Ammophila sabulosa

[2][3] Found across Eurasia, the parasitoid wasp is notable for the mass provisioning behaviour of the females, hunting caterpillars mainly on sunny days, paralysing them with a sting, and burying them in a burrow with a single egg.

[6] It was formerly thought that the following were subspecies: Ammophila sabulosa is widely distributed across Eurasia with records from the southern half of Britain,[7] France, the Netherlands, Germany, Austria, Italy.

Hungary, Poland, Norway, Sweden and Finland, further south in Turkey and Iran, [8][1][9] then ranging eastwards as far as the Russian Far East, with a very few records in India and Japan.

[11][3] The prey is stung several times, mainly on the 2nd and 3rd abdominal segments: this distribution may relate to the positions of nerve ganglia that co-ordinate locomotion in the caterpillar.

Nests are nearly always mass provisioned, which means fully stocked with enough food to take the wasp larva through to pupation, and then permanently closed.

[14] Ammophila sabulosa is parasitised by some other wasps including the Ichneumonid Buathra tarsoleuca and the Sphecid Podalonia affinis.

Male showing black spots on the first two tergites
Video of Ammophila sabulosa provisioning a burrow with a single large caterpillar, and camouflaging it
Ammophila sabulosa carrying a caterpillar to provision a nest