Schreckensteinia erythriella

Bristle-legged Moth
Schreckensteinia erythriella

POHL: 50-0001
MONA: 2507
GenBank: 1888670

Identification:
Head: Metallic brassy gray, slightly coppery depending on light. Nose cone (palpi) short, yellowish; tip dark.
Antenna: Short, not reaching mid-wing. Bronzy gray.
Thorax: Collar dark. Thorax wide, extending over wing bases; metallic brassy gray. Each side extension, plus the longer tip of thorax proper are rounded. Thorax tip lighter in colour, sometimes almost white.
Wings: Long, narrow with sharp pointed tips, extending well past abdomen. Metallic brassy gray, slightly coppery depending on light. A faint lighter line along the inner margin from tip of thorax to tip of abdomen. Fringe brownish-gray. Hind-wings more reddish-gray, fringe very long, same colour. Some reports that one sex is lighter coloured than the other.
Legs: Reddish-brown to light gray with some yellowish-white scaling, especially on thighs (femora). Hind shin (tibiae) has two sets of very long spines. Spines sometimes break off. Moth usually rests with hind legs elevated.
Abdomen: Short; same colour as wings.

Similar Species: Our only other Schreckensteinia festaliella has cream stripes on the wings.

Size: 5 to 6 mm long. 10 to 12 mm wing span

Habitat: Forest edges, dry meadows with sumac.

Food: Adults only found on Fleabane Erigeron, Black-eyed Susan Rudbeckia and Flattop Goldenrod Euthamia graminifolia. Larvae feed on buds and fruit of Sumac Rhus.

Flight Time: May to August.

Life Cycle: Two generations per year. Adults day-flying and also attracted to lights at night. Larvae: dark green with a pale brown head. Abdominal legs thin, short; prolegs thin and long. Reddish frass. Pupates inside a loosely woven mesh or lace cocoon.

Comments: Rare. 2 from Toronto area in Aug, 2012 and May 2013. Guelph in Aug, 2010. More common in Essex County.

Synonyms: Clemens 1860
Chrysocorys erythriella
Note: Curtis in 1833 first used the name Chrysocorys in Entomologist Magazine, Vol. 1, later decided it was a synonym of Schreckensteinia by Hubner.

References:
Proceedings of the Academy of Natural Sciences of Philadelphia, 1860 by Clemens, Vol. 12, pp. 171 to 172.
Entomologische Zeitung, 1876, Vol. 37 by Frey & Boll, pp. 214 to 215.
United States Dept. Agriculture, 5th Report Entomological Commission, 1890, Bulletin #7 by Packard, pg. 665.
Tineina of North America, 1872 by Clemens, pp. 132 to 133: Same as original description.
Illinois Biological Monographs, 1915, Vol. 2 #1 by Fracker.
Cornell University Agricultural Experiment Station, 1923, Memoir #68 by Forbes, pp. 357 to 360.

Types:
Holotype as Chrysocoris erythriella by Clemens, 1860. Type Locality: probably Pennsylvania. In the Academy of Natural Sciences, Drexel University, Philadelphia, Pennsylvania. Clemens Type #91.