Acmon Blue
Plebejus acmon (Westwood, [1851])
Family: Lycaenidae
Subfamily: Polyommatinae
Identification: Upperside of males blue with dark narrow border; female brown. Underside white with black spot pattern. Hindwing above and below with red-orange submarginal band.
Wing Span: 3/4 - 1 1/8 inches (2 - 2.9 cm).
Life History: Males patrol near hosts for females. Eggs are laid singly on leaves or flowers of host plants. Caterpillars feed on leaves, flowers, and developing seeds, and are tended by ants. Second-stage caterpillars hibernate.
Flight: Many flights from March-October.
Caterpillar Hosts: Various species of buckwheats (Eriogonum nudum), lupines (Lupinus), trefoils (lotus), and milkvetches (Astragalus).
Adult Food: Flower nectar.
Habitat: Desert, fields, prairie hills, weedy areas, road edges.
Range: Primarily California west of Sierra Nevada-Cascade Divide south to northern Baja California. Precise limits in neighboring Oregon and Nevada not ascertained.
Conservation: Not usually of conservation concern.
NCGR: G5 - Demonstrably secure globally, though it may be quite rare in parts of its range, especially at the periphery.
Management Needs: None reported.
Please donate!
We depend on donations to keep Butterflies and Moths of North America freely available. We want to express our gratitude to all who showed their support by making a contribution this year. You can donate to support this project at any time.
Advertise with us!
Do you have a product or service that you think would interest BAMONA users? If you would like to advertise on this website, contact us by email, or use the contact form and select the "Advertising" category.
Verified Sightings
Displaying 265 - 288 of 976 verified sightings
Observation date: Feb 07, 2020
Submitted by: sarabseth
Region: Santa Clara County, California, United States
Verified by: Ken Davenport
Verified date: Feb 09, 2020
Observation date: Oct 06, 2019
Submitted by: stevecary
Region: Mono County, California, United States
Verified by: Ken Davenport
Verified date: Feb 02, 2020
Observation date: Sep 08, 2019
Submitted by: stevecary
Region: Valencia County, New Mexico, United States
Verified by: stevecary
Verified date: Feb 02, 2020
Observation date: Jul 09, 2019
Submitted by: stevecary
Region: Colfax County, New Mexico, United States
Verified by: stevecary
Verified date: Jan 28, 2020
Observation date: Oct 06, 2019
Submitted by: glennfine
Region: Siskiyou County, California, United States
Verified by: Ken Davenport
Verified date: Jan 24, 2020
Observation date: Oct 06, 2019
Submitted by: glennfine
Region: Siskiyou County, California, United States
Verified by: Ken Davenport
Verified date: Jan 24, 2020
Observation date: Apr 29, 2019
Submitted by: glennfine
Region: Siskiyou County, California, United States
Verified by: Ken Davenport
Verified date: Jan 24, 2020
Observation date: Aug 21, 2019
Submitted by: dsperanza
Region: Montana, United States
Verified by: J_Martineau
Verified date: Jan 17, 2020
Observation date: Jul 12, 2019
Submitted by: J_Martineau
Region: Sheridan County, Wyoming, United States
Verified by: J_Martineau
Verified date: Dec 10, 2019
Observation date: Jul 06, 2019
Submitted by: Dwaine Wagoner
Region: Natrona County, Wyoming, United States
Verified by: J_Martineau
Verified date: Nov 19, 2019
Observation date: Nov 13, 2019
Submitted by: mstanek
Region: Los Angeles County, California, United States
Verified by: Ken Davenport
Verified date: Nov 14, 2019
Observation date: Nov 11, 2019
Submitted by: falco1
Region: San Bernardino County, California, United States
Verified by: Ken Davenport
Verified date: Nov 12, 2019
Observation date: Nov 10, 2019
Submitted by: MAKI
Region: Los Angeles County, California, United States
Verified by: Ken Davenport
Verified date: Nov 11, 2019
Observation date: Sep 12, 2019
Submitted by: alva043
Region: Doña Ana County, New Mexico, United States
Verified by: stevecary
Verified date: Nov 07, 2019
Observation date: Oct 15, 2019
Submitted by: Cactuswren1976
Region: New Mexico, United States
Verified by: stevecary
Verified date: Nov 07, 2019
Observation date: Sep 08, 2019
Submitted by: Joey Bom
Region: Tulare County, California, United States
Verified by: Ken Davenport
Verified date: Oct 05, 2019
Observation date: Sep 11, 2019
Submitted by: Joey Bom
Region: Los Angeles County, California, United States
Verified by: Ken Davenport
Verified date: Oct 05, 2019
Observation date: Sep 10, 2019
Submitted by: Joey Bom
Region: Los Angeles County, California, United States
Verified by: Ken Davenport
Verified date: Oct 05, 2019
Observation date: Sep 15, 2019
Submitted by: gregslak
Region: Los Angeles County, California, United States
Verified by: Ken Davenport
Verified date: Sep 19, 2019
Observation date: Sep 12, 2019
Submitted by: icosahedron
Region: Mendocino County, California, United States
Verified by: Ken Davenport
Verified date: Sep 16, 2019
Observation date: Sep 15, 2019
Submitted by: gregslak
Region: Los Angeles County, California, United States
Verified by: Ken Davenport
Verified date: Sep 15, 2019
Observation date: Sep 11, 2019
Submitted by: GI JAG
Region: San Diego County, California, United States
Verified by: Ken Davenport
Verified date: Sep 15, 2019
Observation date: Aug 24, 2019
Submitted by: Cactuswren1976
Region: Santa Fe County, New Mexico, United States
Verified by: stevecary
Verified date: Sep 03, 2019
Observation date: Aug 03, 2019
Submitted by: topper72
Region: Los Alamos County, New Mexico, United States
Verified by: stevecary
Verified date: Sep 03, 2019
- ‹ previous
- 12 of 41
- next ›