Harman Patil (Editor)

Depressaria radiella

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Kingdom  Animalia
Class  Insecta
Family  Depressariidae
Rank  Species
Phylum  Arthropoda
Order  Lepidoptera
Genus  Depressaria

Similar  Depressaria, Agonopterix heracliana, Agonopterix arenella, Depressaria badiella, Agonopterix nervosa

The parsnip moth or parsnip webworm (Depressaria radiella) is a moth of the Depressariidae family. It is found in most of Europe, except Portugal and most of the Balkan Peninsula.

Contents

The wingspan is 19–27 mm. 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 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. Pupation takes place in the main stem of the food plant.

Larva of the parsnip moth depressaria radiella on parsnip pastinaca sativa 2


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.

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.

References

Depressaria radiella Wikipedia


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