home | mines | species | plants | mine-keys | links | search | updates | newsletters | news | books
Agromyza nigrescens Hendel, 1920
< back | NBN Map | next >
the initial corridor has frass in two lines


Food Plant: Geranium spp.(Cranesbills)

Mine: Summer

Pupa: Outside the mine

Notes: The first instar larva makes an initial corridor, with frass in two lines (as shown in the photo). Then a large irregular blotch is formed.

Data: xii.2004, Greenford, Middlesex, VC21

Image:© Rachel Terry

Recording Grade: 2

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