Ichneumon extensorius


Body length 10 - 15mm. This species shows sexual dimorphism as the male is black with a white scutellum and yellow abdomen with the distal half black and yellow banded legs. The female is also black but with white bands on the antennae, a white scutellum and tip to the abdomen which is red and black. The legs are also black with red bands. They look like two different species.


Woodland edge, hedgerow and scrubby grassland. The adults feed on nectar and pollen from mostly umbelliferous flowers. The larvae feed parasitically in caterpillars.

Status and distribution

Not well known. An under recorded species. Present at Netherfield Lagoons.

Best time to see

April to October.