Species Erannis tiliaria - Linden Looper - Hodges#6665

6665

Winter Moth

Erannis tiliaria (Harris, 1841)

* phylogenetic sequence #196825

Two Erannis species are found in North America north of Mexico

Wingspan of males is 32-42 mm. (1)

FWL ≈ 17-25mm (2)

females are wingless(1)

Male: FW unicolorous yellowish brown, brown, or pale ochraceous salmon ● May have darker brown bands, basad of AM and distad of PM ● FW display considerable variability in color and degree of maculation ● HW pale grayish white, more or less evenly covered with widely spaced pale, grayish brown scales. (2)

Female: Wingless ● Head with black and white antennae ● Abdomen above tending to have two irregular longitudinal bands, with lateral spotting smaller than on dorsal bands ● Female's body tends to be rather variable in the size and number of the black spots. (2)

Alberta to Nova Scotia, south to Missouri, Georgia, Utah and Texas. Has disappeared from many of the eastern portions of its range in the past 20 years.

Flight period from late August into early December. Most specimens have been caught during October and November. (2)

Deciduous trees, including apple, ash, beech, birch, elm, linden, maple, oak, poplar, Prunus and Ribes. (3)

Overwinter as eggs(4)

Female crawl up the tree trunks and deposit their eggs singly or in small groups in bark crevices.(4)

One generation per year.(4)

larva; larva; spent pupa; adult male; adult female

Female fall cankerworms and Operophtera winter moths are also wingless.

Erannis vancouverensis