Avicularia juruensis M2 (ex peru Purple) L1

 New world, arboreal. Blir upp till 15 cm.

The adult female Avicularia juruensishas a carapace about 19 mm long and 17 wide, and an abdomen about 24 mm long and 17 mm wide. The adult male has a smaller body, with a carapace about 15 mm long and wide, and notably shorter and narrower abdomen, about 17 mm long and 12 mm wide. The fourth leg is slightly longer than the first, both being longer than the middle two. The first leg was measured as 53 mm in a female and 56 mm in a male, the fourth leg as 58 mm in a female and 60 mm in a male. The eyes are arranged in two rows of four, the front (anterior) row being slightly curved forwards and the back (posterior) row slightly curved backwards. The abdomen carries type II urticating hairs (setae), up to about 1 mm long in males and 0.7 mm long in females.

The mature female has two long, well separated spermathecae, expanded in the middle to about 1.5 times the width of the end portions. The mature male has a globous palpal bulb with a small subtegulum and a well developed protrusion on the tegulum. The embolus forming the tip of the palpal bulb is about 5 mm long. The forward facing side (prolateral) of the first leg has an unbranched protrusion (apophysis) on the tibia.^[2]

As with other species of Avicularia, juveniles have distinctively different colour patterns to adults. Juveniles of A. juruensis lack any kind of metallic sheen, have black tarsi contrasting with the rest of the leg which is lighter, and also have a reddish upper surface to the abdomen with a central longitudinal black stripe and separated transverse black stripes. Adults lose the stripes on the abdomen and gain a metallic sheen. There are two colour forms or "morphotypes". Morphotype 1 has a golden and pink sheen, a whitish carapace and whitish leg rings and longer light brown hairs evenly distributed over shorter darker hairs. Males appear to lack whitish tips to the hairs on the upper surface of the abdomen. Morphotype 2 has an intense purple sheen and yellower leg rings. Females have long reddish brown hairs on the front and sides of the upper abdomen over shorter darker hairs. Males have white-tipped hairs evenly distributed on the upper abdomen. Morphotype 1 is more commonly found in Brazil, morphotype 2 in Ecuador and Peru, but this is not an absolute difference. Morphotype 1 is the form previously known as A. urticans.^[2]