Wall spider is the common name for members of the genus ''Oecobius''. The members of these several species are all very small

spider Spiders ( order Araneae) are air-breathing arthropods that have eight legs, chelicerae with fangs generally able to inject venom, and spinnerets that extrude silk. They are the largest order of arachnids and rank seventh in total species ...

s that make small flat webs over crevices in walls and in similar spaces. They possess an organ called a

cribellum Cribellum literally means "little sieve", and in biology the term generally applies to anatomical structures in the form of tiny perforated plates. In certain groups of diatoms it refers to microscopically punctured regions of the frustule, or ...

, which is a kind of comb-like device used to separate fibers of

silk Silk is a natural protein fiber, some forms of which can be woven into textiles. The protein fiber of silk is composed mainly of fibroin and is produced by certain insect larvae to form cocoons. The best-known silk is obtained from the coc ...

drawn from its spinnerets into many extremely fine fibers. Those fibers are so small in diameter that prey insects easily become entangled in them. The spiders then bite them before they can get away. One cosmopolitan species is ''O. navus'' (sometimes also called ''O. annulipes''). One species of interest is ''Oecobius civitas''. When a spider enters the home of another spider, rather than defend itself, the resident leaves to find another one.

Species

* '' Oecobius achimota'' Shear & Benoit, 1974 (Ghana) * '' Oecobius aculeatus'' Wunderlich, 1987 (Canary Is.) * '' Oecobius affinis'' O. P.-Cambridge, 1872 (Syria, Jordan) * '' Oecobius agaetensis'' Wunderlich, 1992 (Canary Is.) * '' Oecobius albipunctatus'' O. P.-Cambridge, 1872 (Syria) * '' Oecobius alhoutyae'' Wunderlich, 1995 (Kuwait) * '' Oecobius amboseli'' Shear & Benoit, 1974 (Egypt, Kenya, Uganda) * '' Oecobius annulipes'' Lucas, 1846 (Algeria) * '' Oecobius ashmolei'' Wunderlich, 1992 (Canary Is.) * '' Oecobius beatus'' Gertsch & Davis, 1937 (Mexico) * '' Oecobius bracae'' Shear, 1970 (Mexico) * '' Oecobius caesaris'' Wunderlich, 1987 (Canary Is., Azores) * '' Oecobius cambridgei'' Wunderlich, 1995 (Lebanon) * ''

Oecobius camposi Wall spider is the common name for members of the genus ''Oecobius''. The members of these several species are all very small spiders that make small flat webs over crevices in walls and in similar spaces. They possess an organ called a cribel ...

'' Wunderlich, 1992 (Canary Is.) * '' Oecobius cellariorum'' (Dugès, 1836) (Cosmopolitan) * '' Oecobius chiasma'' Barman, 1978 (India) * '' Oecobius civitas'' Shear, 1970 (Mexico) * '' Oecobius concinnus'' Simon, 1893 (USA to Brazil, Galapagos Is. (elsewhere, introduced)) * '' Oecobius culiacanensis'' Shear, 1970 (Mexico) * '' Oecobius cumbrecita'' Wunderlich, 1987 (Canary Is.) * '' Oecobius depressus'' Wunderlich, 1987 (Canary Is.) * ''

Oecobius dolosus Wall spider is the common name for members of the genus ''Oecobius''. The members of these several species are all very small spiders that make small flat webs over crevices in walls and in similar spaces. They possess an organ called a cribel ...

'' Wunderlich, 1987 (Canary Is.) * ''

Oecobius doryphorus Wall spider is the common name for members of the genus ''Oecobius''. The members of these several species are all very small spiders that make small flat webs over crevices in walls and in similar spaces. They possess an organ called a cribel ...

'' Schmidt, 1977 (Canary Is.) * ''

Oecobius erjosensis Wall spider is the common name for members of the genus ''Oecobius''. The members of these several species are all very small spiders that make small flat webs over crevices in walls and in similar spaces. They possess an organ called a cribel ...

'' Wunderlich, 1992 (Canary Is.) * ''

Oecobius formosensis Wall spider is the common name for members of the genus ''Oecobius''. The members of these several species are all very small spiders that make small flat webs over crevices in walls and in similar spaces. They possess an organ called a cribel ...

'' (Kishida, 1943) (Taiwan) * ''

Oecobius fortaleza Wall spider is the common name for members of the genus ''Oecobius''. The members of these several species are all very small spiders that make small flat webs over crevices in walls and in similar spaces. They possess an organ called a cribel ...

'' Wunderlich, 1992 (Canary Is.) * ''

Oecobius fuerterotensis Wall spider is the common name for members of the genus ''Oecobius''. The members of these several species are all very small spiders that make small flat webs over crevices in walls and in similar spaces. They possess an organ called a cribel ...

'' Wunderlich, 1992 (Canary Is.) * ''

Oecobius furcula Wall spider is the common name for members of the genus ''Oecobius''. The members of these several species are all very small spiders that make small flat webs over crevices in walls and in similar spaces. They possess an organ called a cribel ...

