LepidopteraLycaenidae – Blues, Coppers, Hairstreaks, Harvesters

Acmon Blue - Hodges#4380

Plebejus acmon

This record describes Plebejus acmon (species). Recorded family: Lycaenidae. Recorded order: Lepidoptera.

Identification and Appearance

Acmon Blue - Hodges#4380 - Plebejus acmon
Contributed by Robin McLeod; Additional contributions by cotinis , Steve Nanz , Lynette Elliott , Hartmut Wisch , Harsi S. Parker

Male distinguished from the similar Lupine Blue (called Plebejus lupini by Nearctica.com but Icaricia lupini by CBIF) by the paler blue upperside of wings, and the absence of a dark discal spot on the upperside of the hindwings.

Classification

Kingdom
Animalia
Phylum
Arthropoda
Class
Insecta
Order
Lepidoptera (Butterflies and Moths)
Superfamily
Papilionoidea
Family
Lycaenidae (Blues, Coppers, Hairstreaks, Harvesters)
Subfamily
Polyommatinae
Genus
Plebejus

Imported taxonomy record. Source availability varies; see the source references and editorial policy below.

Habitat and Range

Geographic Range

Restricted mostly to California and Oregon, whereas the range of the similar Lupine Blue extends over most of western US and adjacent parts of Canada.

Additional species information

Species notes from the sources

Etymology: Acmon is the name of one of a pair of mischevious monkey-like characters ( Cercopes , see also Wikipedia ) in Greek/Roman mythology.

About Butterflies and Moths: the wider group

Order-level background for Lepidoptera, the group containing Plebejus acmon. Species-specific details appear above.

Group overview

Lepidoptera includes approximately 180,000 described species of butterflies and moths. Moths outnumber butterflies roughly 10:1. The monarch butterfly's eastern population has declined by more than 80% since the mid-1990s, and the western population by over 95% since the 1980s. The IUCN lists the migratory monarch as Vulnerable.

Ecological role of the group

Butterflies and moths are essential indicators of ecosystem health. As caterpillars, they are a primary food source for birds - a single nest of blue tit chicks requires ~10,000 caterpillars. Adult moths pollinate many night-blooming plants.

Economic and practical significance of the group

Lepidoptera are critical pollinators. In Europe, grassland butterfly species have declined by almost 50% since the early 1990s. In the UK, three-quarters of butterflies are in decline. In the U.S., five butterfly species have gone extinct since 1950, with 29 listed as endangered.

Recorded sources for this group: IUCN Red List, Xerces Society, USFWS, PNAS, WWF. Imported estimates may describe particular regions or reporting periods.

Explore Lepidoptera families and species →

Photos of Acmon Blue - Hodges#4380 (5)

Acmon Blue - Hodges#4380 - photo 1
Contributed by Robin McLeod; Additional contributions by cotinis , Steve Nanz , Lynette Elliott , Hartmut Wisch , Harsi S. Parker
Acmon Blue - Hodges#4380 - photo 2
Contributed by Robin McLeod; Additional contributions by cotinis , Steve Nanz , Lynette Elliott , Hartmut Wisch , Harsi S. Parker
Acmon Blue - Hodges#4380 - photo 3
Contributed by Robin McLeod; Additional contributions by cotinis , Steve Nanz , Lynette Elliott , Hartmut Wisch , Harsi S. Parker
Acmon Blue - Hodges#4380 - photo 4
Contributed by Robin McLeod; Additional contributions by cotinis , Steve Nanz , Lynette Elliott , Hartmut Wisch , Harsi S. Parker
Acmon Blue - Hodges#4380 - photo 5
Contributed by Robin McLeod; Additional contributions by cotinis , Steve Nanz , Lynette Elliott , Hartmut Wisch , Harsi S. Parker

Photo credits: Contributed by Robin McLeod; Additional contributions by cotinis , Steve Nanz , Lynette Elliott , Hartmut Wisch , Harsi S. Parker

Frequently Asked Questions About Acmon Blue - Hodges#4380

What is Acmon Blue - Hodges#4380?

Acmon Blue - Hodges#4380 (Plebejus acmon) is a species in the family Lycaenidae, within the order Lepidoptera.

How do you identify Acmon Blue - Hodges#4380?

Male distinguished from the similar Lupine Blue (called Plebejus lupini by Nearctica.com but Icaricia lupini by CBIF) by the paler blue upperside of wings, and the absence of a dark discal spot on the upperside of the hindwings.

Where is Acmon Blue - Hodges#4380 found?

Range: Restricted mostly to California and Oregon, whereas the range of the similar Lupine Blue extends over most of western US and adjacent parts of Canada.

How we use and review source data. Source count does not imply independent verification.

Photo credits: Contributed by Robin McLeod; Additional contributions by cotinis , Steve Nanz , Lynette Elliott , Hartmut Wisch , Harsi S. Parker. Contributors retain copyright over their individual contributions.