Plectreurid spider

Plectreuridae

• Kibramoa Chamberlin, 1924
• Plectreurys Simon, 1893

To the family of Plectreuridae ( True spiders, Araneomorphae ) include 30 species in two genera, Kibramoa Chamberlin in 1924 and Plectreurys Simon 1893, which were previously found only in North America. There they are found in the arid climates of the Southwestern United States, at scattered locations in the south and east of Mexico, as well as Costa Rica and Cuba.

There are free hunting ecribellate, haplogyne spiders, which can be regarded as relatively primitive. They weave in dark columns of walls, bridges or underground and in the litter layer on the ground burrows, which are provided with a rim made ​​of silk. At night they leave their silken chambers and embark on the hunt. They have eight eyes and, like other members of the superfamily of Pholcoidea, only the two front book lungs ( Fächertracheen ).

The genus Plectreurys has strong legs, and the males have the first pair of legs strong hooks with which they probably hold the females during mating. Apart from its smaller size, Plectreurys similar to the trapdoor spiders. The genus Kibramoa until 1958 in the family Sicariidae, has thinner legs and the males do not have a mating hook on the legs.

System

Kibramoa

Plectreurys

Swell

• Gertsch, Willis J. 1979: American Spiders, 2nd edition. Van Nostrand Reinhold, New York. ISBN 0-442-22649-7
• Norman I. Platnick, 2006. The World Spider Catalog, version 6.5. American Museum of Natural History.