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Arachnida
SPIDERS; TICKS; MITES; CHIGGERS; SCORPIONS; WHIPSCORPIONS; PSEUDOSCORPIONS; DADDY LONGLEGS; HARVESTMEN; ARACHNIDAE
Life   Arachnida

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Dermacentor variabilis, female, top
© Copyright Gary Alpert, 2005-2008 · 1
Dermacentor variabilis, female, top
Harvestman, probably Phalangium opilio
© Copyright GNU Free Documentation License · 0
Harvestman, probably Phalangium opilio

untitled
© John Pickering, 2004-2017 · 1
untitled
Nephila clavipes, Golden Silk Orbweaver, female
© John Pickering, 2004-2017 · 1
Nephila clavipes, Golden Silk Orbweaver, female

Pseudoscorpions on_fly_legs.EL_DP169.640.jpg
© Copyright Dan L. Perlman, 2005-2007
Pseudoscorpions on fly legs
EL_DP169
Trombidium holosericeum, Velvet mite
© John Pickering, 2004-2017 · 20
Trombidium holosericeum, Velvet mite
Kinds
Overview
Hundreds of thousands of species of arachnids have been identified. Mites contribute several hundreds of thousands of species by themselves. Arachnids make their home most land habitats and some water habitats. Arachnids require liquid nourishment and obtain this by injecting digestive juices into their prey and suck out the useful portion. All arachnids, except mites, are predators on insects and other invertebrates. Mites, however, feed on several other sources of nourishment (i.e. fungus, plants, dead animals, etc.).

Arachnids have eight legs and bodies that are divided into two sections (the cephalothorax and the abdomen). Arachnids do not have wings; however, some spiders float on the wind using long strands of silk. Many arachnids use silk, usually to catch prey or for reproduction processes.


Kinds
Spiders
Araneae -- Spiders
Ticks
Ixodid -- Ticks
Scorpions
Scorpions
Daddy long-legs
Opiliones -- Daddy long-legs
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Phylogeny


Links to other sites

References

Acknowledgements
Discover Life thanks John Pickering and Justin Long, University of Georgia, Athens for their assistance with the development of this page.

Supported by

Hosts · map
FamilyScientific name @ source (records)
Apiaceae  Daucus carota @ PN- (1)
Asteraceae  Achillea millefolium @ PN- (1)

Cichorium intybus @ PN- (2)

Cirsium spp @ PN- (1)
Fabaceae  Medicago lupulina @ PN- (1)

Trifolium repens @ PN- (2)

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Following modified from University of Michigan Museum of Zoology
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Updated: 2017-05-22 21:24:12 gmt
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