Orthonevra geniculata

Range & Status

Widespread but with most records from the Scottish Highlands and the East Anglian fens.

Regional Distribution

Recorded in Cornwall from two sites on The Lizard (1981), at Liskeard (1992), Keveral Wood, Seaton, Saltash, Sheviock, Maker, St. Anne' s Chapel and Torpoint (1993), Morval, Torpoint and Polbathic (1994) and Zennor (2000).

Habitat & Ecology

The adults can be seen at marsh flowers between April and July in bogs and fens.


Drainage and lowering of the water table by extraction.


The west Cornwall sites are on the Lizard National Nature Reserve.