Western Cloudywing
Thorybes diversus Bell,1927
Family: Hesperiidae
Subfamily: Pyrginae
Identification: Upperside is dull brown with small pale spots. Males lack a costal fold. Underside is dull brown with gray scaling at margins; hindwing with indistinct dark bands.
Wing Span: 1 1/4 - 1 1/2 inches (3.2 - 3.8 cm).
Life History: To await females, males perch in small forest openings. Eggs are laid singly on the host plant.
Flight: One brood from June-July.
Caterpillar Hosts: Cow clover (Trifolium wormskjoldii) in the pea family (Fabaceae).
Adult Food: Flower nectar.
Habitat: Small openings in coniferous forests.
Range: Local and scarce. South Cascade mountains of Oregon and the Sierra Nevada of California.
Conservation: Seems to require open forest understory in yellow pine forests. Forest succession or replacement due to fire suppression may be a threat.
NCGR: G3 - Very rare or local throughout its range or found locally in a restricted range (21 to 100 occurrences). (Threatened throughout its range).
Management Needs: None reported.
Comments: NULL
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Verified Sightings
Displaying 1 - 24 of 51 verified sightings
Observation date: Jun 14, 2022
Submitted by: glennfine
Region: Siskiyou County, California, United States
Verified by: Ken Davenport
Verified date: Aug 10, 2022
Observation date: Jun 14, 2022
Submitted by: glennfine
Region: Siskiyou County, California, United States
Verified by: Ken Davenport
Verified date: Aug 10, 2022
Observation date: Jun 16, 2018
Submitted by: Mark Salvato
Region: Josephine County, Oregon, United States
Verified by: Ken Davenport
Verified date: Oct 19, 2021
Observation date: Jun 16, 2021
Submitted by: glennfine
Region: Siskiyou County, California, United States
Verified by: Ken Davenport
Verified date: Jun 17, 2021
Observation date: Jun 03, 2021
Submitted by: ASchmierer
Region: Del Norte County, California, United States
Verified by: Ken Davenport
Verified date: Jun 06, 2021
Observation date: Jun 28, 2019
Submitted by: ncrosbyrd
Region: Oregon, United States
Verified by: Ken Davenport
Verified date: Jul 14, 2019
Observation date: Jul 10, 2007
Submitted by: RaisingButterfl...
Region: Madera County, California, United States
Verified by: BAMONA
Verified date: Nov 28, 2011
Observation date: Jun 21, 2011
Submitted by: Ken Davenport (Ken Davenport)
Region: Madera County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 01, 2011
Observation date: unknown
Submitted by: paulopler (Paul Opler)
Region: United States
Verified by: BAMONA
Verified date: Sep 06, 2010
Observation date: Jul 04, 1989
Submitted by: legacy.reporter (Richard Kelson)
Region: Tehama County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Aug 02, 2010
Observation date: Jul 04, 1989
Submitted by: legacy.reporter (Richard Kelson)
Region: Tehama County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Aug 02, 2010
Observation date: Jun 28, 1977
Submitted by: legacy.reporter (Charles Sekerman)
Region: Siskiyou County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 07, 2010
Observation date: Jul 20, 1969
Submitted by: paulopler (Paul Opler)
Region: Siskiyou County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 06, 2010
Observation date: Jul 23, 1969
Submitted by: paulopler (Paul Opler)
Region: Siskiyou County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 06, 2010
Observation date: Jun 27, 1967
Submitted by: legacy.reporter (N. La Due)
Region: El Dorado County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 06, 2010
Observation date: Jun 16, 1999
Submitted by: legacy.reporter (Jeffrey Glassberg)
Region: Del Norte County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jan 05, 2010
Observation date: Jul 05, 1963
Submitted by: legacy.reporter (C. Don MacNeill)
Region: Trinity County, California, United States
Verified by: legacy.verifier (William H. Howe)
Verified date: Dec 17, 2009
Observation date: Jun 10, 1961
Submitted by: legacy.reporter (J. W. Tilden)
Region: Tuolumne County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Oct 16, 2009
Observation date: May 31, 2000
Submitted by: legacy.reporter (Richard V. Kelson)
Region: Tuolumne County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jun 11, 2009
Observation date: Jun 08, 1992
Submitted by: legacy.reporter (Kilian Roever)
Region: Madera County, California, United States
Verified by: legacy.verifier (Kilian Roever)
Verified date: Jun 11, 2009
Observation date: May 23, 2007
Submitted by: Ken Davenport (Ken Davenport)
Region: Mariposa County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jun 11, 2009
Observation date: Jun 08, 1992
Submitted by: Ken Davenport (Ken Davenport)
Region: Madera County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jun 11, 2009
Observation date: Jul 03, 1991
Submitted by: Ken Davenport (Ken Davenport)
Region: Mariposa County, California, United States
Verified by: Ken Davenport (Ken Davenport)
Verified date: Jun 11, 2009
Observation date: Jun 10, 1961
Submitted by: legacy.reporter (J. W. Tilden)
Region: Tuolumne County, California, United States
Verified by: legacy.verifier (J. W. Tilden)
Verified date: Jun 11, 2009
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