A Revision of Lasionycta Aurivillius (Lepidoptera: Noctuidae) for North America and notes on Eurasian species, with descriptions of 17 new species, 6 new subspecies, a new genus, and two new species of Tricholita Grote Author Crabo, Lars Washington State University, Bellingham, United States of America Author Lafontaine, Donald Agriculture and Agri-Food Canada, Ottawa, Canada text ZooKeys 2009 2009-12-18 30 30 1 156 journal article 10.3897/zookeys.30.308 ca35c50f-b0c5-4032-b06d-f71b00710c8d 1313–2970 576576 C26E1A82-0DD4-48EF-865C-9D8AA788B739 Lasionycta phaea species-group The male genitalia of the L . phaea species-group resemble those of the L . skraelingia speciesgroup, but the uncus is broadly flattened and spatulate with a squared-off apex and the digitus is longer, extending below the valve. Females have a distinctly different bursa than those of the L . skraelingia species-group. Th e corpus bursae is ovoid, not rounded, with less sclerotized signa. Th e appendix bursae is attached to the dorsal corpus bursae rather than to the left side and extends dorsally and to the left. Its surface is grooved producing a weak spiral of approximately 1.5 turns. Th e male antenna is beadlike ( L . phaea ) to biserrate (1.5× as wide as shaft in two Asian species ( Lafontaine and Kononenko 1988 )). Lasionycta phaea is the only North American member of the species-group. Three additional species, L . alpicola Lafontaine & Kononenko , L . buraetica Kononenko , and L . corax Kononenko , are found in central and western Asia ( Lafontaine and Kononenko 1988 ). The species in this species-group were included in the L . skraelingia species-group by Lafontaine and Kononenko (1988) . In addition to the structural differences between the species-groups, L . phaea fails to group with L . skraelingia and L . taigata on CO1 distance analysis, instead clustering near L . secedens ( Fig 247 ).