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Thomisidae
The Thomisidae are a family of spiders, including about 170 genera and over 2,100 species. The common name crab spider is often linked to species in this family, but is also applied loosely to many other families of spiders. Many members of this family are also known as flower spiders or flower crab spiders. Description Members of this family of spiders do not spin webs, and are ambush predators. The two front legs are usually longer and more robust than the rest of the legs. The back two legs are smaller, and are usually covered in a series of strong spines. They have dull colorations such as brown, grey, or very bright green, pink, white or yellow. They gain their name from the shape of their body, and they usually move sideways or backwards. These spiders are quite easy to identify and can very rarely be confused with Sparassidae family, though the crab spiders are usually smaller. Etymology Spiders in this family are called "crab spiders" due to their resemblance to cr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Misumena Vatia
''Misumena vatia'' is a species of crab spider found in Europe and North America. In North America, it is called the goldenrod crab spider or flower (crab) spider,Acorn, John and Sheldon, Ian. (2003). ''Bugs of Ontario'' Edmonton: Lone Pine Publishing as it is commonly found hunting in Solidago, goldenrod sprays and Asclepias, milkweed plants. They are called crab spiders because of their unique ability to walk sideways as well as forwards and backwards. Both males and females of this species progress through several molts before reaching their adult sizes, though females must molt more to reach their larger size. Females can grow up to while males are quite small, reaching at most. ''Misumena vatia'' are usually yellow or white or a pattern of these two colors. They may also present with pale green or pink instead of yellow, again, in a pattern with white. They have the ability to change between these colors based on their surroundings through the molting process. They have a c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomisus Onustus
''Thomisus onustus'' is a crab spider belonging to the genus ''Thomisus''. These spiders are found across Europe, North Africa, and parts of the Middle East and Asia. ''T. onustus'' reside in flowers in lowland vegetation. Females are distinguished by their larger size and ability to change color between white, yellow, and pink as a means of matching flower color. This cryptic mimicry allows them to both evade predators and enhance insect prey capture abilities. Males are smaller, more slender, and drab in coloration, usually green or brown. ''T. onustus'' is also distinguished from other relatives by its distinct life cycle patterns in which spiderlings emerge in either late summer or early spring. Furthermore, ''T. onustus'' have developed a mutualistic relationship with host plants where spiders feed on and/or deter harmful florivores while benefiting from the plant's supply of pollen and nectar, which ''T. onustus'' spiders are able to use as food sources, especially during per ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Angaeus Sp
''Angaeus'' is a genus of Asian crab spiders first described by Tamerlan Thorell in 1881. It is considered a senior synonym of ''Paraborboropactus''. Species it contained twelve species, found in Asia: *'' Angaeus canalis'' (Tang & Li, 2010) – China *'' Angaeus christae'' Benjamin, 2013 – Borneo *'' Angaeus comatulus'' Simon, 1909 – Vietnam *'' Angaeus lenticulosus'' Simon, 1903 – China, Vietnam *'' Angaeus liangweii'' (Tang & Li, 2010) – China *'' Angaeus pentagonalis'' Pocock, 1901 – India (mainland, Andaman Is.) *'' Angaeus pudicus'' Thorell, 1881 (type) – Indonesia (Moluccas, Seram Island) *'' Angaeus rhombifer'' Thorell, 1890 – China, Myanmar, Vietnam, Malaysia, Singapore, Indonesia (Sumatra), Borneo *'' Angaeus rhombus'' (Tang & Li, 2009) – China *'' Angaeus verrucosus'' Benjamin, 2017 – Malaysia (Borneo) *''Angaeus xieluae ''Angaeus'' is a genus of Asian Thomisidae, crab spiders first described by Tamerlan Thorell in 1881. It is considered a Synonym ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomisus Spectabilis
