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Arachnid in Amber

$19.00 – $400.00

The evolution of spiders has been going on for at least 380 million years, since the first true spiders (thin-waisted arachnids) evolved from crab-like chelicerate ancestors. More than 45,000 extant species have been described, organised taxonomically in 3,958 genera and 114 families.[1] There may be more than 120,000 species.[1] Fossil diversity rates make up a larger proportion than extant diversity would suggest with 1,593 arachnid species described out of 1,952 recognized chelicerates.[2] Both extant and fossil species are described yearly by researchers in the field (see External links for most recent list of fossil species). Major developments in spider evolution include the development of spinnerets and silk secretion.

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Jumping Spider (Phidippus sp.) about 5 cm long and 1.5 com wide-1 specimen

$19.00 – $400.00

Phidippus is a genus in the family Salticidae (jumping spiders). Some of the largest jumping spiders inhabit this genus, and many species are characterized by their brilliant, iridescent green chelicerae. Phidippus is distributed almost exclusively in North America, with the exception of two exported species (Phidippus audax and Phidippus regius).[1] As of 2004, there are 60 valid described species in the genus. Species previously described in Phidippuswhich are found in India and Bangladesh do not belong in this genus.[1]

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Phidippus princeps

$19.00 – $400.00

Phidippus princeps is a rare species of jumping spider found in Canada and the United States. These jumping spiders’ vision exceeds by a factor of ten that of dragonflies, which have the best vision among insects.

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Phidippus princeps

$19.00 – $400.00

Phidippus princeps is a rare species of jumping spider found in Canada and the United States. These jumping spiders’ vision exceeds by a factor of ten that of dragonflies, which have the best vision among insects.

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Theridiidae, Comb footed Spider, Yellow Spider, Mansfield, CT

$19.00 – $400.00

Theridiidae is a large family of spiders, also known as the tangle-web spiders, cobweb spiders and comb-footed spiders. The diverse family includes over 2,200 species in over 100 genera[3] of three-dimensional space-web-builders found throughout the world. Theridiid spiders are entelegyne (have a genital plate in the female) araneomorphecribellate (use sticky capture silk instead of woolly silk) spiders that often build tangle space webs and have a comb of serrated bristles (setae) on the tarsus of the fourth leg

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Pseudoscorpion

$19.00 – $400.00

A pseudoscorpion, also known as a false scorpion or book scorpion, is an arachnidbelonging to the order Pseudoscorpiones, also known as Pseudoscorpionida or Chelonethida.

Pseudoscorpions are generally beneficial to humans since they prey on clothes moth larvae, carpet beetle larvae, booklice, ants, mites, and small flies. They are tiny and inoffensive, and are rarely seen due to their small size, despite being common in many environments. Pseudoscorpions often carry out phoresy, a form of commensalism in which one organism uses another for the purpose of transport.

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(ID Needed) Large Spider, Coventry, CT

$19.00 – $400.00

Spiders (order Araneae) are air-breathing arthropods that have eight legs and chelicerae with fangs that inject venom. They are the largest order of arachnids and rank seventh in total species diversity among all other orders of organisms.[2] Spiders are found worldwide on every continent except for Antarctica, and have become established in nearly every habitat with the exceptions of air and sea colonization. As of November 2015, at least 45,700 spider species, and 113 families have been recorded by taxonomists.[1] However, there has been dissension within the scientific community as to how all these families should be classified, as evidenced by the over 20 different classifications that have been proposed since 1900.[3]

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Ixodes scapularis (Deer Tick)

$19.00 – $400.00

Ixodes is a genus of hard-bodied ticks (family Ixodidae). It includes important disease vectorsof animals and humans (tick-borne disease), and some species (notably Ixodes holocyclus) inject toxins that can cause paralysis. Some ticks in this genus may transmit the pathogenic bacterium Borrelia burgdorferi[3] responsible for causing Lyme disease. Additional organisms that may be transmitted by Ixodes are parasites from the genus Babesia which cause babesiosis, and bacteria from the related genera Anaplasma which cause anaplasmosis.

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Nursery web spider (Pisauridae), Coventry, CT, Fairly Aggressive, 5.8.15

$19.00 – $400.00

Nursery web spiders are spiders of the family Pisauridae. They resemble wolf spiders(family Lycosidae), but they carry their egg sacs by means of their jaws and pedipalps(instead of attaching them to their spinnerets). When the eggs are about to hatch, a mother spider builds a nursery “tent”, puts her egg sac inside, and mounts guard outside. The name “nursery web spider” is especially given to the European species Pisaura mirabilis, but the family also includes fishing spiders and raft spiders.

