Apotomis semifasciana explained

Apotomis semifasciana, the short-barred grey marble, is a moth of the family Tortricidae. It was first described by the English entomologist Adrian Hardy Haworth in 1811.

Life cycle

OvaThe eggs are laid on willows (Salix species).^[1]

LarvaThe larva is green; dorsal and subdorsal lines darker; head and plate of 2 yellowish-green. The larvae feed on the catkins and later the leaves of willows in May and June.^[2]

PupaThe blackish brown pupa can be found in a silken cocoon, spun between two leaves of the foodpant in June and July.^[2]

ImagoThe wingspan is 17–20 mm. The head and thorax are grey. The forewings are grey, closely striated with whitish . The basal patch and a subtriangular central costal blotch are fuscous, black-marked, the apex of blotch truncate, marked with a black dash. The costa posteriorly is fuscous-spotted with a darker black-dotted subterminal mark in middle. The hindwings are grey, darker posteriorly.^[3] Julius von Kennel provides a full description. ^[4]

Adults are on wing from July to August, flying from late evening onwards and coming to light and sugar. . During the day they rest in foliage and are not usually easily disturbed.^[2]

Distribution

It is found in most of Europe, from Ireland to Russia.^[5]

Notes

1. The flight season refers to Great Britain and Ireland. This may vary in other parts of the range.

External links

• UKMoths
• Fauna Europaea

Notes and References

1. Book: Emmet . A M . A. Maitland Emmet . A Field Guide To The Smaller British Lepidoptera . 1988 . . London . 0-9502891-6-7 . 173 . Second.
2. Book: Bradley . J D . Tremewan . W G . Smith . Arthur . British Tortricoid Moths. Tortricidae: Olethreutinae . 1979 . . London . 0-903874-06-7 . 44–6.
3. Meyrick, E., 1895 A Handbook of British Lepidoptera MacMillan, London pdf Keys and description
4. [Julius von Kennel]
5. Web site: Apotomis semifasciana (Haworth, 1811) . PESI portal . 27 November 2018.