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Spider mite. Spider mites are members of the Tetranychidae family, which includes about 1,200 species. [1] They are part of the subclass Acari (mites). Spider mites generally live on the undersides of leaves of plants, where they may spin protective silk webs, and can cause damage by puncturing the plant cells to feed. [2]
Spider mites are a pain, but can be killed with a few measures, including proper watering, pruning, and use of natural oils to keep infestations under control.
Tetranychus urticae. C. L. Koch, 1836. Tetranychus urticae (common names include red spider mite and two-spotted spider mite) is a species of plant-feeding mite generally considered to be a pest. It is the most widely known member of the family Tetranychidae or spider mites. Its genome was fully sequenced in 2011, and was the first genome ...
External anatomy. The underside and head of a female spider. Spiders, unlike insects, have only two main body parts (tagmata) instead of three: a fused head and thorax (called a cephalothorax or prosoma) and an abdomen (also called an opisthosoma). The exception to this rule are the assassin spiders in the family Archaeidae, whose cephalothorax ...
Some species have a single generation per year, while others have several. The eggs are laid singly or in clutches, and some mites may cover the eggs with dust or other matter. Unlike some other spider mites, bryobia mites do not spin webs. [2] The great majority of Bryobia mites are asexual (although certain species do reproduce sexually).
Mygalomorphae. Araneomorphae. See Spider taxonomy. Diversity [1] 134 families, c. 52,000 species. Spiders (order Araneae) are air-breathing arthropods that have eight limbs, chelicerae with fangs generally able to inject venom, [2] and spinnerets that extrude silk. [3] They are the largest order of arachnids and rank seventh in total species ...
A spider web, spiderweb, spider's web, or cobweb (from the archaic word coppe, meaning "spider") [ 1 ] is a structure created by a spider out of proteinaceous spider silk extruded from its spinnerets, generally meant to catch its prey. Spider webs have existed for at least 100 million years, as witnessed in a rare find of Early Cretaceous amber ...
Pedipalp. Green-shaded pedipalps in an illustrated dorsal view of a whip scorpion. Pedipalps (commonly shortened to palps or palpi) are the secondary pair of forward appendages among chelicerates – a group of arthropods including spiders, scorpions, horseshoe crabs, and sea spiders. The pedipalps are lateral to the chelicerae ("jaws") and ...