occur; the adults can be found on flowers in forest edges and grasslands as late as September. The larvae are aphid predators, and are usually associated with aphids on trees, but also occur on shrubs and tall herbs. E. flava larvae have been collected from aphid galls on Malus. Epistrophe larvae have a characteristic flattened shape and green colour, a good camouflage on tree leaves. Larvae of E. grossulariae seem to live for one to three years before pupating. Most species of Epistrophe are broad-bodied, large hoverflies with large, rectangular yellow bands on a black abdomen.

Keywords: aphid predators; E. eligans; E. flava larvae; E. ochrostoma; Epistrophe; Malus



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