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Small square-spot

From Wikipedia, the free encyclopedia

Small square-spot
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Superfamily: Noctuoidea
Family: Noctuidae
Genus: Diarsia
Species:
D. rubi
Binomial name
Diarsia rubi
(Vieweg, 1790)
Synonyms
  • Noctua rubi

The small square-spot (Diarsia rubi) is a moth of the family Noctuidae. The species was first described by Karl Friedrich Vieweg in 1790. It is found in Europe apart from the far south-east then east through the Caucasus, Transcaucasia, Central Asia, Siberia, the Russian Far East and Kamchatka.

Caterpillar

Description

This is a quite a small species (wingspan 30–38 mm) with dull greyish-pink forewings, varying to red brown, marked with a pale angular mark which gives the species its common name. Forewing with the crosslines and shades olive; the cell brown; reniform with whitish outline; claviform with a dark speck at its end; marginal area dark. The hindwings are pale luteous grey with a pink fringe.[1]

Biology

Two broods are produced each year with the adults flying in May and June and again in August and September.[2] Moths of the second brood are usually smaller and darker than those of the first. The species flies at night and is attracted to light and sugar. It will also visit flowers such as heather and ragwort.

The larva feeds on a variety of plants: Recorded food plants include raspberry, Vaccinium and willow.[3] The species overwinters as a larva.

Similar species

Diarsia rubi is difficult to certainly distinguish from its congeners. See Townsend et al.[4]

References

  1. ^ Seitz, A. Ed., 1914 Die Großschmetterlinge der Erde, Verlag Alfred Kernen, Stuttgart Band 3: Abt. 1, Die Großschmetterlinge des palaearktischen Faunengebietes, Die palaearktischen eulenartigen Nachtfalter, 1914
  2. ^ The flight season refers to the British Isles. This may vary in other parts of the range.
  3. ^ Robinson, Gaden S.; Ackery, Phillip R.; Kitching, Ian J.; Beccaloni, George W.; Hernández, Luis M. (2010). "Search the database - introduction and help". HOSTS - A Database of the World's Lepidopteran Hostplants. Natural History Museum, London.
  4. ^ Martin C. Townsend, Jon Clifton and Brian Goodey (2010). British and Irish Moths: An Illustrated Guide to Selected Difficult Species. (covering the use of genitalia characters and other features) Butterfly Conservation.

External links


This page was last edited on 18 June 2021, at 11:55
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