Araneus gemma

Last updated

Araneus gemma
White cat faced spider.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Chelicerata
Class: Arachnida
Order: Araneae
Infraorder: Araneomorphae
Family: Araneidae
Genus: Araneus
Species:
A. gemma
Binomial name
Araneus gemma
McCook, 1888
Synonyms

Epeira gemma
Araneus pirus
Araneus gemmus

Araneus gemma, commonly known as the cat-faced spider (a name shared with Araneus gemmoides ) or jeweled orbweaver spider, is a common outdoor orb-weaver spider found in the western United States and Canada.

Like most Araneus species, A. gemma is harmless to humans. It contains a venomous toxin of low molecular weight called argiotoxin, [1] that antagonizes the actions of the neurotransmitter glutamate. [2] Dopamine was also identified in the venom of A. gemma in a concentration of 4.3 nM. [3]

The web silk of the A. gemma ranges from 1 to 4 μm in diameter. [4]

Related Research Articles

<i>Araneus diadematus</i> Species of spider

The spider species Araneus diadematus is commonly called the European garden spider, cross orbweaver, diadem spider, orangie, cross spider, and crowned orb weaver. It is sometimes called the pumpkin spider, although this name is also used for a different species, Araneus marmoreus. It is an orb-weaver spider found in Europe, where it is native, and North America, where it was introduced.

<span class="mw-page-title-main">Common shrew</span> Species of mammal

The common shrew, also known as the Eurasian shrew, is the most common shrew, and one of the most common mammals, throughout Northern Europe, including Great Britain, but excluding Ireland. It is 55 to 82 millimetres long and weighs 5 to 12 grams, and has velvety dark brown fur with a pale underside. It is one of the rare venomous mammals. Juvenile shrews have lighter fur until their first moult. The common shrew has small eyes, a pointed, mobile snout and red-tipped teeth. It has a life span of approximately 14 months.

<i>Araneus quadratus</i> Species of spider

Araneus quadratus, the four-spot orb-weaver, is a common orb-weaver spider found in Europe and Central Asia, and as far as the Kamchatka Peninsula and Japan. Females can reach 17 mm in length, especially when gravid, with males around half that. They are quite variable in appearance, ranging from brown to bright orange or green, but they always have the characteristic four white spots on the abdomen. The darker color morphs are easier to identify, due to the contrast between the white spots and the rest of the body. The legs are sometimes brightly striped.

<span class="mw-page-title-main">Zebra spider</span> Species of spider

The zebra spider is a common jumping spider of the Northern Hemisphere. Their common name refers to their vivid black-and-white colouration, whilst their scientific name derives from Salticus from the Latin for “dancing”, in reference to their agility, and the Greek scenicus, translating to “theatrical” or “of a decorative place,” in reference to the flashy, zebra-like coloration of the species.

<i>Araneus</i> Genus of spiders

Araneus is a genus of common orb-weaving spiders. It includes about 650 species, among which are the European garden spider and the barn spider. The genus was erected by Carl Alexander Clerck in 1757.

<i>Araneus alsine</i> Species of spider

Araneus alsine, the strawberry spider or orange wheelweaving spider, is a species of the orb-weaving spider family, Araneidae.

<span class="mw-page-title-main">Barn spider</span> Species of spider

The barn spider is a common orb-weaver spider native to North America. They are around three-quarters of an inch (20 mm) in length and are usually yellow and brown in color. They often construct their webs in wooden human structures, hence their common name. The species is notable for being the basis for the character Charlotte in the book Charlotte's Web by American writer E. B. White.

<span class="mw-page-title-main">Milichiidae</span> Family of flies

Milichiidae are a family of flies. Most species are very small and dark. Details of their biology have not yet been properly studied, but they are best known as kleptoparasites of predatory invertebrates, and accordingly are commonly known as freeloader flies or jackal flies. However, because of the conditions under which many species breed out, they also are known as filth flies.

Argiotoxins represent a class of polyamine toxins isolated from the orb-weaver spider.

