Heteroecous
Guides
Ceruraphis eriophori
Wayfaring Tree-sedge Aphid
Ceruraphis eriophori is an aphid species with a heteroecous life cycle involving host alternation between Viburnum species (primary hosts) and sedges or related plants (secondary hosts). In North America, it has been collected from curled leaves of Viburnum lantana and V. opulus in New Brunswick, and from V. opulus var. roseum in Colorado. The species also occurs in Europe, where secondary hosts include Carex, Eriophorum, Luzula, and Typha; in North America, Cyperus virens is the only reported secondary host. Activity peaks in spring and autumn on primary hosts.