Northern Metalmark
Calephelis borealis (Grote & Robinson, 1866)
Northern Metalmark: https://www.marylandbiodiversity.org/species/541
Synonyms
Hodges #4387 
Tags
G3G4 (Globally vulnerable) Threatened (MD) S2 (State rare) Western MD only

Map Snapshot

202 Records

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Status

Northern Metalmark is a globally rare species. In Maryland, Northern Metalmarks are considered threatened with a state ranking of S2 meaning that there are between six and twenty populations in the state. Northern Metalmarks are restricted to the three western counties with the majority of the populations found in Allegany County.

Relationships

Host plant is Round-leaved Ragwort. According to the Xerces Society Northern Metalmarks may also use Golden Ragwort and Common Fleabane as host plants.

Resources

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Citations

No citations linked for this taxon yet.

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Source: Wikipedia

Northern metalmark
Vulnerable
Vulnerable (NatureServe)[1]
Scientific classification Edit this classification
Kingdom: Animalia
Phylum: Arthropoda
Clade: Pancrustacea
Class: Insecta
Order: Lepidoptera
Family: Riodinidae
Genus: Calephelis
Species:
C. borealis
Binomial name
Calephelis borealis
(Grote & Robinson, 1866)[2]
Synonyms
  • Nymphidia borealis Grote & Robinson, 1866
  • Calephelis geda Scudder, 1876

Calephelis borealis, commonly known as the northern metalmark, is a butterfly of the family Riodinidae endemic to the United States.

Distribution and habitat

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One of the few representatives of the usually-tropical Riodinidae in eastern North America, it ranges through western Connecticut south through west-central Pennsylvania, as well as the central Appalachians and Ohio River Valley. Isolated populations are also found in southwest Missouri, Arkansas and eastern Oklahoma. The habitat consists of open woodland streams near serpentine, shale or limestone barrens.

Description

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The wingspan is 29–32 mm. Adults are on wing from mid-June to late July in one generation per year.

Diet

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The larvae feed on the leaves of Senecio obovatus and possibly Senecio aureus and Erigeron philadelphicus. Adults feed on nectar from flowers including butterflyweed, white sweet clover, goldenrod, ox-eye daisy, sneezeweed, and yarrow.[3]

The species overwinters in the larval stage in leaf litter.[citation needed]

Conservation

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The species is listed as endangered in the Connecticut by state authorities,[4] and vulnerable globally by The Nature Conservancy.[1]

References

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Wikimedia Commons has media related to Calephelis borealis.
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Wikispecies has information related to Calephelis borealis.
  1. ^ a b https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.107560/Calephelis_borealis
  2. ^ "Calephelis". Nic.funet.fi. Retrieved 17 March 2022.
  3. ^ "Northern Metalmark Calephelis borealis (Grote & Robinson, 1866) | Butterflies and Moths of North America". Butterfliesandmoths.org. Retrieved 17 March 2022.
  4. ^ "Archived copy" (PDF). Archived from the original (PDF) on 2018-06-12. Retrieved 2017-11-03.{{cite web}}: CS1 maint: archived copy as title (link)


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