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Dialectica imperialella (Zeller, 1847) [Lepidoptera: Gracillariidae] Gracilaria imperialella Zeller, 1847. Dialectica imperialella (Zeller, 1847).

Leaf-mine: The initial gallery is soon absorbed into a blotch. The blotch is squarish as the larva eats through the leaf parenchyma to the upper epidermis. the blotch turns brown and care must be taken to distinguish these mines from diptera - which can form blackish blotches (British leafminers). Larva: The larva is illustrated in British leafminers and Nederlandse bladmineerders. Pupa: Details unknown. Hosts in Britain: Boraginaceae       Pulmonaria officinalis Lungwort British leafminers Pulmonaria officinalis Lungwort Plant, in Pitkin & Plant, 2005 Symphytum officinale Common Comfrey British leafminers Symphytum officinale Common Comfrey Plant, in Pitkin & Plant, 2005 Hosts elsewhere: Lithospernum officinale, Pulmonaria officinalis and Symphytum officinale Boraginaceae       Lithospermum officinale Common Gromwell Belgian Lepidoptera Lithospermum officinale Common Gromwell Nederlandse bladmineerders Pulmonaria officinalis Lungwort Belgian Lepidoptera Pulmonaria officinalis Lungwort Nederlandse bladmineerders Symphytum officinale Common Comfrey Belgian Lepidoptera Symphytum officinale Common Comfrey Nederlandse bladmineerders Time of year - mines: August-September (British leafminers). Time of year - adults: Unknown. Distribution in Britain: British Is. (Karsholt & van Nieukerken in Fauna Europaea) including Cambridge and Hunts (NBN Gateway distribution map - NE). See also British leafminers distribution map. Distribution elsewhere: Widespread in Europe including Austria, Belgium, Czech Republic, Danish mainland, French mainland, Germany, Hungary, Italian mainland, Luxembourg, Poland, Romania, Russia - Central, Slovakia, The Netherlands and Ukraine. Also recorded in Near East and North Africa (Karsholt & van Nieukerken in Fauna Europaea). Parasitoids: Unknown.

External links:	Search the internet:
Belgian Lepidoptera British leafminers NBN Gateway Nederlandse bladmineerders Fauna Europaea [286966] UKMoths	Find using Google Find using Google Scholar Find images using Google

Last updated 21-Oct-2008  Brian Pitkin