Moths of North Carolina
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View PDFGeometridae Members: Spargania Members: 19 NC Records

Spargania magnoliata Guenée, [1858] - Double-banded Carpet

Spargania magnoliata
Taxonomy
Superfamily:
Geometroidea		 Family:
Geometridae		Subfamily:
Larentiinae		Tribe:
Hydriomenini		P3 Number:
91a0463		 MONA Number:
7312.00
Comments: This is a very large genus in the Neotropics with likely well over 100 species. In North America, five have been recorded and only one occurs in North Carolina.
Species Status: Specimens from North Carolina barcode with those from the Eastern part of the country. Out West S. magnoliata forms a complex with several additional species.
Identification
Field Guide Descriptions: Covell (1984); Beadle and Leckie (2012)Online Resources: MPG, BugGuide, iNaturalist, Google, BAMONA, GBIF, BOLDTechnical Description, Adults: Forbes (1948)Technical Description, Immature Stages: Wagner et al. (2001)                                                                                 
Adult Markings: Adults have green forewings that perfectly match the mossy habitats found at high elevations; pinned specimens, however, rapidly lose the greenish tinge. Sexes are similar. Adults are not likely to be confused with any other species in our area.
Adult Structural Features: Genitalic structures are diagnostic, separating Spargania from all other similar species.
Structural photos
Adult ID Requirements: Identifiable from good quality photos of unworn specimens.
Immatures and Development: The caterpillar is green with pinkish lateral areas matching the petioles of its foodplants (Wagner et al, 2001).
Larvae ID Requirements: Identifiable from good quality photos, especially where associated with known host plants.
Distribution in North Carolina
Distribution: Restricted to the Mountain in North Carolina
County Map: Clicking on a county returns the records for the species in that county.
Spargania magnoliataAlamance Alexander Alleghany Anson Ashe Avery Beaufort Bertie Bladen Brunswick Buncombe Burke Cabarrus Caldwell Camden Carteret Caswell Catawba Chatham Cherokee Chowan Clay Cleveland Columbus Craven Cumberland Currituck Dare Davidson Davie Duplin Durham Edgecombe Forsyth Franklin Gaston Gates Graham Granville Greene Guilford Halifax Harnett Haywood Henderson Hertford Hoke Hyde Iredell Jackson Johnston Jones Lee Lenoir Lincoln Macon Madison Martin McDowell Mecklenburg Mitchell Montgomery Moore Nash New%20Hanover Northampton Onslow Orange Pamlico Pasquotank Pender Perquimans Person Pitt Polk Randolph Richmond Robeson Rockingham Rowan Rutherford Sampson Scotland Stanly Stokes Surry Swain Transylvania Tyrrell Union Vance Wake Warren Washington Watauga Wayne Wilkes Wilson Yadkin Yancey
Flight Dates:
 High Mountains (HM) ≥ 4,000 ft.
 Low Mountains (LM) < 4,000 ft.
 Piedmont (Pd)
 Coastal Plain (CP)

Click on graph to enlarge 		Image showing flight dates by month for High Mountains greater than 4,000 feet, Low Mountains, Piedmont, and Coastal Plain: adults.
Flight Comments: There are two broods, May and July with a few stragglers in intervening months.
Habitats and Life History
Habitats: Open areas in mountain hardwood habitat where the foodplants, Oenothera and Fireweed grow. Rarely found below 3000 feet.
Larval Host Plants: Larvae are stenophagous, reportedly feeding on evening-primrose (Oenothera) and Fireweed (Chamaenerion angustifolium) (Wagner et al., 2001). - View
Observation Methods: Adults come readily to lights but not to bait nor are they active during the day.
Wikipedia
See also Habitat Account for Montane Forblands and Successional Fields
Status in North Carolina
Natural Heritage Program Status: [SR]
Natural Heritage Program Ranks: GNR SNR [S2S3]
State Protection: Has no legal protection, although permits are required to collect it on state parks and other public lands.
Comments: This species depends on open, herbaceous habitats in the Mountains, at least some of which may be naturally maintained by fire. Increased frequency of wildfires in the Mountains resulting from global climate change may help expand its habitats. However, as a species adapted to cool, montane habitats, increased warming may also lead to its elimination from some areas, particularly at lower elevations.

 Photo Gallery for Spargania magnoliata - Double-banded Carpet

Photos: 1
Spargania magnoliataRecorded by: JBS on 2000-06-01
Ashe Co.
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