Black-horned Cleg - Haematopota crassicornis


The Haematopota genus is distinctive due to the mottled wings. H. crassicornis has a greyish abdomen and all-black antennae.

Similar Species

H. pluvialis is the other common species in this genus and very similar though tends to have a brown rather than grey appearance. The males of both species have eye-bands that stop halfway up, while females of both species have eye-bands over the whole of the eyes. However males of pluvialis have an orange third antennal segment.

Identification difficulty

Moist habitats, well wooded areas, pond margins and woodland.

When to see it

May to August.

Life History

Males feed from flowers, but the females bite to draw blood from large mammals including humans.

UK Status

Widespread and fairly common in Britain.

VC55 Status

Fairly common in Leicestershire and Rutland

Leicestershire & Rutland Map


Yellow squares = NBN records (all known data)
Coloured circles = NatureSpot records: 2020+ | 2015-2019 | pre-2015

UK Map