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The parsnip moth (''Depressaria radiella'') is a moth of the Oecophoridae family. It is found in most of Europe, except Portugal and most of the Balkan Peninsula. The wingspan is 19–27 mm.〔(microlepidoptera.nl )〕 Adults are on wing from August to (after overwintering in a sheltered place) May of the following year. There is one generation per year. The parsnip webworm larvae feed on ''Heracleum sphondylium'', ''Pastinaca sativa'' and ''Apium nodiflorum''. They feed on the flowers and developing seeds, defending their territory by enclosing an umbel in silk, while safely metabolizing the ingested furocoumarins.〔May Berenbaum, et al. (Webworms and Parsnips ) University of Illinois. Accessed 14 July 2015〕 Pupation takes place in the main stem of the food plant.〔(Lepidoptera of Belgium )〕 ==Taxonomy== ''Depressaria radiella'' is the type species of the ''Depressaria'' genus. Its scientific name has been much confused for about 200 years. A.H. Haworth, on establishing the genus ''Depressaria'' in his 1811 issues of ''Lepidoptera Britannica'', called the eventual type species ''Phalaena heraclei'', an unjustified emendation of ''P. (Tortrix) heracliana''. In this he followed such entomologists of his time as A.J. Retzius, who in 1783 had believed the Parsnip Moth to be a species originally described by C. Linnaeus in 1758. But in fact, this was a misidentification; Linnaeus' moth was actually the one known today as ''Agonopterix heracliana''. To make matters worse, J. Curtis popularized another incorrect spelling, ''D. heracleana'', apparently first introduced (as ''Pyralis heracleana'') by J.C. Fabricius in his 1775 ''Systema Entomologiae''.〔Pitkin & Jenkins (2004)〕 When the error of Retzius, Haworth and others was realized, it was assumed that the Parsnip Moth was only validly described (as ''Haemilis pastinacella'') by P.A.J. Duponchel in 1838, and consequently it was throughout much of the 20th century known as ''D. pastinacella''. But according to the ICZN's judgement, there already was an older valid description – that of J.A.E. Goeze, who in 1783 named the species ''Phalaena radiella''. Thus, the correct scientific name of the type species is ''D. radiella''.〔 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Depressaria radiella」の詳細全文を読む スポンサード リンク
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