Phasia hemiptera


One of a small group of distinctive Tachinid flies. This species is strongly sexually dimorphic the female has noticeable orange hair patches on the sides of the thorax, and the abdomen shows some subdued orange marking. The males are even more colourful with curved patterned wings.

Identification difficulty

Various habitats, but usually in well wooded areas or around hedgerows etc.

When to see it

Flight period: early May to early August

Life History

It is a parasite of Heteropteran bugs, with known hosts including Green Shieldbug and Forest Bug. The female lays her eggs on these insects and the larvae then develop inside the living host.

UK Status

Widespread and fairly frequent, particularly in the southern half of Britain.

VC55 Status

Thought to be fairly frequent 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

Species profile

Species group:
Records on NatureSpot:
First record:
06/08/2012 (Calow, Graham)
Last record:
26/05/2024 (Nicholls, David)

Total records by month

% of records within its species group

10km squares with records

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