What Is The Scientific Name Of A Spider?



Spiders are predatory invertebrate animals with two body segments, eight legs, no chewing mouth parts and no wings.

They are classified in the order Araneae, one of several orders within the larger class of arachnids, a group which also contains scorpions, whip scorpions, mites, ticks, and opiliones (harvestmen).

The study of spiders is known as arachnology.

All spiders produce silk, a thin, strong protein strand extruded by the spider from spinnerets most commonly found on the end of the abdomen.

Many species use it to trap insects in webs, although there are many species that hunt freely.

Silk can be used to aid in climbing, form smooth walls for burrows, build egg sacs, wrap prey, and temporarily hold sperm, among other applications.

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What Is The Scientific Name Of A Spider?

More about spiders

The little iridescent green Fighting Spider (right) which many Singapore children are familiar with is a member of Family Salticidae and is given the scientific name Thiania bhamoensis. Thiania is the name of the genus to which the Fighting Spider Thiania bhamoensis belongs.

A scientific name is often followed by the name of the person who first described the animal, and the year of description. Thus, the Fighting Spider is referred to by scientists as Thiania bhamoensis Thorell 1877, meaning the spider was first described by the Swedish arachnologist T. Thorell in 1877. If the name of the person is given in brackets, it means the spider was first described as a member of a different genus and has since been transferred to the genus now represented in the current scientific name. An example is the Huntsman Spider Heteropoda venotoria (Linne) 1767. Linne first gave the name Aranea venotoria to the spider in 1767 but Thorell decided to transfer the spider to the genus Heteropoda in 1878. Linne’s name thus appears within brackets.



Scientific Classification

Fast Facts

Fun Facts

  1. Although insects and spiders belong to the same taxonomic phylum, Arthropoda, they look very different from one another. These physical differences are what separate them in to two classes: Insecta and Arachnida.
  2. Though spiders have simple eyes, they usually are not well developed. Instead, spiders use vibrations, which they can sense on the surface of their web. The tiny bristles distributed all over a spider’s body surface, are actually sensitive tactile receptors. These bristles are sensitive to a variety of stimuli including touch, vibration, and airflow.
  3. There are approximately 40,000 known species of spiders, which may be only one third of the actual number of spider species living on the planet.
  4. Spiders are arthropods, so their skeletal system of their body is the outermost layer. The hard exoskeleton helps the spider maintain moisture and not dry out. The bristles are not hair, but actually part of their exoskeleton.
  5. The word spider is from an Old English verb spinnan, meaning «to spin.» Web weavers use the tiny claws at the base of each leg, in addition to their notched hairs, to walk on their webs without sticking to them.
  6. Spiders digest their food outside their body. After the prey is captured, spiders release digestive enzymes from their intestinal tract and cover the insect. These enzymes break down the body, which allows the spider suck up the liquid prey.

Ecology and Conservation

Spiders are the most abundant and diverse of all terrestrial predators. Spiders not only help control insect populations (including those insects that cause human disease), but they are food for other species too. They are widespread, living in habitats that range from tundra to tropical lowland forests. Currently, the U.S. Fish and Wildlife Service only classify two species of spiders as endangered.


Comstock, John. 1980. The Spider Book. Ithaca: Cornell University Press.

de Vosjoli, Philippe. Arachnomania The General Care and Maintenance of Tarantulas and Scorpions. Lakeside, California: Advanced Vivarium Systems, 1991.

Levi, Herbert W., and Levi, Lorna R. Spiders and Their Kin. Racine, Wisconsin: Western Publishing Co., Inc., 1987.

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What is the scientific word for spider?


What is the scientific word for spider?

A Familiar Eight-Legged Creature

There are about 40,000 different species of spider crawling the Earth. Spiders are 8-legged arthropods that live everywhere in the world except Antarctica. The diversity of this group of predators is extremely vast.

Answer and Explanation:

The scientific name for spider is Araneae. This is the order in which all spiders belong, and they are further classified into about 100 different.

See also:  What Happens When A Wolf Spider Bites You?

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What Is The Scientific Name Of A Spider?

