page_title: Tetranychus urticae
section_title: Description
hierarchical_section_title: Tetranychus urticae / Description
caption_attribution_description: Red spider mites (Tetranychus urticae)
context_page_description: Tetranychus urticae 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 sequence from any chelicerate.
context_section_description: T. urticae is extremely small, barely visible with the naked eye as reddish or greenish spots on leaves and stems; the adult females measure about 0.4 mm long. The red spider mite, which can be seen in greenhouses and tropical and temperate zones, spins a fine web on and under leaves.
caption: Colony of red spider mites
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