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The Australian garden orb weaver spider is a widespread species of spider with many variants in size, shape, and color across the coastal regions of Australia. They have very large abdomens when well-fed and exhibit a tremendous color range from off-white through tan, brown to almost black. They have a roughly leaf-shaped pattern on the top of their abdomen with a complex outline darker than the surrounding area. There may also be several whitish spots or one or more stripes. The spiders' cephalothoraxes (heads) and proximal (closer to the body) leg segments are usually darker, mostly reddish or brown. They can change their color with each molt to better match the background upon which they rest during the day.
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The Brazilian whiteknee tarantula is a species of tarantula from Brazil that is commonly kept as a pet. It is native to the Amazon basin of northern Brazil. These tarantulas live in a tropical, wet climate characterized by abundant rainfall with little to no dry season. The body and legs of the Brazilian whiteknee tarantula are a deep black, though occasionally, the legs may be slightly lighter in coloration. This contrasts with the bright white bands on its legs, which are generally considered the main reason for its subjective beauty. The males are smaller and less intensely colored. This is a larger tarantula species than the norm, with the length of the body reaching up to 9 centimeters (3.5 in). These tarantulas are fast-growing, usually taking around 3–4 years to reach a mature leg span of 8.5 inches for females.
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Wolf spiders are members of the family Lycosidae. They are robust and agile hunters with excellent eyesight. They live primarily in solitude, hunt alone, and do not spin webs. Some are opportunistic hunters, pouncing upon prey as they find it or chasing it over short distances; others wait for passing prey in or near the mouth of a burrow.
Wolf spiders resemble nursery web spiders. Still, wolf spiders attach their egg sacs to their spinnerets, while the Pisauridae carry their egg sacs with their chelicerae and pedipalps. Two of the wolf spider's eight eyes are large and prominent; this distinguishes them from nursery web spiders, whose eyes are all roughly equal in size. This can also help determine them from similar-looking grass spiders.
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The family Dipluridae, known as curtain-web spiders, is a group of spiders with two pairs of booklungs and chelicerae (fangs) that move up and down in a stabbing motion.
Dipluridae lack a rastellum (stout conical spines) on their chelicerae. Their carapace is characterized by the head region not being higher than the thoracic region. Their posterior median spinnerets (silk-extruding organs) are much shorter than their posterior lateral spinnerets, which have three segments, and are elongated (almost as long as their opisthosoma). Most species are medium to small-sized spiders; some may measure about 15 mm. The cave species Masteria caeca is eyeless.
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European black widow is a species in the genus Latrodectus of widow spiders. It is commonly found throughout the Mediterranean region, from southern Iberia to southwest and central Asia, hence the name. European black widow is black in color, similar to most other widow species, and is identified by the thirteen spots found on its dorsal abdomen. These spots are usually red but may also be yellow or orange. It is otherwise similar to other species in the genus Latrodectus. The European widow primarily lives in steppes and other grasslands and can be a significant problem in areas where grain is harvested by hand. The female of the species has a body length of about 7–15 mm (0.28–0.59 in), while the male is smaller and reaches 4–7 mm (0.16–0.28 in) at best. Only the female spider's bite is dangerous (either for humans or cattle) as the male cannot penetrate the relatively thick epidermis.
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The European garden spider is an orb-weaver spider found in Europe, where it is native, and North America, where it is introduced. Individual spiders' colorings range from extremely light yellow to dark grey. Still, all еuropean garden spiders have mottled white markings across the dorsal abdomen, with four or more segments forming a cross. The markings are formed in cells filled with guanine, a protein metabolism's byproduct.
Adult females range in length from 6.5 to 20 mm (0.26 to 0.79 in), while males range from 5.5 to 13 mm (0.22 to 0.51 in). Occasionally, the female will eat the male directly after mating.
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The Goliath birdeater belongs to the tarantula family Theraphosidae. Found in northern South America, it is the giant spider in the world by mass (175 g (6.2 oz)) and body length (up to 13 cm (5.1 in)), and second to the giant huntsman spider by leg span. It is also called the Goliath bird-eating spider. Unlike other species of spider/tarantula, females do not eat the males during mating. Females mature in 3–6 years and have an average lifespan of 15 to 25 years. Males die soon after maturity and have a lifespan of three to six years. Colors range from dark to light brown, with faint markings on the legs. Bird-eaters have hair on their bodies, abdomens, and legs. The female lays 100 to 200 eggs, which hatches into spiderling within 6–8 week.
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Missulena is a genus of mygalomorph spiders in the family Actinopodidae. It is found in Chile, but the rest are indigenous to Australia. Тhese spiders are medium to large, ranging from 1 to 3 centimeters (0.39 to 1.18 in). They have a glossy carapace and high, broad heads with eyes spread out across the front of the head and short spinnerets in the rear of the abdomen. They mainly prey on insects, though they may consume other small animals as opportunity presents. Their primary predators include wasps, centipedes, and scorpions.
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A southern black widow or simply black widow, and the shoe-button spider is a venomous species of spider in the genus Latrodectus. The females are well known for their distinctive black and red coloring and for the fact that they will occasionally eat their mates after reproduction. The species is native to North America. The venom can cause pain and other symptoms but is rarely fatal to healthy humans.
The body length (excluding legs) of the mature female is 8–13 mm (0.31–0.51 in) and 3–6 mm (0.12–0.24 in) for males. Legs are long in proportion to the body. Females are shiny and black, with a red marking in the shape of an hourglass on the ventral (under) side of her very rounded abdomen. There is much variation in female size, particularly in egg-carrying (gravid) females. The abdomen of a gravid female can be more than 1.25 cm (0.5 in) in diameter.
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The wasp spider is a species of orb-web spider distributed throughout central Europe, northern Europe, North Africa, parts of Asia, and the Azores archipelago. The wasp spider displays a rather significant distinction between males and females, with males averaging a length of approximately 4.5 mm and females averaging 15 mm.
The spider builds a spiral orb web at dawn or dusk, commonly in the long grass a little above ground level, taking approximately an hour. The prominent zigzag shape, the stabilimentum, or web decoration, featured at the center of the orb is of uncertain function, though it may attract insects.
When a prey item is first caught in the web, The wasp spider will quickly immobilize its prey by wrapping it in silk. The prey is then bitten and injected with a paralyzing venom and a protein-dissolving enzyme.
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The yellow sac spiders are a genus of araneomorph spiders in the family Cheiracanthiidae. They are usually pale in color and have an abdomen ranging from yellow to beige. Both sexes range from 5 to 10 millimeters (0.20 to 0.39 in). They are unique among common house spiders because their tarsi do not point outward or inward, making them easier to identify. The name is a reference to the backwardly directed process on the cymbidium of the male palp. Though they are beneficial predators in agricultural fields, they are also known to be mildly venomous to humans.
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