Butterflies and Moths of North America

collecting and sharing data about Lepidoptera


Idia occidentalis (Smith, 1884)
Family: Erebidae
Subfamily: Herminiinae
Identification: The forewings are pale yellow-brown, overlaid with dull sooty brown on the basal third and in a broad band across the post-media area. The outer edge of the postmedian band is well-defined and erratic, followed by a thin broken terminal line. The hindwings are similarly marked, but less well defined. The wing fringes are light brown. The entire pattern is poorly defined and "cloudy".
Wing Span: 2.6-3.4 cm
Life History:
Flight: May to October
Caterpillar Hosts:
Adult Food:
Habitat: dry open areas, arid native grasslands and badlands
Range: A western species; known from southern Alberta and BC south to Colorado, Arizona and California.
Conservation:
NCGR:
Management Needs:
Taxonomy Notes: None.

Verified Sightings

Displaying 1 - 13 of 13 verified sightings
Observation date: Aug 02, 2021
Submitted by: Dwaine Wagoner
Region: Natrona County, Wyoming, United States
Verified by: J_Martineau
Verified date: Aug 06, 2021
  Details
Observation date: Jul 17, 2021
Submitted by: Blue Swallowtail
Region: Adams County, Nebraska, United States
Verified by: J_Martineau
Verified date: Jul 18, 2021
  Details
Observation date: Jun 05, 2021
Submitted by: Blue Swallowtail
Region: Adams County, Nebraska, United States
Verified by: J_Martineau
Verified date: Jun 08, 2021
  Details
Observation date: Aug 02, 2020
Submitted by: J_Martineau
Region: Sheridan County, Wyoming, United States
Verified by: J_Martineau
Verified date: Jan 14, 2021
  Details
Observation date: Jun 14, 2017
Submitted by: Jim Eckert
Region: Graham County, Arizona, United States
Verified by: Jim Eckert
Verified date: Jul 02, 2017
  Details
Observation date: Sep 09, 2016
Submitted by: rdhealy1951@aol.com
Region: Yavapai County, Arizona, United States
Verified by: kellyrichers
Verified date: May 12, 2017
  Details
Observation date: Aug 09, 2016
Submitted by: treichard
Region: Anne Arundel County, Maryland, United States
Verified by: rogerdowner
Verified date: Aug 14, 2016
  Details
Observation date: Jul 17, 1999
Submitted by: AndrewPigniolo
Region: San Diego County, California, United States
Verified by: Robert Martin
Verified date: Dec 23, 2015
  Details
Observation date: Jul 13, 2015
Submitted by: Dwaine Wagoner
Region: Hot Springs County, Wyoming, United States
Verified by: J_Martineau
Verified date: Jul 16, 2015
  Details
Observation date: Aug 13, 2014
Submitted by: sseagrave
Region: Sheridan County, Wyoming, United States
Verified by: J_Martineau
Verified date: Feb 05, 2015
  Details
Observation date: Jul 26, 2014
Submitted by: J_Martineau
Region: Sheridan County, Wyoming, United States
Verified by: J_Martineau
Verified date: Dec 08, 2014
  Details
Observation date: Jul 15, 2014
Submitted by: J_Martineau
Region: Carbon County, Wyoming, United States
Verified by: J_Martineau
Verified date: Dec 03, 2014
  Details
Observation date: Jun 29, 2012
Submitted by: Josiah Gilbert
Region: San Luis Obispo County, California, United States
Verified by: kellyrichers
Verified date: Sep 25, 2012
  Details