Camberwell Beauty (Nymphalis antiopa)
Brown HairstreakThecla betulae (Linnaeus, 1758)Brown Hairstreak
Young caterpillar of a Brown Hairstreak (Thecla betulae) on a Blackthorns (Prunus spinosa) branch in Bonn-Kessenich under ultraviolet light
After finding a Brown Hairstreak (Thecla betulae) caterpillar on a Blackthorn (Prunus spinosa) branch in our garden that afternoon, I searched for more Brown Hairstreaks (Thecla betulae) caterpillars that evening using a flashlight with ultraviolet light. Although I found another, much larger caterpillar on the Blackthorn (Prunus spinosa), I found only the specimen pictured here, which I was already familiar with.
Photograph:
Ingo DanielsIngo Daniels; Bonn, 
GermanyBonn, GermanyGermany (10. May 2026, 10:07 PM)