Biology:Alypia octomaculata

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Short description: Species of moth

Eight Spotted Forester
An adult moth of the Alypia octomaculata. Its entire body is black, except for its pale yellow shoulder-pad like pattern. It has two spots on each wing.
Adult Alypia octomaculata
Scientific classification edit
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Superfamily: Noctuoidea
Family: Noctuidae
Genus: Alypia
Species:
A. octomaculata
Binomial name
Alypia octomaculata
Fabricius, 1775
Synonyms
  • Sesia 8-maculata
  • Sesia octomaculata Fabricius, 1775
  • Phalaena albomaculata Stoll, 1782
  • Phalaena bimaculata Gmelin, 1790
  • Alypia octomaculalis Hübner, 1818
  • Alypia quadriguttalis Hübner, 1818
  • Alypia matuta H. Edwards, 1883
  • Alypia dipsaci Grote & Robinson, 1868

Alypia octomaculata, the eight-spotted forester, is a moth of the family Noctuidae first described by Johan Christian Fabricius in 1775. It is native to Canada , but can be found today throughout Northern America, ranging between Nova Scotia to Florida and South Dakota to Texas .[1] Their habitats being rather specific, they make home where wooded areas meet open fields.

Description

Image of an Alypia octomaculara caterpillar. It's small in size, with black, white, and orange stripes interchangeable throughout its body.
Mature A. octomaculata larva

Full grown larvae reach up to 25.4–38 millimetres (1–1 1⁄2 in).[2] The moth is overall black with two spots on each wing (total of eight spots), it's forewing ranges between shades of white, cream, or yellow. [3] Their wingspan is around 30–37 millimetres (1.2–1.5 in). These moths are active during the day and night,[4] often being mistaken as a butterfly.[5]

Larvae

The larvae feed on the underside of leaves and stems of grapevines, peppervines and Virginia creepers.[2][4] A. octomaculata larvae are considered somewhat of a pest in commercial and decorative vineyards.[5]

When threatened, their first line of defense is to vomit a foul orange tinted liquid. It escapes by falling off of its perch, still attached to it by the silk thread excreted from its mouth.

Larvae who are still around during the fall like to spin their soft-walled cocoon into partial decayed material such as wood, soil, and even trash. Some mature caterpillars even die when they aren't given an opportunity to bore themselves into something pulpy and suitable.[5]

Pupae

Like many other moths, A. octomaculata have the ability to remain in something called a diapause, a dormant state in which their development is delayed, up to as far as 4 years long on record. The conditions of when they decide to hatch is unknown.[5]

Adults

A. octomaculata are univoltine more north, flying late spring from April to June to produce one generation. In warmer climates there may be two annual broods and even attempts at three.[5] The matured adults feed on nectar from flowers of herbaceous plants. When their initial brood peaks, during March, the adults fly to flowers such as that of Sweetleaf.[4]

Gallery

  • Closeup of the caterpillar. It has tiny white hairs all throughout its body. Tiny black legs, and an orange head with black dots.

    Larva

  • An image of a Alypia octomaculata caterpillar on a leaf, with a fly landing on top of it, attempting to parasitize it.

    A. octomaculata being parasitized

  • An adult A.octomaculata showing off its orange, pollen like, legs.

    Adult

Subspecies

  • Alypia octomaculata octomaculata (Fabricuis, 1775)
  • Alypia octomaculata matuta (H. Edwards, 1883)[6]

References

  1. ↑ Heppner, J.B (2003). "Arthropods of Florida and Neighboring Land Areas". Lepidoptera of Florida (Florida Department of Agriculture and Consumer Services, Division of Plant Industry, 2007) 17. https://www.fdacs.gov/ezs3download/download/25122/516038/Media/Files/Plant-Industry-Files/PDF/arthropods-of-florida-vol-17.pdf. 
  2. ↑ 2.0 2.1 Lowry, Quincy S. (1917-02-01). "An Outbreak of The Eight-Spotted Forester, Alypia Octomaculata Fabr., In New Haven, Conn." (in en). Journal of Economic Entomology 10 (1): 47–48. doi:10.1093/jee/10.1.47. ISSN 1938-291X. http://academic.oup.com/jee/article/10/1/47/2198587/An-Outbreak-of-The-EightSpotted-Forester-Alypia. 
  3. ↑ Borror, Donald J. & White, Richard E., Insects - A Peterson Field Guide, Houghton Mifflin Company, Boston, New York, 1970, plate #12
  4. ↑ 4.0 4.1 4.2 Brou Jr., Vernon; Lafontaine, Donald (2009-05-12). "A new species of Lithophane Hbn. (Lepidoptera, Noctuidae, Xyleninae)". ZooKeys (9): 11–20. doi:10.3897/zookeys.9.158. ISSN 1313-2970. 
  5. ↑ 5.0 5.1 5.2 5.3 5.4 "Eight-spotted Forester Moth (Family Noctuidae)" (in en-US). 2013-03-12. https://uwm.edu/field-station/eight-spotted-forester-moth/. 
  6. ↑ Lafontaine, Donald; Schmidt, Christian (2010-03-19). "Annotated check list of the Noctuoidea (Insecta, Lepidoptera) of North America north of Mexico". ZooKeys (40): 64. doi:10.3897/zookeys.40.414. ISSN 1313-2970. http://zookeys.pensoft.net/articles.php?id=2182. 

External links

Wikidata ☰ Q4738691 entry




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