Dogwood Rivet Midge - Craneiobia corni
The larvae of the midge Craneiobia corni cause galls on the leaves of Dogwood (Cornus sanguinea) and possibly on other Cornus species. The galls are flask shaped and obvious on both sides of the leaf, they are domed above, 3 to 5 mm across protruding below from midrib or side vein 8 to 10 mm, often several on a leaf. The galls are greenish yellow, often tinged pink or purple.
Gall 
Adult 
Provide a photo
Wherever Dogwood occurs.
July to September.
Not well recorded but thought to be locally frequent in Britain.
Status in Leicestershire and Rutland not known.
martindgrimes
Clipsham
14 August 2016
galls on dogwood
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Species profile
- Species group:
- Craneflies, Gnats & Midges
- Kingdom:
- Animalia
- Order:
- Diptera
- Family:
- Cecidomyiidae
- Records on NatureSpot:
- 1
- First record:
- 14/08/2016 (Grimes, Martin)
- Last record:
- 14/08/2016 (Grimes, Martin)
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