''Thomisus spectabilis'', also known as the white crab spider or Australian crab spider, is a small spider found in Australia and far east Asia. The body length of the female is up to 10 mm, the male 6.2 mm. Including legs, the spider is around 3 cm across.Australian Spiders in Colour - Ramon Mascord 1970 SBN 589 07065 7, page 48 This spider is usually white, though sometimes may appear yellow. The legs and head appear almost translucent. ''Thomisus spectabilis'' is an ambush predator, often seen resting in flowers of its same color. Its egg sacs are laid in a folded leaf, and the cream colored eggs, typically 1 mm in diameter, range between 200 and 370 in number. These spiders primarily eat insects and their preference for symmetry helps them in capturing pollinating insects such as butterflies and bees.Astrid M. Heiling, Ken Cheng, Marie E. Herberstein, Exploitation of floral signals by crab spiders (''Thomisus spectabilis'', Thomisidae), ''Behavioral Ec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Xysticus
''Xysticus'' is a genus of ground crab spiders described by C. L. Koch in 1835, belonging to the order Araneae, family Thomisidae. The genus name is derived from the Ancient Greek root ''xyst'', meaning "scraped, scraper". Description ''Xysticus'' and '' Coriarachne'' are dark brown or reddish-brown crab spiders often encountered on weeds or trees. While similar to the 'flower spiders', they tend to have shorter, sturdier legs. Many, but not all, species have abdomens more patterned than most ''Thomisus'' species, rather like some of the ''Synema'' species. Some however, that are more terrestrial, resemble earth in colour and texture. Most species of the genus Xysticus are small to medium sized spiders. They show a sexual dimorphism in size. Females of typical species reach a maximum of of body length, while their males are about long, about half the size of the females. The basic colour of these species is usually brown, beige or gray. The prosoma is sometimes slightly smal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Thomisus Onustus In Behbahan, Iran
''Thomisus'' is a genus of crab spiders (family Thomisidae) with around 142 species species description, described. The genus includes species that vary widely in their ecology, with some that are ambush predators that feed on insects visiting flowers. Like several other genera in the family Thomisidae, they are sometimes referred to as flower crab spiders, from their crab-like motion and their way of holding their front legs, reminiscent of a crab spreading its claws as a threat. Description and behavior As with most ''Thomisidae'' species, ''Thomisus'' exhibit sexual size dimorphism: females are in length, whereas males are only . Many species are brightly colored, usually matching the color of the flower in which they are waiting in ambush. Not all species are flower-dwelling, but among those that are, at least some species can change their colour over a period of some days to match the flower colour. Studies suggest that bees are inclined to avoid a flower that contains a s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Misumena Vatia Female Luc Viatour 1
''Misumena'' is a genus of crab spiders sometimes referred to as flower crab spiders. They are similar in appearance to several other genera in the family Thomisidae, such as ''Misumenoides'' and ''Mecaphesa''. ''Misumena vatia'', the goldenrod crab spider, is a North American species commonly seen hunting in Solidago, goldenrod (''Solidago'') sprays in autumn. It can change its color between white and yellow to match the flower it is sitting on. The color change takes a few days. Species , the World Spider Catalog listed the following 40 species: References * (2008)The world spider catalog version 8.5. ''American Museum of Natural History''. Thomisidae genera Cosmopolitan spiders Taxa named by Pierre André Latreille {{Thomisidae-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aphantochilus
''Aphantochilus'' is a genus of ant-mimicking crab spiders that was first described by Octavius Pickard-Cambridge in 1871. it contains three species, found in Paraguay, Brazil, Argentina, and Panama: '' A. cambridgei'', '' A. inermipes'', and '' A. rogersi''. It is a senior synonym In taxonomy, the scientific classification of living organisms, a synonym is an alternative scientific name for the accepted scientific name of a taxon. The botanical and zoological codes of nomenclature treat the concept of synonymy differently. ... of ''Cryptoceroides''. ''A. rogersi'' is polymorphic. References Further reading * * * * {{Taxonbar, from=Q2858214 Thomisidae genera Spiders of South America Taxa named by Octavius Pickard-Cambridge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Misumenops Callinurus By André Nogueira - 362594012
