Erynnis montanus is a dark brown duskywing from East Asia that flies only in spring. It does not live in North America, so a duskywing photographed in the US is one of the native species such as Juvenal's or Propertius Duskywing.
Appearance
- Appearance
- Wingspan about 1.4–1.7 in (35–42 mm). Brown, with purplish-gray bark-like mottling on the forewing and a few yellow-orange spots on the hindwing. Females have a broad pale band across the forewing.
Look-alikes
Where it lives
- Typical habitats
- woodland trails
- forest edges
- clearings
- Range
- East Asia: Japan, the Korean Peninsula, China, Taiwan, and the Russian Far East (Amur and Ussuri regions). Not found in the US.
- Preferred conditions
- Sunny edges and clearings in many kinds of forest, up to the upper tree line.
Behavior
- Activity
- One brood a year; adults fly in spring (May–June in the Russian Far East, from late March in warmer parts of Japan).
Life cycle
- Caterpillar food plants
- Caterpillars feed on oaks, including Mongolian oak (Quercus mongolica).
Conservation
- IUCN Red List
- NENot EvaluatedNot yet assessed
More species to explore
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