Fauna
Insect

Scalloped Hook-tip

Falcaria lacertinaria

Scalloped hook-tip moths possess distinctly notched, sickle-curved forewings that resemble withered, torn foliage when resting motionless among branches. Adults fly in two overlapping generations from late spring through late summer, traversing temperate woodlands and heathlands after nightfall. The humped, twig-like caterpillars feed on birch foliage before spinning a protective silk cocoon within curled leaves to pupate through the winter.

NocturnalCamouflageWoodland
Scalloped Hook-tip reference1 / 7
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Least ConcernConservation statusIUCN Red List categoriesLCNTVUENCREWEXLeast ConcernRed List categories, explained →
Key facts
Diet & preySilver birch leaves, Downy birch leaves, Alder leaves
Predators
  • Bats
  • Insectivorous birds
  • Orb-weaver spiders
ThreatsLoss of mature birch woodlands, pesticide use, and artificial light pollution.
HabitatsDeciduous woodlands, birch scrub, heathlands, and mossy bogs.
Life spanAbout 1 year (adults live 1–2 weeks)
Classification
  1. OrderLepidoptera
  2. FamilyDrepanidae
  3. GenusFalcaria
  4. SpeciesFalcaria lacertinaria
Range & activity
Range data is not available yet.
Safe observation
Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
Safe to observe at a normal distance.
Responsible observation
  • Light Trapping: Set up a light trap near birch stands on warm, overcast summer nights.
  • Daytime Searching: Inspect tree trunks and lower birch foliage where adults roost camouflaged.
Related species
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Found in Collections

Species set

Moonlight Marvels

Scalloped Hook-tip is found in this collection. Identify it in Fauna to fill this slot and continue your progress.

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