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''Apamea sordens'', the rustic shoulder-knot or bordered apamea, is a
moth Moths are a paraphyletic group of insects that includes all members of the order Lepidoptera that are not butterflies, with moths making up the vast majority of the order. There are thought to be approximately 160,000 species of moth, many of w ...
of the family Noctuidae. The species was first described by
Johann Siegfried Hufnagel Johann Siegfried Hufnagel (17 October 1724, Falkenwalde, Prenzlau district, Brandenburg – 23 February 1795, Langenfeld, Sternberg district) was a German parson and entomologist ( lepidopterist). Life Until the late 20th century nothing was know ...
in 1766. It is distributed throughout Europe, east across the Palearctic to
Central Asia Central Asia, also known as Middle Asia, is a subregion, region of Asia that stretches from the Caspian Sea in the west to western China and Mongolia in the east, and from Afghanistan and Iran in the south to Russia in the north. It includes t ...
and to China and Japan. It also occurs in North America (
Labrador , nickname = "The Big Land" , etymology = , subdivision_type = Country , subdivision_name = Canada , subdivision_type1 = Province , subdivision_name1 ...
to
Virginia Virginia, officially the Commonwealth of Virginia, is a state in the Mid-Atlantic and Southeastern regions of the United States, between the Atlantic Coast and the Appalachian Mountains. The geography and climate of the Commonwealth ar ...
, west across
Canada Canada is a country in North America. Its ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, covering over , making it the world's second-largest country by tot ...
, south to
Minnesota Minnesota () is a state in the upper midwestern region of the United States. It is the 12th largest U.S. state in area and the 22nd most populous, with over 5.75 million residents. Minnesota is home to western prairies, now given over to ...
). This moth has a
wingspan The wingspan (or just span) of a bird or an airplane is the distance from one wingtip to the other wingtip. For example, the Boeing 777–200 has a wingspan of , and a wandering albatross (''Diomedea exulans'') caught in 1965 had a wingspan o ...
of 36 to 42 mm. The forewings are brown with mostly indistinct markings except for the narrow black mark at the base of the wing which gives the species its common name. The hindwings are greyish brown, darker towards the margins, with prominent dark venation. This moth flies at night and is attracted to light and sugar.


Technical description and variation

Forewing dull lilac grey, flushed with fawn colour, especially in median area; a black, semibifid streak from base below cell; lines brownish, double, indistinct; the median shade dark grey or fawn colour, diffuse and prominent; orbicular stigma pale, black-edged; reniform large with grey centre, blackish in lower lobe, with pale annulus and black outline; claviform small, with dark outline; submarginal line dull, with darker shades in places on each side; hindwing greyish fuscous, paler towards base; — in ''basistriga'' Stgr. the ground colour is bluish grey except the median area, and the black basal streak is stronger; this form is recorded from western Turkestan, eastern Siberia, Japan, and China, also from Norway; a small series from Pescocostanzo, Italy, seems referable here; — ab. ''grisescens'' Stgr. from Tibet and Turkestan is altogether paler and greyer; — ab. ''unicolor'' Tutt is a melanistic form from the north of England, in which the ground is dark reddish brown with a purplish tinge, the stigmata and lines more or less obscured; hindwing much darker; — ''pallida'' Tutt and ''cinerascens'' Tutt are both grey forms without any rufous admixture, the former being pale ochreous grey, and the latter dull ashy grey, the one from Ireland, the other from northern England; this latter form probably occurs, however, in other localities, and is distinct from Staudinger's Central Asiatic form ''grisescens'', for which Spuler quotes Finland and Esthland with a ? as localities. . Its flight season in the
British Isles The British Isles are a group of islands in the North Atlantic Ocean off the north-western coast of continental Europe, consisting of the islands of Great Britain, Ireland, the Isle of Man, the Inner and Outer Hebrides, the Northern Isles, ...
is May and June. The
larva A larva (; plural larvae ) is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle. ...
feeds on various
grass Poaceae () or Gramineae () is a large and nearly ubiquitous family of monocotyledonous flowering plants commonly known as grasses. It includes the cereal grasses, bamboos and the grasses of natural grassland and species cultivated in lawns a ...
es, including
oats The oat (''Avena sativa''), sometimes called the common oat, is a species of cereal grain grown for its seed, which is known by the same name (usually in the plural, unlike other cereals and pseudocereals). While oats are suitable for human co ...
,
fescues ''Festuca'' (fescue) is a genus of flowering plants belonging to the grass family Poaceae (subfamily Pooideae). They are evergreen or herbaceous perennial tufted grasses with a height range of and a cosmopolitan distribution, occurring on every ...
, barleys, canarygrasses, timothy,
ryes Ryes () is a commune in the Calvados department in the Normandy region in northwestern France France (), officially the French Republic ( ), is a country primarily located in Western Europe. It also comprises of overseas regions ...
,
wheat Wheat is a grass widely cultivated for its seed, a cereal grain that is a worldwide staple food. The many species of wheat together make up the genus ''Triticum'' ; the most widely grown is common wheat (''T. aestivum''). The archaeologi ...
s, and
wild rice Wild rice, also called manoomin, Canada rice, Indian rice, or water oats, is any of four species of grasses that form the genus ''Zizania'', and the grain that can be harvested from them. The grain was historically gathered and eaten in both ...
. This species overwinters as a larva, feeding in mild weather throughout the season. it is grey brown with black tubercles; dorsal line broad, whitish; subdorsal finer; spiracular line broadly whitish, edged above with dark; feeding when quite young in autumn in the grains of corn and after hibernation in the fresh lower leaves and on grasses. Its habitat includes fields, grasslands, and steppe.


Subspecies

*''Apamea sordens finitima'' (formerly ''A. finitima'') *''Apamea sordens cerivana'' (Alberta) *''Apamea sordens sableana'' Mikkola, 2009


Notes


References

*
Chinery, Michael Michael Chinery (born 1938, in London London is the capital and List of urban areas in the United Kingdom, largest city of England and the United Kingdom, with a population of just under 9 million. It stands on the River Thames in south-e ...
''Collins Guide to the Insects of Britain and Western Europe''. 1986 (Reprinted 1991). * Skinner, Bernard '' The Colour Identification Guide to Moths of the British Isles''. 1984.


External links

* * Taxonomy *
''Lepiforum e.V.''
{{Taxonbar , from=Q2989340 Apamea (moth) Moths described in 1766 Moths of Asia Moths of Europe Moths of North America Taxa named by Johann Siegfried Hufnagel