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Image of Acroneuria lycorias (Newman 1839)
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Acroneuria lycorias (Newman 1839)

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Conservation Status

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The species is not endangered, but as with all stoneflies, it is sensitive to organic pollution.
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Cyclicity

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Adults emerge in early to mid July depending on water temperatures.
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Distribution

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In Alberta, the species is known from boreal streams. In North America, it occurs from northern Quebec south through New England to Florida and west to Ontario, Manitoba, Saskatchewan, and Tennessee.
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General Description

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Males (length = 18 mm) have paraprocts that are flattened, triangular and sharply pointed at their anteriorly directed tips, and have spinules on Tergites 9 and 10. Females (length = 35 mm) have the subgenital plate produced and flattened or emarginate apically. Adults can be distinguished from Acroneuria abnormis by the presence of anal gill remnants and dark brown sclerotization on the head within the ocellar triangle. Nymphs have anal gills, and a banded pattern on abdominal terga with a light M-pattern in front of the anterior ocellus.
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Habitat

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Large, cool water streams and rivers.
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Life Cycle

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The life cycle is three years in Saskatchewan, and the nymphal habitat is under larger rocks in regions of the stream with the swiftest current.
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Trophic Strategy

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Nymphs are carnivorous, preying on other smaller aquatic insect nymphs and larvae.
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Acroneuria lycorias ( Catalan; Valencian )

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Acroneuria lycorias és una espècie d'insecte plecòpter pertanyent a la família dels pèrlids.[5]

Descripció

  • Els mascles fan 18 mm de llargària i les femelles 35.
  • Les femelles tenen la placa subgenital aplanada o emarginada apicalment.[6]

Reproducció

Té una longevitat de 3 anys a Saskatchewan. Les larves viuen a sota de les pedres en els trams dels rius on el corrent és més ràpid i els adults emergeixen a principis o mitjans de juliol segons la temperatura de l'aigua.[6]

Alimentació

Les nimfes més petites mengen fulles i matèria vegetal, tot i que les més grosses adopten una dieta carnívora i es nodreixen de larves i nimfes petites d'altres insectes aquàtics.[6][7]

Distribució geogràfica

Es troba a Nord-amèrica: el Canadà (Manitoba, Nova Brunsvic, Nova Escòcia, Ontàrio, el Quebec i Saskatchewan)[8] i els Estats Units (Connecticut, Massachusetts,[9] Kentucky, Iowa,[10] Maine,[11] Michigan,[12] Minnesota, Carolina del Nord, Dakota del Nord,[13] Florida,[14] Nova Jersey, Nova York, Ohio,[15] Pennsilvània,[16] Tennessee, Virgínia,[17] Wisconsin i Virgínia Occidental).[4][18][19][20][21][22][23]

Estat de conservació

No es troba en perill d'extinció, però és sensible a la contaminació.[6]

Referències

  1. ↑ Pictet, F.J., 1841. Histoire naturelle générale et particulière des insectes névroptères 1:144.
  2. ↑ uBio (anglès)
  3. ↑ Newman, 1839. Mag.nat.Hist. New Series 3(25):35.
  4. ↑ 4,0 4,1 4,2 Catalogue of Life (anglès)
  5. ↑ The Taxonomicon (anglès)
  6. ↑ 6,0 6,1 6,2 6,3 University of Alberta E.H. Strickland Entomological Museum (anglès)
  7. ↑ Upper Delaware River Insects (anglès)
  8. ↑ Saskatchewan Conservation Data Centre (anglès)
  9. ↑ Stoneflies of Ipswich River and Massachusetts (anglès)
  10. ↑ The University of Iowa (anglès)
  11. ↑ The University of Maine (anglès)
  12. ↑ Stoneflies of the United States - Stoneflies of Michigan (anglès)
  13. ↑ Stoneflies of the United States - Stoneflies of North Dakota (anglès)
  14. ↑ A Guide to the Stoneflies (Plecoptera) of Florida (anglès)
  15. ↑ An Annotated List of the Stoneflies of Ohio (Plecoptera) (anglès)
  16. ↑ Pennsylvania Aquatic Insects (anglès)
  17. ↑ Stoneflies of the United States - Stoneflies of Virginia (anglès)
  18. ↑ GBIF (anglès)
  19. ↑ Perlidae Species Listing (anglès)
  20. ↑ Flyfishing Entomology - North American Stoneflies (anglès)
  21. ↑ Global Species (anglès)
  22. ↑ NatureServe (anglès)
  23. ↑ Plecoptera Species File (Version 1.1/4.0) (anglès)


