Genus Indomarengo Benjamin, 2004

Type species.

Indomarengo sarawakensis Benjamin, 2004

Comments.

This genus only contains four species, all endemic: one from Borneo, two from Indonesia and one from India. Two are known only from a single sex: I. chandra Benjamin, 2004 from males and I. thomsoni (Wanless 1978) from females (WSC 2020). The genus can be distinguished from all other Ballini genera, except Sadies Wanless, 1984, Leikung Benjamin, 2004, and Afromarengo Benjamin, 2004, by the presence of a carapace protuberance. It can be distinguished from Afromarengo and Leikung by the short embolus, which has less than two spirals, and from Sadies by the lack of leaf-like carapace scales (Benjamin 2004).