Species Idia denticulalis - Toothed Idia - Hodges#8333

8333

Idia denticulalis (Harvey, 1875}

Pseudaglossa denticulalis Harvey, 1875

DENTICULALIS: from the Latin "dens, dentis" (tooth, teeth); refers to the toothed lines on the forewing (and is the origin of the common name) but this characteristic is also present in several other species of Idia

apparently uncommon to rare throughout range, based on relative scarcity of Internet records

wingspan about 25 mm, based on photo by Jim Vargo at MPG

Adult: forewing shaded with light yellowish-gray or yellowish-brown; AM, PM, and ST lines with sharp irregular teeth; reniform spot represented by a small and indistinct dark arc with pale outline (sometimes faint or absent); diffuse dark patch in median area touches proximal edge of PM line at inner margin; hindwing similar color to forewing but slightly paler and with smoother lines

mostly northeastern United States and southeastern Canada: New Brunswick to North Carolina, west to Illinois, north to Ontario

two Internet records from Texas, presumably of a small population, as the species is not recorded on these three Texas moth lists: 1, 2, 3

although All-Leps shows a collection record from Florida, the species name is not on this Florida list by John Heppner

open moist or sandy woods; adults are nocturnal and come to light and bait [Handfield]

adults fly from April to September in Maryland; July and August in Quebec [Handfield]

unknown as of July 2009

Common Idia (Idia aemula) forewing has large pale reniform spot that contrasts against ground color of wing, and if dark shading is present in median area, it does not touch proximal edge of PM line

also see pinned adult images of ten other Idia species at MPG

Forbes, W.T.M., 1954. Lepidoptera of New York and Neighboring States, Part III [Noctuidae]. Cornell University. Agricultural Experiment Station Memoir, 329: 394 (1)

Handfield, Louis. 1999. Les Guides des Papillons du Quebec. Broquet. 662 pp.

Harvey, L.F., 1875. Observations on North American Moths - Second paper. Bulletin of the Buffalo Society of Natural Sciences. 2: 283

Moth Photographers Group (2)

The Barcode of Life Data Systems (BOLD) (3)

presence in Illinois; list (Illinois State Museum)

distribution in Canada list of provinces (U. of Alberta, using CBIF data)