Oncocera semirubella
Rosy-striped Knot-horn
Wingspan 17 to 29 mm. A beautifully coloured little moth, with pink and yellow forewings, sometimes exhibiting a whitish stripe along the leading edge of the forewing.
Unless identified by a recognised expert, a photo is required. If the photo doesn't show the key ID features then in the comments box describe the size and identifying characters you have observed.
The preferred habitats are chalk downland and limestone cliffs.
Flying in June and July, it can sometimes be seen in the afternoon sunshine, and later at night it comes to light.
The larval foodplants are Bird's-foot-trefoil and Clover the larvae forming strong silken tubes.
The species occurs mainly in the southernmost counties of England and some eastern coastal areas. In the Butterfly Conservation's Microlepidoptera Report 2011 this species was classified as Nationally Scarce B.
Rare in Leicestershire and Rutland. The Leicester Forest East record of 25 July 2019 is believed to be the first for VC55.
Dave Gamble
Leicester Forest East garden
25 July 2019
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Species profile
- Common names
- Rosy-striped Knot-horn
- Species group:
- Moths
- Kingdom:
- Animalia
- Order:
- Lepidoptera
- Family:
- Pyralidae
- Records on NatureSpot:
- 1
- First record:
- 25/07/2019 (Gamble, David)
- Last record:
- 25/07/2019 (Gamble, David)
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