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Dorsal View of Theridiid (cobweb spider), Coventry, CT

$19.00 – $400.00

Theridiidae is a large family of spiders, also known as the tangle-web spiders, cobweb spiders and comb-footed spiders. The diverse family includes over 2,200 species in over 100 genera[3] of three-dimensional space-web-builders found throughout the world. Theridiid spiders are entelegyne (have a genital plate in the female) araneomorphecribellate (use sticky capture silk instead of woolly silk) spiders that often build tangle space webs and have a comb of serrated bristles (setae) on the tarsus of the fourth leg.

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Daddy Longleg or Harvestman (Opiliones). Indiana, PA

$19.00 – $400.00

The Opiliones /oʊˌpɪliˈoʊniːz/ or /ɒˌpɪliˈoʊnɛz/ (formerly Phalangida) are an order of arachnids colloquially known as harvestmen, harvesters or daddy longlegs. Although both harvestmen and spiders are arachnids, the two orders are not otherwise closely related. As of December 2011, over 6,500 species of harvestmen have been discovered worldwide,[1] although the total number of extant species may exceed 10,000.[2] The order Opiliones includes five suborders: Cyphophthalmi, Eupnoi, Dyspnoi, Laniatores, and the recently named Tetrophthalmi.[3] With the exception of the Dyspnoi (which are restricted to North America and Eurasia), representatives of each can be found on every continent except Antarctica. Well-preserved fossils have been found in the 400-million-year-old Rhynie cherts of Scotland, and 305-million-year-old rocks in France, which look surprisingly modern, indicating that their basic body plan appeared very early on,[4] and, at least in some taxa, has changed little since that time. Their phylogenetic position within the Arachnida is disputed: their closest relatives may be the mites (Acari) or the Novogenuata (the Scorpiones, Pseudoscorpiones, and Solifugae).[5] Although superficially similar to and often misidentified as spiders (order Araneae), the Opiliones are a distinct order that is not closely related to spiders. They can be easily distinguished from long-legged spiders by their fused body regions and single pair of eyes in the middle of the cephalothorax. Spiders have a distinct abdomen that is separated from the cephalothorax by a constriction, and they have three to four pairs of eyes, usually around the margins of the cephalothorax.

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Latrodectus hesperus, Black Widow (Male), unfortunately lost a leg from last molt

$19.00 – $400.00

Latrodectus is a genus of spiders in the family Theridiidae, most of which are commonly known as widow spiders. The genus contains 31 recognized species[2] distributed worldwide, including the North American black widows (L. mactans, L. hesperus, and L. variolus), the button spiders of Africa, and the Australian redback spider. Species vary widely in size. In most cases, the females are dark-coloured and readily identifiable by reddish markings on the abdomen, which are often (but not always) hourglass-shaped.

The venomous bite of these spiders is considered particularly dangerous because of the neurotoxin latrotoxin, which causes the condition latrodectism, both named after the genus. The female black widow has unusually large venom glands and its bite can be particularly harmful to humans. However, despite the genus’ notoriety, Latrodectus bites are rarely fatal. Only female bites are dangerous to humans.

 

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Patterns in Spider Abdomen

$19.00 – $400.00

The anatomy of spiders includes many characteristics shared with other arachnids. These characteristics include bodies divided into two tagmata (sections or segments), eight jointed legs, no wings or antennae, the presence of chelicerae and pedipalps, simple eyes, and an exoskeleton, which is periodically shed.

Spiders also have several adaptations that distinguish them from other arachnids. All spiders are capable of producing silk of various types, which many species use to build webs to ensnare prey. Most spiders possess venom, which is injected into prey (or defensively, when the spider feels threatened) through the fangs of the chelicerae. Male spiders have specialized pedipalps that are used to transfer sperm to the female during mating. Many species of spiders exhibit a great deal of sexual dimorphism.[1]

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Pseudoscorpion

$19.00 – $400.00

A pseudoscorpion, also known as a false scorpion or book scorpion, is an arachnidbelonging to the order Pseudoscorpiones, also known as Pseudoscorpionida or Chelonethida.

Pseudoscorpions are generally beneficial to humans since they prey on clothes moth larvae, carpet beetle larvae, booklice, ants, mites, and small flies. They are tiny and inoffensive, and are rarely seen due to their small size, despite being common in many environments. Pseudoscorpions often carry out phoresy, a form of commensalism in which one organism uses another for the purpose of transport.

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Hentzia, Orange Jumping Spider, Coventry, CT

$19.00 – $400.00

The jumping spider family (Salticidae) contains over 600 described genera and more than 5800 described species,[1] making it the largest family of spiders with about 13% of all species.[2] Jumping spiders have some of the best vision among arthropods and use it in courtship, hunting, and navigation. Although they normally move unobtrusively and fairly slowly, most species are capable of very agile jumps, notably when hunting, but sometimes in response to sudden threats or crossing long gaps. Both their book lungs and tracheal system are well-developed, and they use both systems (bimodal breathing). Jumping spiders are generally recognized by their eye pattern. All jumping spiders have four pairs of eyes, with the anterior median pair being particularly large.