For example, female A. ferox spiders produce a single clutch of 60-130 spiderlings, which she feeds by laying eggs for her offspring to eat. Black lace-weaver spider (Amaurobius ferox) male seeking a mate on an interior house wall, Wiltshire, UK, March. Demographic data of the patients and a general description of their clinical course are summarised in table 1. Amaurobius ferox side view. When they find a female's web, they drum on to the threads with their abdomen and palps to signal his approach. Amaurobius ferox (Amaurobiidae) (1 case) While working in his garden in the early afternoon in June, a 29-year-old man removed a stone plate from the ground, when a spider “jumped out and bit him on his right lower leg”. There are two species of lace weaver or lace webbed spiders; Amaurobius similis and Amaurobius fenestralis.Whilst the two are very similar we are mainly concerned with A. similis as these tend to be larger and more commonly occur indoors. Males mature in the autumn, when they wander in search of mature females (the top shot shows a male Amaurobius ferox, which tends to mature at the end of winter). Common lace weaver / Lace-webbed spider (Amaurobius similis) male in its web in an old stone wall at night, Wiltshire, UK, September. Amaurobius similis (damaged only has 7 legs) Amaurobius Similis Birmingham. Scientific name: Amaurobius ferox Size: Up to 15mm Distribution: Found throughout the UK Months seen: All year round Habitat: Mostly found under stones and logs, frequently in gardens Food: Small invertebrates Special features: Black Lace Weavers have a dark brown coloured body, and the abdomen has pale yellow-brown areas giving it a marbled appearance. • Amaurobius ferox. Black-lace weaver spiders (Amaurobius ferox) can be found under stones and logs in the woodlands and gardens of Europe and North America.They belong to the subsocial spiders, with the young baby spiders displaying a range of intriguing behaviours. Amaurobius similis. Ballarin F, Pantini P (2017) A new species of Amaurobius C.L. From Blackwall (1861). He immediately experienced dull pain of a very mild intensity, but according to the patient comparable to a wasp sting. Amaurobius ferox are generally reluctant to bite and do not have a medically important bite in the event a bite happens. Lace weaver spider. From Blackwall (1861). Mating is a … See next image for another form of the female. Figure 1 shows the leg of case one shortly after … The individual in the photo is a mature male and was probably out wandering in search of a mate. Amaurobius ferox male on table. Amaurobius similis Gloucester. Amaurobius in garage. • Amaurobius ferox. ): a, female; b, male; c, a dark variety of the female; e, palpal organs of the male; e, upper surface of radial and digital joints; f, the same in profile, from the outer side. Blagoev G, Deltshev C, Lazarov S, Naumova M (2018) The spiders (Araneae) of Bulgaria. Amaurobius ferox (Walck. Version: August 2018. Lace webbed spiders are very common and widespread throughout the UK, although less so in the far north. Koch, 1837 (Araneae: Amaurobiidae) from Apennine Mountains (Italy) with the description of the male of A. pavesii Pesarini, 1991.Zootaxa 4276: 479-502 . Amaurobius ferox female with young in North Rhine-Westphalia, Germany (picture: Alamy) The black lace weaver is often found under stones and logs in gardens across Britain all year around. Amaurobius Similis found in house. Quick Facts. fullscreen Figure 2 Amaurobius ferox, male (source: Fritz Geller-Grimm, Wikimedia Commons). Amaurobius ferox male GL45UL.