Bibliografia

  • Baumann, R.W., 1982. Plecoptera. A: Parker, S.P., Synopsis and Classification of Living Organisms, vol. 2. McGraw-Hill. Nova York: 389-393.
  • Claassen, 1940. Mem. Cornell agric. Exp. Sta. 232:174.
  • Earle, 2009. Ent. News 120(2):157-170.
  • Grimaldi, D. & Engel, M.S., 2005. Evolution of the Insects. Cambridge University Press: xv + 755 pp.
  • Hagen, 1861. Smith. Misc. Coll. 21.
  • Illies, 1966. Das Tierreich 82:309.
  • Kimmins, 1970. Bull. Br. Mus. Nat. Hist. Ent. 24(8):344.
  • Stark & Gaufin, 1976. J. Kans. Entomol. Soc. 49(2):233.
  • Tarter & C.H. Nelson, 2010. Ent. News 121(2):161.
  • Walker, 1852. Catalogue of the specimens of neuropterous insects in the collection of the British Museum 1:152.
  • Zwick, P., 1973. Insecta: Plecoptera. Phylogenetisches System und Katalog. Das Tierreich 94. Walter de Gruyter and Co., Berlín. 465 pp.
  • Zwick, P., 2000: Phylogenetic System and Zoogeography of the Plecoptera. Annual Review of Entomology. Vol. 45: 709-746. «Enllaç». [Consulta: 15 juliol 2012].


Enllaços externs

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Acroneuria lycorias: Brief Summary ( Catalan; Valencian )

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Acroneuria lycorias és una espècie d'insecte plecòpter pertanyent a la família dels pèrlids.

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Acroneuria lycorias

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Acroneuria lycorias or the boreal stonefly is a species of stonefly native to North America. It was first described by Edward Newman in 1839. The species is named after the Nereid Lycorias of Greek mythology.

The species is found in North America. It ranges from northern Quebec southwards through New England to Florida and westwards to Ontario, Manitoba, Saskatchewan, and Tennessee. In Alberta, the species is known from boreal streams. The insect frequents large cold water bodies and has a life cycle of three years. The nymphs are aquatic and carnivorous. While large stoneflies are not endangered, like all stoneflies, they are very sensitive to pollution.[1]

References

  1. ^ "Species Page - Acroneuria lycorias". Entomology Collection. University of Alberta E.H. Strickland Entomological Museum. Archived from the original on August 24, 2012.
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Acroneuria lycorias: Brief Summary

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Acroneuria lycorias or the boreal stonefly is a species of stonefly native to North America. It was first described by Edward Newman in 1839. The species is named after the Nereid Lycorias of Greek mythology.

The species is found in North America. It ranges from northern Quebec southwards through New England to Florida and westwards to Ontario, Manitoba, Saskatchewan, and Tennessee. In Alberta, the species is known from boreal streams. The insect frequents large cold water bodies and has a life cycle of three years. The nymphs are aquatic and carnivorous. While large stoneflies are not endangered, like all stoneflies, they are very sensitive to pollution.

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Acroneuria lycorias ( Dutch; Flemish )

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Insecten

Acroneuria lycorias is een steenvlieg uit de familie borstelsteenvliegen (Perlidae). De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1839 door Newman.

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