Phidippus princeps
$19.00 – $400.00Phidippus 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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Ant-mimic spider – Synemosyna formica, Mansfield, CT
$19.00 – $400.00Ant mimicry or myrmecomorphy is mimicry of ants by other organisms. Ants are abundant all over the world, and potential predators that rely on vision to identify their prey, such as birds and wasps, normally avoid them, because they are either unpalatable or aggressive. Some arthropods mimic ants to escape predation (protective mimicry), while others mimic ants anatomically and behaviourally to hunt ants (aggressive mimicry).[1]
To overcome ants’ powerful defences, mimics may imitate ants chemically (Wasmannian mimicry) with ant-like pheromones, visually (as in Batesian mimicry, though the purpose may also be aggressive mimicry), or by copying microstructure for tactile mimicry.[2]
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Latrodectus hesperus, Black Widow (Male)
$19.00 – $400.00Latrodectus 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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Ant-mimic spider – Synemosyna formica, Mansfield, CT
$19.00 – $400.00Ant mimicry or myrmecomorphy is mimicry of ants by other organisms. Ants are abundant all over the world, and potential predators that rely on vision to identify their prey, such as birds and wasps, normally avoid them, because they are either unpalatable or aggressive. Some arthropods mimic ants to escape predation (protective mimicry), while others mimic ants anatomically and behaviourally to hunt ants (aggressive mimicry).[1]
To overcome ants’ powerful defences, mimics may imitate ants chemically (Wasmannian mimicry) with ant-like pheromones, visually (as in Batesian mimicry, though the purpose may also be aggressive mimicry), or by copying microstructure for tactile mimicry.[2]
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Ant-mimic spider – Synemosyna formica, Mansfield, CT
$19.00 – $400.00Ant mimicry or myrmecomorphy is mimicry of ants by other organisms. Ants are abundant all over the world, and potential predators that rely on vision to identify their prey, such as birds and wasps, normally avoid them, because they are either unpalatable or aggressive. Some arthropods mimic ants to escape predation (protective mimicry), while others mimic ants anatomically and behaviourally to hunt ants (aggressive mimicry).[1]
To overcome ants’ powerful defences, mimics may imitate ants chemically (Wasmannian mimicry) with ant-like pheromones, visually (as in Batesian mimicry, though the purpose may also be aggressive mimicry), or by copying microstructure for tactile mimicry.[2]
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2 of 8 Eyes on a Black Spider (Unidentified) Coventry CT
$19.00 – $400.00Spiders have primarily four pairs of eyes on the top-front area of the cephalothorax, arranged in patterns that vary from one family to another.[8] The principal pair at the front are of the type called pigment-cup ocelli (“little eyes”), which in most arthropods are only capable of detecting the direction from which light is coming, using the shadow cast by the walls of the cup. However, in spiders these eyes are capable of forming images.[19][20]The other pairs, called secondary eyes, are thought to be derived from the compound eyes of the ancestral chelicerates, but no longer have the separate facets typical of compound eyes. Unlike the principal eyes, in many spiders these secondary eyes detect light reflected from a reflective tapetum lucidum, and wolf spiders can be spotted by torch light reflected from the tapeta. On the other hand, jumping spiders’ secondary eyes have no tapeta.[8]
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Abdomen of Latrodectus hesperus, Black Widow (Male), unfortunately lost a leg from last molt (Copy)
$19.00 – $400.00Latrodectus 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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Arachnid in Amber
$19.00 – $400.00The 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 – $400.00Phidippus 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 – $400.00Phidippus 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 – $400.00Theridiidae 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 – $400.00A 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 – $400.00Spiders (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 – $400.00Ixodes 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 (Copy)
$19.00 – $400.00Eris is a genus of the spider family Salticidae (jumping spiders). It is not a large spider and, although it is prone to biting, is not venomous to humans.
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Nursery web spider (Pisauridae), Coventry, CT, Fairly Aggressive, 5.8.15
$19.00 – $400.00Nursery 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.