Wednesday, 23 July 2025

Four-spotted Antlion

Twice this summer we have had pleasure of a visit by an uncommon and striking insect called a Four-spotted Antlion Distoleon tetragrammicus (Fr. Fourmilion longicorne). The adults look a bit like damselflies, but are much more sedentary. The juveniles are tiny ferocious predators that look like bits of bark with oversized jaws.

Four-spotted Antlion Distoleon tetragrammicus, France.

Antlions belong to the insect order Neuroptera, which includes lacewings and owlflies. The Antlions make up the family Myrmeleontidae.

Four-spotted Antlion Distoleon tetragrammicus, France.

Four-spotted antlions are present in southern Europe up to about Paris in the north, and in North Africa. 

Four-spotted Antlion Distoleon tetragrammicus, France.

They can be found during the day in open oak or pine woodland on dry calcareous hillsides, as well as nearby fallow land.

Four-spotted Antlion Distoleon tetragrammicus, France.

 The adults appear from June to August. The larvae, unlike other antlion species, do not dig funnel traps, but live in the dry leaf litter.

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