Hemichroa australis
Adult Hemichroa australis can reach a length of about 7 to 8 mm. The adult sawfly is largely back with an orange head and thorax. The larvae feed on the leaves of Birch and Alder. When feeding, young larvae make holes in characteristic curved or angled lines in the leaves, whereas larger larvae feed on leaf edges.
Associated with Alder and Birch.
Feeding larvae can be encountered when the host species are in leaf
Associated with Birch and Alder.
Widespread in England and Wales but true status is difficult to determine due to lack of records.
Previously thought uncommon in Leicestershire and Rutland, but almost certainly under recorded. The Dunton Gorse record of 6th September 2017 may be the first for VC55.
Graham Calow
Dunton Gorse
06 September 2017
feeding signs on Birch
Graham Calow
Dunton Gorse
06 September 2017
larva feeding on Birch
Graham Calow
Dunton Gorse
06 September 2017
larva feeding on Birch
Graham Calow
Stoney Stanton, Highgate
Lodge Farm open access land
30 October 2020
feeding signs on Alder
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Species profile
- Species group:
- Sawflies
- Kingdom:
- Animalia
- Order:
- Hymenoptera
- Family:
- Tenthredinidae
- Records on NatureSpot:
- 44
- First record:
- 06/09/2017 (Calow, Graham)
- Last record:
- 16/09/2024 (Calow, Graham)
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% of records within its species group
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