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Digital Guide to Moth Identification

Genitalia Images
911407.006954Tetracis jubararia – October Thorn Moth – Hulst, 1886

Phil Huntley-Franck
Distribution: British Columbia to southern California, eastward to central Saskatchewan, southwestern Idaho and western Nevada, from ~ 500-7,400 ft. elev..
Seasonality
and Size:
Mid-August - late November. FWL ~ 17-26 mm.
Larva and
Host Plants:
Many known host plants include Alnus, Betula, Cornus, Populus, Ribes, Alder, Picea.
Similar Species: Separate from T. mosesiana in California coastal counties by genitalia and DNA. Elsewhere the absence of pale shading beyond the pm. line distinguishes this species from T. pallulata.
Taxonomic Notes: Formerly placed in the genus Synaxis. See: Clifford D. Ferris and B. Christian Schmidt. Revision of the North American Genus Tetracis and Synonymization of Synaxis with Descriptions of Three New Species. ZooTaxa 2347: 1-36 (2010) .pdf file.
References
Tetracis jubararia
Dick Wilson
Tetracis jubararia
John Davis
Tetracis jubararia
Dick Wilson - DNA
Tetracis jubararia
Jim Moore
Tetracis jubararia
Gary Anweiler
Tetracis jubararia
LG – Jim Troubridge
Tetracis jubararia
LG – Jim Troubridge
Tetracis jubararia
40mm – Jim Vargo

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