Coras

Life-forms

Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Ecdysozoa
Cladus: Panarthropoda
Phylum: Arthropoda
Subphylum: Chelicerata
Classis: Arachnida
Ordo: Araneae
Subordo: Opisthothelae
Infraordo: Araneomorphae
Taxon: Neocribellatae
Series: Entelegynae
Superfamilia: Agelenoidea

Familia: Agelenidae
Subfamilia: Coelotinae
Genus: Coras
Species: C. aerialis – C. alabama – C. angularis – C. cavernorum – C. crescentis – C. furcatus – C. juvenilis – C. kisatchie – C. lamellosus – C. medicinalis – C. montanus – C. parallelis – C. perplexus – C. seorakensis – C. taugynus – C. tennesseensis
Name

Coras Simon, 1898

Type species: Tegenaria medicinalis Hentz, 1821
References
Additional references

Seo, B.K. 2014. Four New Species of the Genus Pholcus (Araneae: Pholcidae) from Korea. Korean journal of applied entomology 53(4): 399-408. DOI: 10.5656/KSAE.2014.10.0.059. Reference page.

Coras is a genus of funnel weavers first described by Eugène Simon in 1898.[2] It has fifteen described species that occur in eastern North America from Nova Scotia south to Florida. They can be readily distinguished from other genera in the subfamily by their anterior median eyes being larger than the anterior lateral eyes, whereas in other genera the reverse is true, along with a number of more technical reproductive features. The type species is Coras medicinalis[3] (so named because its web was used in medicine[4]).

These spiders are frequently found at or near ground level, or in cellars of houses,[5][full citation needed] where they construct small and rather messy sheet webs on the ground and attached to nearby more elevated things. These webs are small in area and are connected to tubular retreats with simple signal or catching threads radiating from entrance.[6]

The middle eyes in the lower or front row are as large as or larger than the eyes that flank them on the outside. The epigynum has projections at its forward corners. The legs have indistinct gray rings.[7]
Species

As of April 2019 it contains sixteen species:[1]

Coras aerialis Muma, 1946 – USA
Coras alabama Muma, 1946 – USA
Coras angularis Muma, 1944 – USA
Coras cavernorum Barrows, 1940 – USA
Coras crescentis Muma, 1944 – USA
Coras furcatus Muma, 1946 – USA
Coras juvenilis (Keyserling, 1881) – USA
Coras kisatchie Muma, 1946 – USA
Coras lamellosus (Keyserling, 1887) – USA, Canada[8]
Coras medicinalis (Hentz, 1821) – USA, Canada
Coras montanus (Emerton, 1890) – USA, Canada
Coras parallelis Muma, 1944 – USA
Coras perplexus Muma, 1946 – USA
Coras seorakensis Seo, 2014 – Korea
Coras taugynus Chamberlin, 1925 – USA
Coras tennesseensis Muma, 1946 – USA

References

"Gen. Coras Simon, 1898". World Spider Catalog. Natural History Museum Bern. Retrieved 2019-05-07.
Simon, E. (1898). Histoire naturelle des araignées. doi:10.5962/bhl.title.51973.
Wang, Xin-ping (2002), "A Generic-level Revision of the Spider Subfamily Coelontinae (Araneae, Amaurobiidae)", Bulletin of the American Museum of Natural History, 269 (269): 1, doi:10.1206/0003-0090(2002)269<0001:AGLROT>2.0.CO;2, S2CID 83668330
Hentz, N. M. (1821). "A notice concerning the spiders whose web is used in medicine". Journal of the Academy of Natural Sciences of Philadelphia. 2: 53–55. Retrieved 2016-09-07.
Kaston, B. J. How to Know the Spiders. p. 172.
Foelix. Biology of Spiders. p. 122.
Kaston, B. J. Spiders of Connecticut. pp. 279–281.
"Ojibway Prairie Complex Checklist of spiders (Araneae), 2014-2015" (PDF). Retrieved 2016-03-18.