Lasionycta luteola

(Smith, 1893)

Lasionycta luteola is a small noctuid with a wingspan of approximately 27 mm. It inhabits alpine tundra environments in northwestern North America, ranging from northern Washington and southwestern Alberta northward to southwestern Yukon. are active from mid-July to mid-August and exhibit a distinctive activity pattern: while predominantly , they also fly during daylight hours. The has been observed feeding on nectar of Silene acaulis, a cushion-forming alpine plant.

Pronunciation

How to pronounce Lasionycta luteola: /ˌlæsiˈɒnɪktə luːtiˈoʊlə/

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Identification

Wingspan of approximately 27 mm distinguishes it from larger noctuid . Restricted to alpine tundra and specific geographic range (northwestern North America) provides important context for identification. active mid-July to mid-August; activity in addition to may aid field recognition. Similar species within Lasionycta require detailed examination of genitalia and wing pattern for definitive identification.

Habitat

Alpine tundra. This high-elevation environment is characterized by low-growing vegetation, short growing seasons, and cold temperatures.

Distribution

Northwestern North America: from northern Washington and southwestern Alberta northward to southwestern Yukon. Distribution records confirm presence in North America.

Seasonality

on wing from mid-July to mid-August. This represents the primary period for this single-brooded in its alpine .

Diet

feed on nectar of Silene acaulis (moss campion), a cushion plant of alpine environments. Larval diet unknown.

Host Associations

Silene acaulis - nectar source feeding observed on this alpine cushion plant

Life Cycle

Complete with , larva, pupa, and stages. Specific details of stages and duration not documented. Adults overwinter in unknown stage; spring pattern not described.

Behavior

are predominantly but also fly during the day. This mixed diel activity pattern is notable among noctuid and may relate to the extended daylight conditions of high-latitude alpine environments during the period.

Ecological Role

nectar feeding on Silene acaulis suggests potential role as of this alpine plant. Specific ecological functions of larvae unknown.

Human Relevance

No documented economic or agricultural significance. of interest to lepidopterists and researchers studying alpine insect faunas.

Similar Taxa

Other Lasionycta species contains multiple similar-appearing ; L. luteola distinguished by geographic range, preference, and specific wing characteristics requiring expert examination

More Details

Taxonomic history

Originally described as Scotogramma luteola by Smith in 1893, later transferred to Lasionycta. The genus Lasionycta was revised for North America by Lafontaine and Schmidt in 2009 (ZooKeys 30), which included this among 43 treated species with 17 newly described.

Conservation status

Not formally assessed; restricted alpine may confer vulnerability to climate change impacts on tundra .