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its called Drawins bark Spider- How special this spider? Is it venomous?
Darwin's bark spider (Caerostris darwini) is an orb-weaver spider – a member of the family Araneidae. Like other spiders of the genus, they display extreme sexual dimorphism, with large females and small males. Females vary in total body length from about 18 to 22 mm (0.7 to 0.9 in), males being around one third or less of this length, at about 6 mm (0.2 in).[2] In a captive bred population, females were 14 (1.3–195) times heavier and 2.3 (1–4) times larger than males.[6]
Females are largely black in colour, with white hairs on the cephalothorax (prosoma), abdomen and appendages. The upper surface of the cephalothorax has two sets of "humps", one at the sides and one towards the back. The first leg is about 35 mm (1.4 in) long. Unlike other Caerostris species from the region, C. darwini has clearly separated epigynal chambers with a pair of hooks on the posterior (rather than anterior or medial) part of the epigynal plate. The spermathecae and the ducts leading to them are strongly sclerotized (hardened). Males are redder and lighter brown in colour, again with white hairs on the cephalothorax, abdomen and parts of the appendages further from the body. The femora of the legs are red and hairless. The first leg is about 15 mm (0.6 in) long. The palpal bulb has a large conductor with a straight tip, and a longer embolus with a spoon-shaped end than other species from the region.
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