Erynnis lucilius
(Scudder & Burgess, 1870)
Columbine Duskywing
Erynnis lucilius, the columbine duskywing, is a small ( Hesperiidae) native to northeastern North America. have a wingspan of 21–29 mm and appear in shades of brown. The is associated with rocky deciduous woodlands and ravines, where its larvae feed on columbine (Aquilegia) leaves. Two occur annually in eastern , with adults active from early May to mid-June.
Pronunciation
How to pronounce Erynnis lucilius: //ɛˈrɪn.nɪs luˈsɪl.i.us//
These audio files are automatically generated. While they are not always 100% accurate, they are a good starting point.
Identification
Distinguished from other duskywings by association with columbine plants and specific of rocky deciduous woodlands with ravines and gullies. Males can be identified by the costal fold with yellow scent ; females by scent scales on the 7th abdominal segment. Precise separation from often requires examination of genitalia or detailed wing pattern analysis.
Images
Habitat
Rocky and deciduous woodland forests, particularly in ravines and gullies. Prefers natural shady areas with abundant leafy vegetation. Associated with containing the larval plant, columbine (Aquilegia).
Distribution
North America from southern Quebec to Manitoba, south to the northeastern United States. Present in Vermont and other northeastern states.
Seasonality
Two in eastern : active from early May to mid-June. Hibernation occurs in the larval or pupal stage.
Diet
Larvae feed on leaves of columbine (Aquilegia). consume flower nectar and have been observed pollinating plants while feeding.
Host Associations
- Aquilegia - larval Columbine ; larvae feed on leaves
Life Cycle
laid singly on underside of columbine leaves. Larvae hatch and consume surrounding foliage, resting in shade of plants. Larvae continue feeding until fully mature, then enter hibernation before pupating. emerge, feed on nectar, mate, and females lay eggs on plant leaves.
Behavior
exhibit rapid, darting typical of skippers. Males likely perch to await females. Adults visit flowers for nectar. Larvae rest in shade of plants between feeding periods.
Ecological Role
function as while feeding on nectar. Larvae are herbivores that consume columbine foliage. Serves as prey for various .
Human Relevance
No significant direct economic impact. Contributes to pollination services in woodland . Used as for healthy deciduous woodland .
Similar Taxa
- Erynnis brizoSimilar brown coloration and preferences; distinguished by plant association and geographic range
- Erynnis juvenalisOverlapping range and appearance; E. juvenalis has one or two dots on hindwing not present in E. horatius, but separation from E. lucilius requires careful examination
- Erynnis horatiusSimilar appearance; flies throughout summer unlike spring-flying E. juvenalis, but E. lucilius distinguished by columbine association
More Details
Conservation Status
Not formally assessed by major conservation bodies, but dependent on intact deciduous woodland with native columbine . Habitat loss and fragmentation likely threaten local populations.
Research Needs
Detailed studies, precise distribution mapping, and clarification of separation from similar Erynnis in areas of sympatry would improve understanding of this species.