A flower longhorn beetle - Stictoleptura cordigera

Scientific Name: Stictoleptura cordigera (subfamily Lepturinae, family Cerambycidae).

English Name: No vernacular name (a flower longhorn).

French Name: Le Lepture cordigère (='flower longhorn bearing a mark like a heart'), le Lepture porte-cœur (='heart bearing flower longhorn').

5 Key Characters:
  • adults 14 - 20 mm.
  • head, pronotum (thorax) and abdomen black, elytra (wing cases) red with a distinctive black pattern.
  • adults most often observed visiting flowers, especially umbellifers.

Habitat: Adults found on flowers, especially umbellifers Apiaceae. Larvae found in rotten deciduous trees (which they eat), especially Oaks Quercus spp and Sweet Chestnut Castanea sativa.

Adult Active Period: June-July-August.

Status: Reasonably common. Like all large longhorns with life cycles that take 2 -3 years to complete they are somewhat threatened by the removal of dead wood in forests and gardens.

Photographed by Loire Valley Nature:

On Field Scabious Knautia arvensis in our orchard.
On Wild Parsnip Pastinaca sativa.

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