Carex

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.

  aphidheteroecousViburnumCarexEriophorumleaf-curlhost-alternationMacrosiphini

• Cosmopterix fernaldella

  Fernald's Cosmopterix Moth

  Cosmopterix fernaldella is a small moth in the family Cosmopterigidae, described by Walsingham in 1882. Adults have distinctive golden brown forewings with complex white line patterns and metallic greenish-gold spots. The species is known from the northeastern and north-central United States and parts of Canada. Larvae are leaf miners on Carex species.

  leaf-minerwetlandCarexNorth-Americamicrolepidoptera

• Cymus californicus

  Cymus cf. californicus is a species of true bug in the family Cymidae, a group commonly known as seed bugs. The 'cf.' designation indicates a tentative identification based on morphological similarity to the described species C. californicus, pending definitive confirmation. Members of this genus are typically associated with wetland and riparian habitats. This species appears to be restricted to western North America.

  HemipteraCymidaeseed-bugwetland-insectriparianCarexwestern-North-Americataxonomic-uncertaintycf.-designation

• Elachista cucullata

  Elachista cucullata is a small moth in the family Elachistidae, described by Braun in 1926. It is distributed across eastern and central North America, with records from the United States and Canada. The species has a wingspan of 8–9 mm. Adults are active from May to July, and larvae are stem-leaf miners on Carex species.

  mothLepidopteraElachistidaeleaf-minerCarexNorth-Americawetland

• Erebia fasciata

  banded alpine

  Erebia fasciata, commonly known as the banded alpine, is a butterfly in the family Nymphalidae, subfamily Satyrinae. It is distributed across high-latitude regions of the Northern Hemisphere, ranging from central Siberia through Alaska, Yukon, and the Canadian Arctic to Hudson Bay, with additional populations on Banks Island and Victoria Island. The species exhibits a wingspan of 38–53 mm. Adults are active from May to late July depending on location, with larvae feeding on Carex species.

  butterflyalpinearctictundrasatyrinaenymphalidaeerebiacarexsedge-feederholarctic-distributionborealsubarctic

• Erebia pawloskii

  yellow-dotted alpine, Theano Alpine

  Erebia pawloskii, known as the yellow-dotted alpine or Theano Alpine, is a small butterfly in the subfamily Satyrinae of family Nymphalidae. It occurs across a broad Holarctic distribution spanning northwestern North America and northern Asia. The species inhabits cold, wet environments including tundra and bog habitats. Adults fly during mid-summer, and larvae feed on sedges of the genus Carex.

  butterflyalpineHolarctictundrabogCarex

• Taphrocerus schaefferi

  Taphrocerus schaefferi is a species of metallic wood-boring beetle in the family Buprestidae. The species is a leaf-miner whose larvae develop within the leaves of yellow nutsedge (Cyperus esculentus). It is found in North America with records from the United States and Canada including Alberta, Ontario, and Saskatchewan.

  leaf-minerwetlandsedge-associatedCyperaceaeCarex