Tmarus piger

Tmarus piger can reach a body length of about 3.5–4 mm (0.14–0.16 in) in males, of about 5.9–6 mm (0.23–0.24 in) in females. The carapace is brownish, with a brown-grey band on each sides and small spines. Sometimes it is entirely yellow-brown or black-brown. The abdomen (opisthosoma) is highly variable in colour and markings. Usually it varies from silvery-grey to dark brown with dark or light transverse lines. Sometimes may appears orange-red with a whitish back. It is rather high, V-like compressed, caudally extended, with a small tubercle on the posterior part. The legs are lightly annulated with dark brown and show short spines arising from black spots. The palpal bulbs of the males, located at the end of the pedipalps, are round to longish oval.

This species is present in the Palearctic realm, in Europe (Austria, Belarus, Belgium, Bulgaria, Croatia, Czech Republic, France, Germany, Greece, Hungary, Italy, Lithuania, Republic of Moldova, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Switzerland, The Netherlands, Ukraine and Yugoslavia), Turkey, Caucasus, Kazakhstan, European Russia up to Far East, China, Korea and Japan. These spiders occur in many different habitats, in warm areas, in bogs and swamps, in grasslands, open forests, bushes and hedges. Usually they can be found on leaves, branches, twigs and tree barks, where they are well camouflaged.