Conductor distally short and blunt, distal furrow shallow. Vulva anteriorly broad, entrance ducts strongly lobed. Body jumping-spider-like, males contrastingly coloured. Prosoma black, female: black, head region mostly provided with yellow hairs. Male: black. Legs short and robust. Female: black, provided with bluish light grey hairs. Male: black or reddish, annulated with white, III and IV with red hairs. Opisthosoma female: appears velvety black due to shiny hairs. Male: dorsally shiny red with 2 pairs of large and one pair of small, black spots (often margined white), laterally and ventrally black.Body length male: 8-11 mm
in colonies in burrows of up to 10 cm depth (1 cm diameter), covered by small shield- or funnel-like web. Female carries lens-shaped cocoon (8-10 mm diameter, approximately 65-100 eggs) to sunny places during the day. Hatching juveniles stay in the female's burrow and feed on her after her death.
This species can bite humans. A bite into a finger caused pain, spreading to the axilla, with fever-like symptoms and an increased heart rate. After one hour the patient had partially recovered and after 2 hours the symptoms had alleviated, but a strong headache lasted for one day and the finger remained sensitive for several days.
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