50 firebugs cluster on Norfolk lime tree
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- Firebugs numbered about 50 gathered on the sunny side of an old lime tree at a Norfolk farm, forming a bright, flame‑like cluster on the trunk.
- Firebugs are roughly a centimetre long, with ember‑red backs and bold, symmetrical black markings that differ from the softer patterns of cinnamon bugs.
- Firebugs aggregate on lime or mallow plants for mating and feeding, consuming seeds, aphids, and even dead relatives with their proboscis.
- Firebugs, once limited to a single Devon population, now appear across most of southern England, their range moving northward as temperatures rise.
- Firebugs are harmless to people, trees and gardens, though birds and amphibians sometimes eat them despite their warning coloration.
Why it matters: The sight confirms firebugs’ rapid northward expansion across England, driven by warming temperatures, turning a once‑rare insect into a common sight for visitors and farmers. Their harmlessness reassures the public while signaling broader climate‑related shifts in local biodiversity.
