Black-tailed Red Sheetweaver

Florinda coccinea
Florinda coccinea
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The blacktailed red sheetweaver (Florinda coccinea), also known as red grass spider, is a species of dwarf spider. It is the only species in the monotypic genus Florinda. It was first described by Octavius Pickard-Cambridge in 1896, and has only been found in Mexico, the West Indies, and the United States. It is common in the southeastern United States, inhabiting grasslands, lawns, and agricultural fields.

Black-tailed Red Sheetweaver

Florinda coccinea

Is Black-tailed Red Sheetweaver harmful?

There is no data about harmful of this species. Don't forget to be careful.

Sientific classification

kingdom: Animalia
phylum: Arthropoda
class: Arachnida
order: Araneae
family: Linyphiidae
genus: Florinda


F. coccinea are bright red in color, with a black caudal tubercle. Adults typically grow to 3 to 4 mm long, with females growing slightly larger than males. They have two rows of eyes; two on the top row and six procurved on the bottom. Webs spun by F. coccinea consist of a horizontal sheet of non-sticky silk, and a tangle of stopping threads above. The stopping threads intercept flying prey and cause them to fall into the sheet below, where they are attacked by the spider.