Moths of North Carolina
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12 NC Records

Lygropia rivulalis Hampson, 1898 - Bog Lygropia Moth

Lygropia rivulalisLygropia rivulalisLygropia rivulalis
Taxonomy
Superfamily: Pyraloidea Family: CrambidaeSubfamily: PyraustinaeTribe: SpilomeliniP3 Number: 80a0929 MONA Number: 5250.00
Identification
Field Guide Descriptions: Beadle and Leckie (2012)Online Resources: MPG, BugGuide, iNaturalist, Google, BAMONA, GBIF, BOLD                                                                                 
Adult Markings: This is a very distinctive species that has a dull white to pale yellowish-white ground color on both the forewing and hindwing. Both wings have a complex, reticulated pattern of dark brown to brownish-black lines that often anastomose to create either irregular or roughly oval patches of ground color. The subterminal region has a pair of transverse lines that run nearly parallel to one another, but diverge slightly towards the costa. The fringe is checkered with brown and dull white, and there is an interrupted dark line near the base that parallels a solid dark terminal line. The abdomen is mostly dull white with thin, dark-brown crossbands.
Wingspan: 17 mm (Beadle and Leckie, 2012).
Adult ID Requirements: Identifiable from good quality photos of unworn specimens.
Immatures and Development: The larval life history is undocumented.
Distribution in North Carolina
Distribution: Lygropia rivulalis is found throughout much of the eastern and central U.S. and adjoining areas of southern Canada, including Manitoba, Ontario, Quebec, New Brunswick, Nova Scotia and Prince Edward Island. In the U.S., the range extends from Maine southward to central Georgia, and westward to central Texas, central Oklahoma, eastern Kansas, central Nebraska, eastern South Dakota and eastern North Dakota. This species is uncommon or absent from most areas of the southeastern Coastal Plain. As of 2023, all of our records are from the Piedmont and lower-elevations in the Blue Ridge.
County Map: Clicking on a county returns the records for the species in that county.
Flight Dates:
 High Mountains (HM) ≥ 4,000 ft.
 Low Mountains (LM) < 4,000 ft.
 Piedmont (Pd)
 Coastal Plain (CP)

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