Eriocrania sangii larva

Betula pubescens, Hollandsche Rading

thorax, dorsal and ventral

integument, strongly magnified

Eriocrania sangii larval skin

Betula pendula, Castricum: shed larval skin in the mine

Young larvae seem greyish white, but at strong magnifications their integument is covered with many minute black warts. These warts become denser or larger with age, and the full grown larva has to the naked eye the colour of lead. See also the illustration in Bengtsson (2008a).

mod 27.xi.2018