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Eresidae
Velvet spiders (family Eresidae) are a small group (about 130 species in 9 genera) of spiders almost entirely limited to the Old World, with exception of a few species known from Brazil. In Europe some are commonly called the ladybird spiders Description This family can sometimes be confused with the jumping spiders, or those in the Palpimanidae family. These spiders are usually black or brown in color, thought they can also have brighter colors as pictured. As their common name implies they can look quite smooth and velvety. They usually live in silken tubes under objects, or underground, but the genus ''Stegodyphus,'' builds silken nests. Identification They can be distinguished from most species except the Penestomidae by their semi rectangular carapace and clypeal hood. Thought the can be distinguished from Penestomidae by the eye arrangement, straight anterior eye row and strongly recurved posterior eye row, with the median eyes close together. Social Behavior ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stegodyphus Sarasinorum
''Stegodyphus sarasinorum,'' also known as the Indian cooperative spider, is a species of velvet spider of the family Eresidae. It is native to India, Sri Lanka, Nepal, and Myanmar. This spider is a social spider that exhibits communal predation and feeding, where individuals live in large cooperatively built colonies with a nest or retreat constructed of silk woven using leaves, twigs, and food carcasses, and a sheet web for prey capture. Individual ''S. sarasinorum'' spiders that have attacked prey once are more likely to attack prey again, independent of their body size or hunger level. This is the only member of the family Eresidae that is arboreal, not terrestrial. Description ''Stegodyphus sarasinorum'', like most Eresids, are short, stout spiders lined with several fine hairs. These fine hairs give the spiders an ash-colored appearance. The dorsal side of the abdomen is marked with three longitudinal white stripes and six pairs of dots, which are part of the spider's patte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seothyra
''Seothyra'', commonly known as the buckspoor spiders, buck spoor spiders or just spoor spiders, belong to a sand-dwelling, burrowing genus of Araneomorphae, araneomorph spiders in the family Eresidae. The 13 species are endemic to the arid, sandy flats and semistabilized red dunes of southern Africa. They are sexually dimorphic. The tiny males, which are seldom seen, imitate Camponotus, sugar ants or velvet ants in their appearance and habits, while the females hide in and hunt from their characteristic burrows. They are thermophilous, with males as well as females being most active on hot days. Range and density They occur in Namibia, Botswana and South Africa. In South Africa they are present in northern Limpopo, and the Northern Cape as far south as the Tankwa Karoo. Their distribution is patchy, but when forming conspecific aggregations, their webs may even touch one another. Such clusters may contain thousands of females, with a density of 50 m−2, or locally, 100 to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eresus Kollari
''Eresus kollari'', the ladybird spider, is a spider species in the family Eresidae. It was first described by Walckenaer in 1802, though it was misidentified. It was later correctly described by Rossi in 1846. It is one of the three species into which ''Eresus cinnaberinus'' or ''Eresus niger'' has been divided. It is thought to be endangered. Description Their body as most Velvet spider, velvet spiders, resemble somewhat those in the jumping spider family. The males have a contrasting color, having a black and red coloration, while the females are completely black. The opisthosoma looks velvety, as their common name would imply. Colonies In colonies, they burrow up to 10 cm in depth. Which is usually covered in a funnel web. Females may carry lens shape egg sack containing up to 100 eggs. Which she’ll carry to a sunny place. The juveniles will stay in the females burrow and feed on her after she dies. They usually form small colonies with up to a couple dozen spider ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Eresidae Species
This page lists all described species of the spider family Eresidae accepted by the World Spider Catalog : ''Adonea'' '' Adonea'' Simon, 1873 * '' A. algarvensis'' Wunderlich, 2017 — Portugal * '' A. algerica'' (El-Hennawy, 2004) — Algeria, Israel * '' A. fimbriata'' Simon, 1873 ( type) — Algeria, Tunisia, Greece, Israel ''Dorceus'' '' Dorceus'' C. L. Koch, 1846 * '' D. albolunulatus'' (Simon, 1876) — Algeria * '' D. fastuosus'' C. L. Koch, 1846 ( type) — Tunisia, Senegal, Israel * '' D. latifrons'' Simon, 1873 — Algeria, Tunisia * '' D. quadrispilotus'' Simon, 1908 — Egypt * '' D. trianguliceps'' Simon, 1911 — Tunisia ''Dresserus'' '' Dresserus'' Simon, 1876 * '' D. aethiopicus'' Simon, 1909 — Ethiopia * '' D. angusticeps'' Purcell, 1904 — South Africa * '' D. armatus'' Pocock, 1901 — Uganda * '' D. bilineatus'' Tullgren, 1910 — East Africa * '' D. collinus'' Pocock, 1900 — South Africa * '' D. colsoni'' Tucker, 1920 — South Africa * '' D. darling ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ladybird Spider
''Eresus'', also called ladybird spiders, is a genus of velvet spiders that was first described by Charles Athanase Walckenaer in 1805. Members of the genus formerly called ''Eresus cinnaberinus'' or ''Eresus niger'' are now placed in one of three species: ''Eresus kollari'', ''Eresus sandaliatus'' and '' Eresus moravicus''. Description They resemble both jumping spiders and the spiders in the Palpimanidae, as their bodies look similar, and are as well rather velvety. Males of this genus have a red abdomen, with black spotting, usually taking the form of 4 black spots. While the rest of the body is usually black, with some reddish areas or white areas. Females of this genus are duly colored usually being a grey, brown or black color. Some species having some yellow coloration, thought they are still significantly duller then the males. Identification Males of this genus can usually be distinguished by their unique abdominal pattern. Which in the lateral areas has two pairs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