<i>Araneus marmoreus</i> Species of spider

Araneus marmoreus, commonly called the marbled orbweaver, is a species of spider belonging to the family Araneidae. It is sometimes also called the pumpkin spider from the resemblance of the female's inflated abdomen to an orange pumpkin. It has a Holarctic distribution.

Araneus asiaticus is a spider in the genus Araneus, found in Kyrgyzstan.

<i>Svenska Spindlar</i> 1757 arachnology text by Carl Alexander Clerck

The book Svenska Spindlar or Aranei Svecici is one of the major works of the Swedish arachnologist and entomologist Carl Alexander Clerck and was first published in Stockholm in the year 1757. It was the first comprehensive book on the spiders of Sweden and one of the first regional monographs of a group of animals worldwide. The full title of the work is Svenska Spindlar uti sina hufvud-slägter indelte samt under några och sextio särskildte arter beskrefne och med illuminerade figurer uplysteAranei Svecici, descriptionibus et figuris æneis illustrati, ad genera subalterna redacti, speciebus ultra LX determinati, and included 162 pages of text and six colour plates. It was published in Swedish, with a Latin translation printed in a slightly smaller font below the Swedish text.

<i>Araneus angulatus</i> Species of spider

Araneus angulatus is a species of orb-weaving spiders found in the Palearctic realm. It resembles the European garden spider, Araneus diadematus, but has distinctive tubercles on its abdomen. The species was first described in Aranei Svecici in 1757, where it was the first species described, making Araneus angulatus the first scientific name of an animal that is still in use.

<i>Araneus mitificus</i> Species of spider

Araneus mitificus, commonly known as the kidney garden spider or pale orb weaver is a species of orb-weaver spider found in South, East, and Southeast Asia.

<i>Araneus gemmoides</i> Species of spider

Araneus gemmoides, commonly known as the jewel spider and cat-faced spider, is a common, outdoor, orb-weaver spider found in Canada and the USA. It is considered harmless and has a low-toxicity venom. A. gemmoides is a useful natural predator for insects.

<i>Araneus circe</i> Species of spider

Araneus circe is an orb-weaving spider species with a Palearctic distribution.

<i>Araneus pallidus</i> Species of spider

Araneus pallidus is an orb-weaving spider found in Southwest Europe and Northwest Africa (Algeria).

<i>Araneus bicentenarius</i> Species of spider

Araneus bicentenarius, the giant lichen orbweaver, is a species of orb weaver in the family Araneidae. It is found in the USA and Canada.

<i>Araneus trifolium</i> Species of spider

Araneus trifolium, the shamrock orbweaver, is a species of orb weaver in the family Araneidae. It is found throughout the USA and in Canada.
The abdomen of Araneus trifolium can have various colors. Most commonly, it is seen in a beige or brown color. Occasionally, the abdomen of the spider has a greenish touch to the brown color or it may even be yellow or orange. In the latter case, Araneus trifolium is sometimes confused with the orange orb weaver species Araneus marmoreus, also called pumpkin spider. The shamrock spider can be distinguished from other orb weaver species by the several white dots on its back. The legs of Araneus trifolium are usually brown or beige colored with several white bands around the joints.
The shamrock spider creates a web to catch its prey. Small flying insects who fly into the web will get stuck in the sticky net. The web of an orb weaver can be up to two feet (60cm) in diameter.
The bite of a shamrock spider can be painful but it is not dangerous for humans with effects comparable to a bee sting.

<i>Araneus juniperi</i> Species of spider

Araneus juniperi is a species of spider in the orb weaver family (Araneidae). It is found in the USA and Canada.

References

  1. K F Tipton (ed). Neurotoxins in Neurobiology Taylor & Francis, 1994; page 7. ISBN   013614991X
  2. Geoffrey A. Cordell. Chemistry and Pharmacology (Google eBook). Academic Press, Jul 27, 1995; page 69. ISBN   0124695469.
  3. Spider Physiology and Behaviour: Physiology Academic Press, Nov 26, 2011; page 23. ISBN   0123876680
  4. David Kaplan, Kevin McGrath. Protein-Based Materials Springer, 1997; page 113. ISBN   0817638482.