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Eresus Moravicus
''Eresus moravicus'' is a spider species in the family Eresidae found in Austria, Hungary, Czechia, Serbia, Slovakia and Albania. Being found mainly in rocky steppes. It is named after the eastern part of the Czech Republic, Moravia, which is where the type species was found. ''E. moravicus'' is one of the three species into which ''Eresus cinnaberinus'' or ''Eresus niger'' has been divided. Description This is the largest ''Eresus'' species found in Central Europe, males are black and red in color. the first two legs are black, with the last two being red. The opisthosoma is red with the carapace being black. While the females are mostly black, except with orange hairs on the from part of the prosoma. Identification ''E. moravicus'' can be distinguished from the other two species by the totally red hind legs in males and the orange hairs on prosoma in females, among other features. To identify them from the Mediterranean species which also share this trait, it is speci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eresus Cinnaberinus
''Eresus cinnaberinus'' and ''Eresus niger'' are names formerly used for a group of spiders in the genus '' Eresus'' now divided into three species, '' E. kollari'', '' E. sandaliatus'' and '' E. moravicus''. The three species differ in size, colour pattern, shape of prosoma and copulatory organs, and habitat, with no morphologically intermediate forms. As eastern and western ''E. kollari'' are genetically different, with the eastern form likely a hybrid between "pure" ''E. kollari'' and ''E. moravicus'', it is possible that later revisions will partition it into additional species. Both ''Eresus cinnaberinus'' and ''Eresus niger'' are now regarded as '' nomina dubia''. Distributions * ''E. kollari'' has the widest distribution of the three species, occurring from Spain and Portugal to Novosibirsk in Russia. * ''E. moravicus'' occurs in the Pannonian region, the Balkan Peninsula and parts of the Austrian Alps The Central Eastern Alps (german: Zentralalpen or Zentrale Ostalpe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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] |
Carapace
A carapace is a Dorsum (biology), dorsal (upper) section of the exoskeleton or shell in a number of animal groups, including arthropods, such as crustaceans and arachnids, as well as vertebrates, such as turtles and tortoises. In turtles and tortoises, the underside is called the plastron. Crustaceans In crustaceans, the carapace functions as a protective cover over the cephalothorax (i.e., the fused head and thorax, as distinct from the abdomen behind). Where it projects forward beyond the eyes, this projection is called a rostrum (anatomy), rostrum. The carapace is Calcification, calcified to varying degrees in different crustaceans. Zooplankton within the phylum Crustacea also have a carapace. These include Cladocera, ostracods, and Isopoda, isopods, but isopods only have a developed "cephalic shield" carapace covering the head. Arachnids In arachnids, the carapace is formed by the fusion of prosomal tergites into a single Plate (animal anatomy), plate which carries the e ... [...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] |
Eresus Tricolor
''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] |
Eresus Ignicomis
''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] |
Spermatheca
The spermatheca (pronounced plural: spermathecae ), also called receptaculum seminis (plural: receptacula seminis), is an organ of the female reproductive tract in insects, e.g. ants, bees, some molluscs, oligochaeta worms and certain other invertebrates and vertebrates. Its purpose is to receive and store sperm from the male or, in the case of hermaphrodites, the male component of the body. Spermathecae can sometimes be the site of fertilization when the oocytes are sufficiently developed. Some species of animal have multiple spermathecae. For example, certain species of earthworms have four pairs of spermathecae—one pair each in the 6th, 7th, 8th, and 9th segments. The spermathecae receive and store the spermatozoa of another earthworm during copulation. They are lined with epithelium and are variable in shape: some are thin, heavily coiled tubes, while others are vague outpocketings from the main reproductive tract. It is one of the many variations in sexual reproduct ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chelicerae
The chelicerae () are the mouthparts of the subphylum Chelicerata, an arthropod group that includes arachnids, horseshoe crabs, and sea spiders. Commonly referred to as "jaws", chelicerae may be shaped as either articulated fangs, or similarly to pincers. Some chelicerae, such as those found on nearly all spiders, are hollow and contain (or are connected to) venom glands, and are used to inject venom into prey or a perceived threat. In ''Pisaurina mira'', also known as the nursery web spider, the chelicerae are utilized to snatch the prey once it becomes within reach, facilitating the "sit-and-wait ambush predator" behavior. Both pseudoscorpions and harvestmen have structures on their chelicerae that are used for grooming (papillae in pseudoscorpions, cheliceral teeth in Opiliones). Types Chelicerae can be divided into three kinds: jackknife chelicerae, scissor chelicerae, and 3-segmented chelate chelicerae. Jackknife chelicerae The jackknife chelicera is subchelate (with ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eresus Ruficapillus
''Eresus ruficapillus'' is a spider species found in Sicily and Croatia. See also * List of Eresidae species References Eresidae Spiders of Europe Spiders described in 1846 {{Araneomorphae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mediterranean Sea
The Mediterranean Sea is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean Basin and almost completely enclosed by land: on the north by Western and Southern Europe and Anatolia, on the south by North Africa, and on the east by the Levant. The Sea has played a central role in the history of Western civilization. Geological evidence indicates that around 5.9 million years ago, the Mediterranean was cut off from the Atlantic and was partly or completely desiccated over a period of some 600,000 years during the Messinian salinity crisis before being refilled by the Zanclean flood about 5.3 million years ago. The Mediterranean Sea covers an area of about , representing 0.7% of the global ocean surface, but its connection to the Atlantic via the Strait of Gibraltar—the narrow strait that connects the Atlantic Ocean to the Mediterranean Sea and separates the Iberian Peninsula in Europe from Morocco in Africa—is only wide. The Mediterranean Sea e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glossary Of Spider Terms
This glossary describes the terms used in formal descriptions of spiders; where applicable these terms are used in describing other arachnids. Links within the glossary are shown . Terms A Abdomen or opisthosoma: One of the two main body parts ( tagmata), located towards the posterior end; see also Abdomen § Other animals Accessory claw: Modified at the tip of the in web-building spiders; used with to grip strands of the web Anal tubercle: A small protuberance (tubercule) above the through which the anus opens Apodeme → Apophysis (plural apophyses): An outgrowth or process changing the general shape of a body part, particularly the appendages; often used in describing the male → Atrium (plural atria): An internal chamber at the entrance to the in female haplogyne spiders B Bidentate: Having two Book lungs: Respiratory organs on the ventral side (underside) of the , in front of the , opening through narrow slits; see also Book lungs Branchial operculum â ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cephalothorax
The cephalothorax, also called prosoma in some groups, is a tagma of various arthropods, comprising the head and the thorax fused together, as distinct from the abdomen behind. (The terms ''prosoma'' and ''opisthosoma'' are equivalent to ''cephalothorax'' and ''abdomen'' in some groups.) The word ''cephalothorax'' is derived from the Greek words for head (, ') and thorax (, '). This fusion of the head and thorax is seen in chelicerates and crustaceans; in other groups, such as the Hexapoda (including insects), the head remains free of the thorax. In horseshoe crabs and many crustaceans, a hard shell called the carapace covers the cephalothorax. Arachnid anatomy Fovea The fovea is the centre of the cephalothorax and is located behind the head (only in spiders).Dalton, Steve (2008). ''Spiders; The Ultimate Predators''. A & C Black, London. P.p. 19. . It is often important in identification. It can be transverse or procurved Smith, A. M. (1990c). Baboon spiders: Tarantulas of Afri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