The common house spider, Achaearanea tepidariorum (C.L. Koch), may be the most abundant of the several species of spiders that live in the company of man in the southeastern United States. Although Archer (1947) thought that Achaearanea tepidariorum was less common inside houses than Pholcus phalangioides Fuesslin (Pholcidae) in Alabama, he also noted its abundance.

Figure 1. Adult female common house spider, Achaearanea tepidariorum (C.L. Koch). Photography by Jim Kalisch, University of Nebraska — Lincoln.

Levi (1967) considered A. tepidariorum to be a cosmopolitan species. Although the species was first described from Germany, it appears to be native to South America, judging from the numerous similar relatives which occur there. It is abundant in Central America and Mexico, and occurs as far north as southern Canada (Levi 1955). It has been recorded from most of the contiguous United States (Levi and Randolph 1975). The species probably now has a worldwide distribution, having been carried around the world by man on plants. Although A. tepidariorum belongs to the same family (Theridiidae) as the notorious black widow spiders (Latrodectus spp.), it is not known to be dangerous to humans. One case of serious allergic reaction to the bite of A. tepidariorum is known from Gainesville, Florida.

Synonymy (Back to Top)

This species was known for many years under the name Theridion tepidariorum C.L. Koch 1841. Archer (1947, 1950) created a new genus Parasteatoda for a group of species that Levi (1955) later considered to belong to the genus Achaearanea. Parasteatoda was resurrected by Saaristo (2006).

Description (Back to Top)

Carapace and sternum are yellow to brown, legs are yellow to brown with darker rings; the abdomen is higher than long, is gray with black and white pigment, and has a white spot behind the highest point, surrounded anteriorly by black with dark lines running down the sides and black chevrons behind; the venter has two light patches enclosing a darker area; the male is darker and smaller than the female; females range from 5 to 8 mm in length, while males are generally about 4 mm in length (Levi 1955, 1967).

Figure 2. Adult female common house spider, Achaearanea tepidariorum (C.L. Koch). Photography by: Jeff Lotz, Division of Plant Industry.

Figure 3. Adult male common house spider, Achaearanea tepidariorum (C.L. Koch). Photography by Jeff Lotz, Division of Plant Industry.

Diagnosis (Back to Top)

The species most likely to be confused with Parasteatoda tepidariorum В is Tidarren sisyphoides (Walckenaer 1841). However, Tidarren sisyphoides has a distinctive white stripe on the posterior part of its abdomen, and it forms a sort of «tent» out of a dead leaf in the middle of its web under which it hides.В Also, the males of Tidarren sisyphoides are tiny, about 2 mm in body length.

Habits and Habitat (Back to Top)

Females and juveniles make typical theridiid webs (tangle webs). These webs are frequently made between two adjoining edges of a building, for example, between an eave and a wall. Many individuals may occur in the same area and build nearly contiguous webs covering large areas of eaves, wall space, and window frames. Webs may be built both inside and outside of buildings; when inside, they are frequently a major contributor to the build-up of «cobwebs.» Sheds, privies, barns and stables, in addition to dwellings, may have heavy populations of this species. Other characteristic habitats include undersides of highway bridges and culverts. It is largely absent in wild situations except around entrances and in outer chambers of caves, on dry mountain ledges, and on dry ledges of river bluffs (Archer 1947).

A. tepidariorum feeds on a variety of prey, including German cockroaches and scorpions (Archer 1947, personal observation.). While awaiting prey, spiders are usually positioned in the middle of their webs, but resting individuals may be nearer a lateral or upper edge of the web, where the complex color pattern on the spiders’ bodies near the substrate may help camouflage them against some enemies. Frequently males may be seen hanging in webs of adult and subadult females. A single female may produce many pear-shaped light brown eggsacs during the year, which are hung freely in the web. At least in Florida, all stages seem to occur throughout the year.

