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Chirosia histricina (Rondani, 1866) [Diptera: Anthomyiidae] Chortophila histricina Rondani, 1866. Atti Soc. ital. Sci. nat. Milano 9: 169. Anthomyia hystrix Brischke, 1880.Schr. naturf. Ges. Danzig (N.F.) 5: 287. Anthomyia (Chortophila) nigronitens Pandellé, 1900. Revue Ent. 19(Suppl.): 265. Pycnoglossa setifemur Ringdahl, 1939. Opusc. ent. 4: 147.

Leaf-mine: Mine in the frond, not its rolled apex. Mine on upperside. Even if deep still greenish in transmitted light. Mine very large and broad, usually extended to full depth of a single leaf section, The frass lies in a single almost unbroken fine, black line, parallel to the leaf margins. The mine is illustrated in British leafminers and Nederlandse bladmineerders. Mines of Chirosia histricina on Pteridum aquilinum. Image: Willem Ellis (Source: Nederlandse bladmineerders) Larva: The larva is described by de Meijere (1911, as Hylemyia cinerosa) and Ellis (Nederlandse bladmineerders). The cephalopharyngeal skeleton with the upper process shorter than the lower. Mouth hook with only one tooth. Puparium: Details unknown. Hosts in Britain: Dennstaedtiaceae       Pteridium     Ackland, 1978: 227 Pteridium     British leafminers Pteridium aquilinum Bracken Mines in BMNH Pteridium aquilinum Bracken Robbins, 1991: 19-20 Dryopteridaceae       Dryopteris     Robbins, 1991: Hosts elsewhere: Aspleniaceae       Asplenium     Hering, 1957a Asplenium ruta-muraria Wall-rue Nederlandse bladmineerders Blechnaceae       Blechnum     Hering, 1957a Blechnum spicant Hard Fern Nederlandse bladmineerders Dennstaedtiaceae       Pteridium aquilinum Bracken Hering, 1957a Pteridium aquilinum Bracken Nederlandse bladmineerders Dryopteridaceae       Dryopteris     Hering, 1957a Polystichum     Hering, 1957a Polypodiaceae       Polypodium     Hering, 1957a Osmundaceae       Osmunda     Hering, 1957a Woodsiaceae       Athyrium     Hering, 1957a Athyrium filix-femina Lady-fern Nederlandse bladmineerders Cystopteris     Hering, 1957a Matteuccia     Hering, 1957a Time of year - mines: June-October. Time of year - adults: Unknown. Distribution in Britain: Widely distributed in Britain including Devon, Gloucester, Worcester, Hants, Oxford, Sutherland, Perth, Inverness, Argyll, Ross & Cromarty, Elgin (Mike Ackland, pers. comm.), Warwick (Allesley) (Robbins. 1991: 19-20), Berks, Derby, East Kent, Northampton, Salop, South Hants, South-east York, Stafford, Surrey, West Cornwall and West Kent (NBN Gateway distribution map - DF, NE and SER). Also recorded in the Republic of Ireland (Michelsen, 2004 in Fauna Europaea). Distribution elsewhere: Europe including The Netherlands and Luxembourg (Nederlandse bladmineerders), Austria, ? Corsica, Czech Republic, Denmark, Estonia, Finland, French mainland, Germany, Greek mainland, Italian mainland, Lithuania, Norwegian mainland, Poland, Russia - East, Slovakia, Spanish mainland, Sweden and Yugoslavia (Michelsen, 2004 in Fauna Europaea). Also recorded in East Palaearctic and Near East (Michelsen, 2004 in Fauna Europaea). Parasitoids: Pnigalio soemius (Walker, 1839) Hymenoptera: Eulophidae Halticoptera patellana (Dalman, 1818) Hymenoptera: Pteromalidae

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Last updated 30-Sep-2008  Brian Pitkin