Heppner (2004) explained the history and nomenclature regarding the longtime misapplication of Euchlaena pectinaria for the North American species E. deductaria. True pectinaria is a synonym of the European species currently known as Odontopera bidentata. Moth Photographers Group has adopted deductaria for the N. Am. species, and BugGuide (with a misspelling) also notes the issue.

Heppner (2004): Heppner, J.B., 2004. Notes on Euchlaena 'pectinaria' in the United States. Lepidoptera News, 2002(3-4): 6-7. (Citation from MPG)
Publication link: http://troplep.org/cont-ln.htm,
Article PDF direct link: http://www.troplep.org/OCR%202002%20No.%203-4%20Sept-Dec.pdf

MPG: http://mothphotographersgroup.msstate.edu/species.php?hodges=6735