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Digital Guide to Moth Identification

2071007046Nemoria bistriaria – Red-fringed Emerald Moth – Hübner, 1818

© Nolie Schneider
Description/
Field Marks:
At critical pre-emergence temperatures an intermediate green-brown form of Nemoria bistriaria will be induced with brown and green scales sprinkled across the wing in this manner. Nemoria lixaria is rarely seen north of SE Penna, and its seasonal darker form is melanic with charcoal black scales appearing along the pm. and am. lines and black shading on abdomen and wing fringes rather than the mocha brown form that appears in N. bistriaria. Given the locality and coloration there can be little doubt that this is an intermediate color form of Nemoria bistriaria, probably N. bistriaria siccifolia (in terms of Ferguson's subspecies). Neither N. mimosaria nor N. rubrifrontaria has a known seasonal color variant, and I think those are the only other two Nemoria that might be encountered in that part of Massachusetts. ~ John Gruber
References
Nemoria bistriaria
© Mike Boone
Nemoria bistriaria
© Arlene Ripley
Nemoria bistriaria
© Peter Aron
Nemoria bistriaria
© Larry Line
Nemoria bistriaria
© Nolie Schneider
Nemoria bistriaria
© Ron Votaw
Nemoria bistriaria
© Mark Dreiling - DNA
Nemoria bistriaria
© Carol Wolf
Nemoria bistriaria
LG – © Jim Troubridge
Nemoria bistriaria
22mm – © Jim Vargo
Nemoria bistriaria
22mm – © Jim Vargo

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