''Misumenops'' is a common genus of crab spider with more than 50 described species. The majority of the species of ''Misumenops'', more than 80, have been transferred to 13 genera: '' Ansiea'', '' Demogenes'', '' Diaea'', '' Ebelingia'', '' Ebrechtella'', '' Henriksenia'', '' Heriaeus'', '' Mecaphesa'', '' Micromisumenops '', '' Misumena'', '' Misumenoides'', '' Misumessus'', and '' Runcinioides''. Distribution Most species of this genus occur in the Americas from Canada to Argentina, with only a few exceptions: * Sixteen species are found on Hawaii, one ('' M. dalmasi'') on the Marquesas Islands, one '' M. melloloitaoi'' on Tahiti, and one '' M. rapaensis'' on Rapa Island. * Two species ('' M. forcatus'' and '' M. zhangmuensis'') occur in China, '' M. armatus'' in Central Asia, '' M. turanicus'' in Uzbekistan, '' M. khandalaensis'' in India, '' M. morrisi'' on the Philippines. * '' M. rubrodecoratus'' occurs in Africa, '' M. decolor'' only in Ethiopia. Name The genus na ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spider
Spiders (order (biology), order Araneae) are air-breathing arthropods that have eight limbs, chelicerae with fangs generally able to inject venom, and spinnerets that extrude spider silk, silk. They are the largest order of arachnids and rank seventh in total species diversity among all Order (biology), orders of organisms. Spiders are found worldwide on every continent except Antarctica, and have become established in nearly every land habitat. , 53,034 spider species in 136 Family (biology), families have been recorded by Taxonomy (biology), taxonomists. However, there has been debate among scientists about how families should be classified, with over 20 different classifications proposed since 1900. Anatomy, Anatomically, spiders (as with all arachnids) differ from other arthropods in that the usual body segmentation (biology), segments are fused into two Tagma (biology), tagmata, the cephalothorax or prosoma, and the opisthosoma, or abdomen, and joined by a small, cylindr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sicarius (genus)
''Sicarius'' is a genus of recluse spiders that are potentially medically significant to humans. It is one of three genera in its family, all venomous spiders known for a bite that can induce loxoscelism. They live in deserts and arid regions of the Neotropics, and females use a mixture of sand and silk when producing egg sacs. The genus name is Latin for assassin. Description ''Sicarius'' spiders can grow up to long, and have six eyes arranged into three groups of two (known as "dyads"). Physically, they resemble crab spiders and members of the '' Homalonychus'' genus. They lack the characteristic violin-shaped marking of the more well-known members of its family Sicariidae, the recluse spiders. They can live for a very long time without food or water. Some can live for up to fifteen years, making them among the longest-lived spiders, behind the trap-door spiders and tarantulas, many known to live for twenty to thirty years. The oldest recorded spider is Number 16, a trap-d ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sicariidae
Sicariidae is a family (biology), family of six-eyed spider bite, venomous spiders known for their potentially necrotic bites. The family consists of three genus, genera and about 160 species. Well known spiders in this family include the Loxosceles reclusa, brown recluse spider and the Hexophthalma hahni, six-eyed sand spider. Description ''Loxosceles'', commonly known as "recluse spiders" or "violin spiders", are distributed nearly worldwide in warmer areas. ''Hexophthalma'' and ''Sicarius (spider), Sicarius'', commonly known as "sand spiders" or "assassin spiders", live in the deserts of southern Africa and South America, South to Central America, respectively. They are known for their self-burying behavior and the ability to go long periods without food or water. All members have six eyes arranged in three groups of two (dyads). Violin spiders are usually brownish with a darker brown characteristic violin marking on the cephalothorax. They are also haplogyne, meaning the fema ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
