Rhene amabilis

Like many in the genus, Rhene amabilis resembles a beetle.^[11] The spider's body is divided into two main parts: a cephalothorax and an abdomen.^[12] The male's cephalothorax has a length between 1.6 and 1.8 mm (0.06 and 0.07 in) and width of between 1.8 and 1.9 mm (0.07 in).^[3] The female has a cephalothorax that is between 1.6 and 1.7 mm (0.07 in) in length and between 1.7 and 1.8 mm in width. The spider's carapace, the hard upper part of the cephalothorax, is round and very flat, with a pitted brown eye field taking up the majority of the top. There are two blackish spots on the eye field and black rings around the eyes themselves. The whole top surface is covered in dense white hairs, particularly above the first row of eyes. The underside of the cephalothorax, or sternum, is dark brown.^[12]

The part of the spider's face known as its clypeus is dark and very low. Its chelicerae have a single tooth. The spider's remaining mouthparts, including its labium and maxillae are dark brown. Its abdomen is a flattened briown oval. The female's abdomen is between 1.9 and 2.2 mm (0.09 in) long and between 1.7 and 1.8 mm wide.^[12] The male is smaller, between 1.7 and 1.8 mm long and between 1.6 and 1.7 mm wide.^[3] Its top has a pattern of a darker wide band that extends from the front halfway to the back and a blackish rear edge. The top is also covered in whitish hairs. The bottom is plain. Its spinnerets are yellowish-grey. The spider's legs are mainly light brown with dark brown patches and have whitish leg hairs. Its front legs are different; they are longer and thicker than the others and black with white hairs.^[12]

Rhene amabilis has distinctive copulatory organs. Its pedipalps are brown and the male's palpal tibia has a hooked projection, called a tibial apophysis. Its cymbium is a smooth and similar in size to its irregularly-shaped palpal bulb. There is a meandering spermophore inside its tegulum, the main body of the palpal bulb, and, projecting from the top, a wide embolus that has a forked end.^[13] The shape of the embolus helps distinguish the pider from other members of the Rhene genus, particularly the way that it wider at its base and has two tips.^[3]

The female spider has a rounded epigyne with two copulatory openings near the front that are widely spaces and that show strong evidence of sclerotization. The inlet part of the insemination ducts form large chambers with the accessory glands. The ducts then lead to semicircular spermathecae, or receptacles.^[13] Internally, it resembles the related Rhene konradi but differs in having smaller accessory glands, but they are still larger than many others in the genus and their position near the entrance to the insemination ducts is characteristic of the species.^[3]

Although Dendryphantine spiders are predominantly found in the Americas, Rhene spiders live in Africa and Eurasia.^[5] Rhene amabilis is endemic to Uganda.^[1] It lives amongst the trees of the Budongo Forest.^[3]