Ballus chalybeius

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Ballus chalybeius
Subadult male
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Arachnida
Order: Araneae
Family: Salticidae
Genus: Ballus
Species: B. chalybeius
Binomial name
Ballus chalybeius
(Walckenaer, 1802)

Aranea depressa
Aranea chalybeia
Attus chalybeius
Salticus annulipes
Attus annulipes
Salticus brevipes
Salticus heterophthalmus
Euophrys suralis
Euophrys brevipes
Marpissa brevipes
Attus heterophthalmus
Salticus obscurus
Ballus heterophthalmus
Attus brevipes
Attus quinquefoveolatus
Attus biimpressus
Balla heterophthalma
Dendryphantes annulipes
Dendryphantes brevipes
Attus seguipes
Ballus depressus
Ballus obscurus

Ballus chalybeius is a jumping spider. It is the type species of the genus Ballus.


subadult male in retreat

This flattened spider can reach a length of 3–4 millimetres (0.12–0.16 in). The prosoma is dark brown in females, with irregular lighter markings. The lightly yellow legs have dark rings in both sexes. In males, which are generally darker, the first legs are dark and thickened. The species is similar to Ballus rufipes, which is smaller and much darker.[1]


During summer, the female builds a flat silken retreat on the underside of a leaf and guards its egg sac inside.[1]


It can be found mostly on the fringes of deciduous forests, on broad-leaved bushes and trees, particularly oaks, and in the grass. In Central Europe, they are widely distributed and in most areas quite common.[1]


B. chalybeius occurs in Europe, North Africa to Central Asia.[2]


The species name is derived from Ancient Greek chalyb- "steel".


  1. ^ a b c Bellmann, H. (1997). Kosmos-Atlas Spinnentiere Europas. Kosmos. pX
  2. ^ Platnick, N. I. (2006). The world spider catalog, version 7.0. American Museum of Natural History.

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