Selected References (Back to Top)

  • Archer AF. 1947. The Theridiidae or comb-footed spiders of Alabama. Alabama Museum of Natural History Paper 22: 1-67.
  • Archer AF. 1950. A study of theridiid and mimetid spiders, with descriptions of new genera and species. Alabama Museum of Natural History Paper 30: 1-40.
  • Levi HW. 1955. The spider genera Coressa and Achaearanea in America north of Mexico (Araneae: Theridiidae). American Museum Novit. 1718: 1-33.
  • Levi HW. 1967. Cosmopolitan and pantropical species of theridiid spiders (Araneae: Theridiidae). Pacific Insects 9: 175-186.
  • Levi HW, Randolph DE. 1975. A key and checklist of American spiders of the family Theridiidae north of Mexico (Araneae). Journal of Arachnology 3: 31-51.
  • Saaristo MI. 2006. Theridiid or cobweb spiders of the granitic Seychelles islands (Araneae, Theridiidae). Phelsuma 14: 49-89.
See also:  When To Seek Treatment For A Spider Bite?

Authors: G.B. Edwards, Florida Department of Agriculture and Consumer Services, Division of Plant Industry.
Originally published as DPI Entomology Circular 279.
Photographs: Jeff Lotz, Division of Plant Industry; and Jim Kalisch, University of Nebraska — Lincoln
Web Design: Don Wasik, Jane Medley
Publication Number: EENY-238
Publication Date: September 2001. Latest revision: December 2012. Reviewed: February 2019.

An Equal Opportunity Institution
Featured Creatures Editor and Coordinator: Dr. Elena Rhodes, University of Florida


KidZone Spider Facts
Spiders are Arachnids

Spiders belong to a group of animals called “arachnids”. Scorpions, mites, and ticks are also part of the arachnid family. Arachnids are creatures with two body segments, eight legs, no wings or antennae and are not able to chew. Many people think that spiders are insects but they are mistaken since insects have six legs and three main body parts. Most insects have wings.

Arachnids belong to an even larger group of animals called “arthropods” which also include insects and crustaceans (lobster, crabs, shrimp, and barnacles). This is the largest group in the animal kingdom! Approximately 80% of all animals are from this group…that would be over a million different species! There are more than 30 000 different species of spiders.

All spiders are predators and many will eat other spiders. Scientists have found spiders in amber (Did you watch Jurassic Park?) that dates back to about 2 million years. Because spider’s skeletons are quite small and fragile it is difficult to find whole fossilized spiders.

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What Is The Scientific Name Of A Spider?

Amongst the vast numbers of invertebrate animals in the Phylum Arthopoda, more than a million different kinds have bodies with three main parts—head, thorax, and abdomen. The head has eyes, antennae and mouthparts. The thorax has three pairs of legs. The entire body is protected by a tough outer covering called an exoskeleton. Animals that share these characteristics are called insects. The group to which they belong is called the Insecta.

Another, smaller, group of invertebrate animals has only two main body parts. The body consists of a combined head and thorax called the cephalothorax, and the abdomen. The cephalothorax has the eyes, mouthparts (no antennae) and four pairs of legs. Animals that share these characteristics include ticks, mites, scorpions and spiders. The group is called the Arachnida.

They have a very superficial similarity to spiders in that they have 4 pairs of legs but their legs are stilt-like and are kept bent with the body close to the ground. The daddy long-legs eats insects and other invertebrates as well as the tender gills of fungi and soft decaying matter.



verb (used with object)



Origin of spider


Words nearby spider

Words related to spider

Example sentences from the Web for spider

Did you know that Solange was just trying to kill a spider that was crawling on Jay?

Apparently, all Palestinians have an inner Spider Man and scaling walls is child’s play.

This past April, he made headlines again for calling a Pakistani girl born with additional limbs a “ spider baby.”

Is that your spider sense tingling, or is that your arthritis?

On the cover of Teen Vogue are Spider Man stars Emma Stone and Andrew Garfield.

Mary shivered a little at the words and the look in Marie’s eyes as they stared behind the spider web veil.

The box was again locked and lowered; and presently the spider returned to find that his cunning trap had been totally destroyed.

What can the Spider do with these snail-shells wherein the animal retreats so far that she cannot reach it?

Its discovery was no help to them, since it was far too small to admit the spider .

The Spider takes her place in the center, on the little cushion.

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British Dictionary definitions for spider

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