'' Wunderlich, 1992 (Canary Is.) * '' Oecobius gomerensis'' Wunderlich, 1979 (Canary Is.) * '' Oecobius hayensis'' Wunderlich, 1992 (Canary Is.) * '' Oecobius hidalgoensis'' Wunderlich, 1992 (Canary Is.) * '' Oecobius hierroensis'' Wunderlich, 1987 (Canary Is.) * '' Oecobius hoffmannae'' Jiménez & Llinas, 2005 (Mexico) * '' Oecobius idolator'' Shear & Benoit, 1974 (Burkina Faso) * '' Oecobius iguestensis'' Wunderlich, 1992 (Canary Is.) * '' Oecobius incertus'' Wunderlich, 1995 (North Africa) * '' Oecobius infierno'' Wunderlich, 1987 (Canary Is.) * '' Oecobius interpellator'' Shear, 1970 (USA) * '' Oecobius isolatoides'' Shear, 1970 (USA, Mexico) * '' Oecobius isolatus'' Chamberlin, 1924 (USA, Mexico) * '' Oecobius juangarcia'' Shear, 1970 (Mexico) * '' Oecobius lampeli'' Wunderlich, 1987 (Canary Is.) * '' Oecobius latiscapus'' Wunderlich, 1992 (Canary Is.) * '' Oecobius linguiformis'' Wunderlich, 1995 (Canary Is.) * '' Oecobius longiscapus'' Wunderlich, 1992 (Canary Is.) * '' Oecobius machadoi'' Wunderlich, 1995 (Portugal, Spain) * '' Oecobius maculatus'' Simon, 1870 (Mediterranean to Azerbaijan) * '' Oecobius marathaus'' Tikader, 1962 (Pantropical) * '' Oecobius marcosensis'' Wunderlich, 1992 (Canary Is.) * '' Oecobius maritimus'' Wunderlich, 1987 (Canary Is.) * '' Oecobius minor'' Kulczyn'ski, 1909 (Azores, Madeira) * '' Oecobius nadiae'' (Spassky, 1936) (Central Asia, China) * ''

Oecobius navus ''Oecobius navus'' is a small cosmopolitan distribution, cosmopolitan cribellate spider species found across the world. Description Both adult males and females are approximately the same size, with a body length of 2–2.5 mm (0.08 – 0.10 i ...

'' Blackwall, 1859 (Cosmopolitan) ** '' Oecobius navus hachijoensis'' Uyemura, 1965 (Japan) * '' Oecobius palmensis'' Wunderlich, 1987 (Canary Is.) * '' Oecobius paolomaculatus'' Wunderlich, 1995 (Algeria) * '' Oecobius pasteuri'' Berland & Millot, 1940 (West Africa) * '' Oecobius persimilis'' Wunderlich, 1987 (Canary Is.) * '' Oecobius petronius'' Simon, 1890 (Yemen) * '' Oecobius piaxtla'' Shear, 1970 (Mexico) * '' Oecobius pinoensis'' Wunderlich, 1992 (Canary Is.) * '' Oecobius przewalskyi'' Hu & Li, 1987 (Tibet) * '' Oecobius pseudodepressus'' Wunderlich, 1992 (Canary Is.) * '' Oecobius putus'' O. P.-Cambridge, 1876 (Egypt, Sudan to Azerbaijan (USA, introduced)) * '' Oecobius rhodiensis'' Kritscher, 1966 (Greece) * '' Oecobius rioensis'' Wunderlich, 1992 (Canary Is.) * '' Oecobius rivula'' Shear, 1970 (Mexico) * '' Oecobius rugosus'' Wunderlich, 1987 (Canary Is.) * '' Oecobius sapporensis'' Saito, 1934 (Japan) * '' Oecobius selvagensis'' Wunderlich, 1995 (Salvages) * '' Oecobius sheari'' Benoit, 1975 (Chad) * '' Oecobius similis'' Kulczyn'ski, 1909 (Madeira, Canary Is., Azores, St. Helena) * '' Oecobius sombrero'' Wunderlich, 1987 (Canary Is.) * ''

Oecobius tadzhikus Wall spider is the common name for members of the genus ''Oecobius''. The members of these several species are all very small spiders that make small flat webs over crevices in walls and in similar spaces. They possess an organ called a cribel ...

'' Andreeva & Tyschchenko, 1969 (Central Asia) * '' Oecobius tasarticoensis'' Wunderlich, 1992 (Canary Is.) * '' Oecobius teliger'' O. P.-Cambridge, 1872 (Lebanon) * '' Oecobius templi'' O. P.-Cambridge, 1876 (Egypt, Sudan) * '' Oecobius tibesti'' Shear & Benoit, 1974 (Chad) * '' Oecobius trimaculatus'' O. P.-Cambridge, 1872 (Jordan) * '' Oecobius unicoloripes'' Wunderlich, 1992 (Canary Is.)

Species

References

Further reading