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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,[3] and 114 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.[4]

Anatomically, spiders differ from other arthropods in that the usual body segments are fused into two tagmata, the cephalothorax and abdomen, and joined by a small, cylindrical pedicel. Unlike insects, spiders do not have antennae. In all except the most primitive group, the Mesothelae, spiders have the most centralized nervous systems of all arthropods, as all their ganglia are fused into one mass in the cephalothorax. Unlike most arthropods, spiders have no extensor muscles in their limbs and instead extend them by hydraulic pressure.

Male spiders identify themselves by a variety of complex courtship rituals to avoid being eaten by the females. Males of most species survive a few matings, limited mainly by their short life spans. Females weave silk egg-cases, each of which may contain hundreds of eggs. Females of many species care for their young, for example by carrying them around or by sharing food with them. A minority of species are social, building communal webs that may house anywhere from a few to 50,000 individuals. Social behaviour ranges from precarious toleration, as in the widow spiders, to co-operative hunting and food-sharing. Although most spiders live for at most two years, tarantulas and other mygalomorph spiders can live up to 25 years in captivity.

Termites

Termites attack untreated wood, and usually by the time their work is visible…

Cockroaches

One of the largest of our pest species. 35-40mm in length, Reddish brown…

Silverfish

Silverfish typically live for two to eight years. Silverfish are agile runners…

Ants

Ants form colonies that range in size from a few dozen predatory individuals…

Fleas

Fleas in the home can be an irritating and annoying problem…

Rodents

Most rodents are small animals with robust bodies, short limbs, and long tails…

Wasps

European wasps are approximately 15-25 mm in length…

Flies

Flies have a mobile head, with a pair of large compound eyes and mouth parts…

Mosquitos

Mosquito and biting midge management has entered a new age of technology…

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Critter's Pest Management

PO Box 227
Capalaba QLD 4157
Phone: 1300 342 592
Email: admin@termitetreatment.com.au