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Isochnus sequensi (Stierlin, 1894) [Coleoptera: Curculionidae] Orchestes sequensi Stierlin, 1894 Curculio populi Fabricius, 1792 Rhynchaenus populicola Silfverberg, 1977 Isochnus populicola (Stierlin, 1894) Isochnus sequensi (Stierlin, 1894)

Leaf-mine: Almost round, brown to brownish black, upper surface, very opaque blotch, about 1 cm in diameter, without an initial corridor. Upper epidermis leathery in colour. Often several mines in a leaf. All frass as a tar-like film on the floor of the mine (Nederlandse bladmineerders). Larva: Larva solitary (Nederlandse bladmineerders). Pupa: Pupation in the mine; pupa not in a cocoon (Nederlandse bladmineerders). Hosts in Britain: Salicaceae       Populus     Plant, in Pitkin & Plant, 2005 (as populicola) Hosts elsewhere: Salicaceae       Populus nigra Black-poplar Nederlandse bladmineerders Populus x canadensis Hybrid Black-poplar Nederlandse bladmineerders Salix alba White Willow Nederlandse bladmineerders Salix babylonica Weeping Crack-willow Nederlandse bladmineerders Salix dasyclados   Nederlandse bladmineerders Salix fragilis Crack-willow Nederlandse bladmineerders Salix pentandra Bay Willow Nederlandse bladmineerders Salix purpurea Purple Willow Nederlandse bladmineerders Salix triandra Almond Willow Nederlandse bladmineerders Salix viminalis Osier Nederlandse bladmineerders Time of year - mines: Unknown. Time of year - adults: Unknown. Distribution in Britain: East Kent and East Sussex (NBN Gateway distribution map, as populicola - NE). Distribution elsewhere: Europe including Bulgaria, ? Corsica, Finland, French mainland, Germany, Hungary, Italian mainland, Moldova, Norwegian mainland, Poland, Romania, Russia East, Slovakia, Sweden and Yugoslavia (Alonso-Zarazaga in Fauna Europaea). Parasitoids: Unknown.

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British leafminers NBN Gateway, as populicola Nederlandse bladmineerders Fauna Europaea [251031]	Find using Google Find using Google Scholar Find images using Google

Last updated 01-Sep-2008  Brian Pitkin