A) Desert tarantula
http://www.arizonensis.org/sonoran/fieldguide/arthropoda/therophosid.html
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Tarantula
Spider |
Aphonopelma |
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This tarantula's burrow was
photographed using a Nikon CoolPix 990 on 25 Aug. 2002 n. Carefree,
Arizona at an elev. of 1020 m in chaparal habitat. |
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Notice that there is fresh spider silk within the
burrow opening. The collection of loose thatch around the burrow
entrance to which silk strands are attached likely helps in sending
vibration signals from potential prey and predators down to the
below-ground spider. The spider will emerge to capture a cricket, etc.
that passes near the burrow entrance.
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Tarantula Spider |
Therophosidae |
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This tarantula male was photographed
in Haunted Canyon in Gila County, Arizona. Haunted Canyon is at the
eastern end of the Superstition Mountains at an elevation of 1300 m..
Oct. 26, 2002 with a CoolPix 990. |
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Upon maturity, males leave the safety of their
burrows in search of females. Male spiders feed little and soon waste
away and die -- if they don't fall victim to an insectivorous predator
such as a skunk or an owl first. The spider holds it's abdomen up
because it is covered with irritating hairs ... a pretty good defense
against sensitive tongues and noses. There are dozens of tarantula
species, the mature male above is 20 mm long. Held in front of the
spider's head are two pedipalps with enlarged tips -- this
characteristic identifies this as a male spider. The pedipalps are used
for copulation. |