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Tachyerges stigma (Germar, 1821) [Coleoptera: Curculionidae] Salius stigma Germar, 1821 Orchestes alboscutellatus Dejean, 1821 Orchestes confundatus Schoenherr, 1835 Curculio jota Paykull, 1800 Tachyerges rufitarsis Stephens, 1831 Tachyerges stigma (Germar, 1821)

Leaf-mine: Oviposition in the base of the midrib, without giving rise to an oviposition scar. The larva initially bores inside the midrib. Later it leaves the midrib, forming a broad corridor in the blade, that widens into a blotch. Finally the legless larva pupates in a globular cocoon inside the mine. Because the mine develops at a time that the leaf is fully developed, mined leaves are not disfigured (Nederlandse bladmineerders). Larva: Details unknown. Pupa: Details unknown. Hosts in Britain: Betulaceae       Betula     Plant, in Pitkin & Plant, 2005 Corylus avellana Hazel Plant, in Pitkin & Plant, 2005 Salicaceae       Salix     Plant, in Pitkin & Plant, 2005 Hosts elsewhere: Betulaceae       Alnus glutinosa Alder Nederlandse bladmineerders Betula pendula Silver Birch Nederlandse bladmineerders Corylus avellana Hazel Nederlandse bladmineerders Salicaceae       ? Populus alba White Poplar Nederlandse bladmineerders ? Populus nigra Black-poplar Nederlandse bladmineerders Salix caprea Goat Willow Nederlandse bladmineerders Salix cinerea Grey Willow Nederlandse bladmineerders Salix repens Creeping Willow Nederlandse bladmineerders Salix viminalis Osier Nederlandse bladmineerders Time of year - mines: Unknown. Time of year - adults: Unknown. Distribution in Britain: Widespred including Berks, Cambridge, Chester, Cumberland, Dorset, East Gloucester, East Kent, East Ross, Fife, North Hants, Northampton, Salop, South Lancaster, South Wilts, Stafford, Warwick, West Gloucester, West Kent, West Sussex and Worcester (NBN Gateway distribution map - HBRG, NE, SNH and SER). Distribution elsewhere: Europe including Bulgaria, ? Corsica, French mainland, Germany, Hungary, Italian mainland, Moldova, Poland, Romania, Russia - Central, East, Northwest and South, Slovakia and Yugoslavia. Also recorded in the East Palaearctic (Alonso-Zarazaga in Fauna Europaea). Parasitoids: Unknown.

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Last updated 01-Sep-2008  Brian Pitkin