Editing Atypical tarantula (section)

==Biology==
''Atypus'' builds a [[spider silk|silken]] tube parallel to the surface of the ground. While up to 8&nbsp;cm of the tube lie on the ground, about 20&nbsp;cm are buried vertically. The spider rests at the bottom of the tube. When prey walks on the exposed part, the spider, alerted by the vibrations, stabs the prey through the silk, cuts the web and drags the prey inside to be eaten. ''Calommata'' species, instead of building a purseweb, live in burrows.<ref name=murphy2000>{{cite journal| last1=Murphy| first1=F.| last2=Murphy| first2=J.| year=2000| title=An introduction to the spiders of South East Asia with notes on all the genera| journal=Malaysian Nature Society Kuala Lumpur}}</ref>
''Sphodros'' spp. usually prop their tubes against a tree trunk.

Atypical tarantulas have huge [[chelicerae]] for their size and relatively long [[spinneret (spider)|spinnerets]] (although not as long as those found in [[Dipluridae|diplurids]]). The males are sometimes brightly colored and wander around looking for females in their tubes. The females are reddish-brown or dark-colored.

During the breeding season for ''A. affinis'', the male leaves his own burrow and goes in search of females. When he finds the burrow of a female, he tentatively taps on the wall of the purseweb, and if the female is receptive, he ventures into the confines of the burrow. The two spiders mate and cohabit until the male dies, when the female eats him. The female makes an egg sac and hangs it in her burrow. The next summer, the eggs hatch, and the spring after that, the spiderlings leave their mother's burrow and wander off to find a suitable place to build a lair of their own.<ref name="Piper 2007" />

Southeast Asian ''Atypus'' species have a body length of 7 to 21&nbsp;mm in females, and about 12&nbsp;mm in males. ''Calommata'' spp. of this region grow from 23 to 30&nbsp;mm in females, and only about 7&nbsp;mm in males.<ref name=murphy2000/>
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