Thomisus nepenthiphilus

The body length of the females is about 10 mm. The cephalothorax and forelegs are fawn. Hind legs and abdomen yellowish white. Males are reddish about 3.5 mm long ^[1] .

Spiders are found only in the phytothelates of Nepenthes gracilis plants and feed on mosquito larvae living in the jug and flies caught on the edges of the jug ^{[2] [3] [4]} . Without spiders, fewer insects enter the jugs, but more nutrients come from each insect. The jugs in which the spiders settle have more insects, but less nutrients from each insect. The relationship between the spider and nepentes is beneficial in cases where the amount of food resources is limited and not profitable with a high number of insects ^[4] . The female arranges a spider web nest in the upper part of the jug. A single pitcher of Nepentes is never populated by more than one adult female. The cocoon with eggs is attached by a web to the inner wall. Development in a cocoon lasts 10 days. In cocoons of Thomisus nepenthiphilus, ichneumonids are parasitic, and chalcides are parasitic in the eggs of riders ^[5] . In case of danger from predators, spiders dive into a jug ^[3] .

Found in Sumatra and Singapore ^{[1] [4]} .