Sympistis major

Grote, 1881

Sympistis major is a noctuid native to the Pacific Northwest of North America, first described by Augustus Radcliffe Grote in 1881. The has undergone significant taxonomic revision: originally described as a of Oncocnemis riparia, it was elevated to full species status as Oncocnemis major in 1999 and transferred to the Sympistis in 2008. have a wingspan of 31–36 mm. Larvae are specialized feeders on Penstemon species.

Sympistis major by no rights reserved, uploaded by Ellyne Geurts. Used under a CC0 license.

Sympistis major by David Wikle, Canadian National Collection of Insects and Nematodes. Used under a CC BY 3.0 license.

CATALOGUE-BM-CI by Sir GEORGE F. HAMPSON, Bart.. Used under a Public domain license.

Pronunciation

How to pronounce Sympistis major: /sɪmˈpɪstɪs ˈmeɪdʒər/

These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.

Identification

No specific identification features distinguishing Sympistis major from related Sympistis are documented. The wingspan range of 31–36 mm and Pacific Northwest distribution may assist in narrowing identification possibilities.

Images

Appearance

have a wingspan of 31–36 mm. No additional morphological details are documented in available sources.

Habitat

Specific requirements are not documented. Based on larval plant associations, the likely occurs in areas supporting Penstemon fruticosus and related Penstemon species.

Distribution

Widely distributed in the Pacific Northwest of North America. Precise range boundaries are not documented.

Seasonality

Activity periods are not documented.

Diet

Larvae feed on Penstemon , particularly Penstemon fruticosus. feeding habits are not documented.

Host Associations

Penstemon fruticosus - larval plantprimary
Penstemon - larval plant-level association

Life Cycle

Larval stage feeds on Penstemon . Details of , pupal, and stages are not documented.

Behavior

No specific are documented.

Ecological Role

As a herbivore on Penstemon, larvae likely influence plant in their native range. The may serve as prey for . Specific ecological interactions are not documented.

Human Relevance

No documented human relevance. Not known to be an agricultural pest.

Similar Taxa

Oncocnemis ripariaFormerly considered as a ; distinguished by elevation to full status in 1999 and subsequent transfer to Sympistis in 2008

More Details

Taxonomic History

The has undergone multiple taxonomic changes reflecting evolving understanding of noctuid . Originally described as Oncocnemis riparia major (a ), it was elevated to Oncocnemis major by Crabo & Lafontaine in 1999, then transferred to Sympistis major by Lafontaine & Schmidt in 2008 based on phylogenetic and morphological evidence.