Platythomisus Doleschall, 1859

Lin, Yejie, Koh, Joseph K. H., Shao, Lili & Li, Shuqiang, 2019, Description on two species of genus Platythomisus (Araneae, Thomisidae) from China and Singapore, ZooKeys 852, pp. 73-84 : 73

Genus Platythomisus Doleschall, 1859

Type species.

Thomisus 8-maculatus C.L. Koch, 1845, from Ostindien.

Diagnosis.

Sexual dimorphism is distinct in Platythomisus . Females can be easily distinguished from most other thomisids by their extraordinary large size [up to 20 mm in length in some specimens of the type species P. octomaculatus (C. L. Koch, 1845)] with strikingly contrasting color patterns on the carapace and opisthosoma. Typically, the epigyne has sclerotized margins and a conspicuous epigynal atrium; spermathecae longer than wide, well-sclerotized, and not divided into compartments. The male is much smaller than female (1:3 or more). Palp with VTA, ITA and RTA; tegulum flat, disk-shaped; tegular ridge present; embolus slender.

Distribution.

Oriental and African zoogeographic regions.