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Delia echinata (Séguy, 1923)
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larva in mione

Food Plant: Cerastium fontanum (Common mouse-ear), Saponaria spp. (soapwort), Agrostemma spp. (Corncockle), Vaccaria hispanixa (Cowherb), Atriplex spp. (Orache), Spinacia oleracea (Spinach), Silene spp. (Campions)

Egg: Laid singly and loosely on the upperside of the leaf, usually in the troughs formed by the veins. Also laid in leaflets of the terminal and axillary buds.

Mine: Spring, late Summer

Notes: The larvae penetrate the epidermis and tunnel through the mesophyll until they reach the midrib - they may make a small blotch mine in doing so. they may also make an irregular linear mine along the edge of a lateral vein. They feed mostly inside the hollow midrib. leaf petiole or stem and can cause the upper parts of an infected plant to wilt. pupation may be in the soil or in the feeding tunnels in the plant. the larva can be seen in the mine. The top leaves of the plant (Cerastium) are missing in the above photo.

Data: 10.xi.2013, Weeting, Norfolk, VC28

Image:© Ian Barton

sponsored by Colin Plant Associates (UK) LLP/Consultant Entomologists