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| Juvenal's Duskywing |
Latin
Name: Erynnis juvenalis |
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Genus: Erynnis Species: juvenalis |
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Comments: |
| A common spring species, Juvenal's Duskywing darts up and down sunlit trails and explores adjacent open sites with a quick, low flight. It frequently visits flowers or basks on bare ground with wings spread. Males perch on low vegetation and actively pursue passing objects. They occasionally puddle at damp sand or gravel. The larvae construct individual shelters on the host by folding over leaves with silk. |
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Life
Cycle: |
Broods: |
single generation |
Egg: |
pale green, laid singly on host leaves |
Larva: |
pale green with thin, light lateral stripe and reddish brown head; head capsule has outer row of light orange spots |
Host Plants: |
various oaks including White Oak, Post Oak and Black Oak |
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Host
Plants: |
Host
Plants: |
various oaks including White Oak, Post Oak and Black Oak |
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Habitat: |
Habitat: |
oak woodlands, forest edges, woodland clearings, roadsides and utility easements |
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Wingspan: |
Inches: |
1.2 - 1.75 |
Centimeters: |
3 - 4.4 |
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Appearance: |
Sexes: |
similar, although female is lighter and more heavily patterned with larger forewing spots |
Compare: |
Horace's Duskywing lacks two light spots on hindwing beneath. |
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| Markings: |
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Above:
- dark brown; forewing has small cluster of tiny clear spots near wingtip and one at end of cell, and is heavily patterned with brown, gray, black and tan; female has increased gray scaling and heavier pattern
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Below:
- brown, lightening toward wing margin; hindwing has two small, light spots along leading margin
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Abundance: |
occasional to common |
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Map Legend: Resident (green) | Stray
(Red) |