Moths of North Carolina
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Digrammia Members:
104 NC Records

Digrammia eremiata (Guenée, [1858]) - Three-lined Angle

Taxonomy
Superfamily: Geometroidea Family: GeometridaeSubfamily: EnnominaeTribe: MacariiniP3 Number: 910805.00 MONA Number: 6357.00 MONA Synonym: Semiothisa eremiata
Comments: One of 49 species in this genus recorded in North America (Ferguson, 2008), six of which occur in North Carolina. Digrammia eremiata, ordinata, and ocellinata were placed in the legume-feeding Eremiata Species Group by Ferguson.
Identification
Field Guide Descriptions: Covell (1984; as Semiothisa eremiata)Online Photographs: MPG, BugGuide, iNaturalist, Google, BAMONA, GBIF, BOLDTechnical Description, Adults: Forbes (1948); Ferguson (2008)Technical Description, Immature Stages: Ferguson (2008)                                                                                 
Adult Markings: A medium-sized, grayish- to violet-brown Geometrid. The antemedian, median, and postmedian lines are dark and usually conspicuous; the postmedian is typically more continuous than in ocellinata and ordinata, where it is usually represented by a chain or series of separate dark spots (Ferguson, 2008). The ground color is usually darker beyond the postmedian line, unlike in ordinata and ocellinata, where it may be as pale as in the medial and basal areas (Forbes,1948).
Adult Structural Features: Genitalia are distinctive in both sexes (described and illustrated in Ferguson, 2008). Antennae are simple in both sexes. Males have swollen hind tibiae.
Adult ID Requirements: Identifiable from good quality photos of unworn specimens.
Immatures and Development: Larvae are blue-green or reddish-brown, with a wide pale lateral stripe and a series of narrower pale stripes more dorsally. Pale intersegmental rings may also be prominent (see Ferguson, 2008, for a description and illustrations).
Larvae ID Requirements: Identifiable from good quality photos, especially where associated with known host plants.
Distribution in North Carolina
Distribution: Found primarily in the Coastal Plain and at least marginally in the Piedmont and Mountains. Host plants occur more widely and the species may eventually be found over a larger portion of the Piedmont and Mountains.
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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