Prosentoria Brunner von Wattenwyl, 1907

Ho, Wai-Chun George, 2020, New taxa of Clitumninae from Vietnam (Phasmatodea: Phasmatidae), Zoological Systematics 45 (2), pp. 104-117 : 114

3.5 Prosentoria Brunner von Wattenwyl, 1907

Prosentoria Brunner von Wattenwyl, 1907: 207 . Type species: Prosentoria arrogans Brunner von Wattenwyl, 1907: 207 , by original designation.

Description. Large size for Clitumninae. Body unarmed, with a few small granules; cylindrical, very slender and elongate. Head oval. Vertex flat, with a pair of spine-like horns. Occiput weakly convex. Antennae short. Pronotum trapezoidal in female, rectangular in male. Mesonotum slender and elongate. Metanotum longer than median segment. Abdomen cylindrical. Anal segment broadly emarginated posteriorly in both sexes. Supra-anal plate distinct. Female subgenital plate lanceolate, elongate, scoop-shaped, apex pointed, distinctly surpassing posterior margin of supra-anal plate. Male poculum cup-shaped, tapering posteriorly, apex pointed. Cerci short. Legs very slender and long. Profemora distinctly incurved basally. Egg oval, with rounded micropylar plate.

Distribution. Brunei, Malaysia, Philippines and Vietnam.

Remarks. Currently two species are recognised including Prosentoria arrogans Brunner von Wattenwyl, 1907 (= Prosentoria lobicornis Brunner von Wattenwyl, 1907 ; = Cuniculina longelaminata Brunner von Wattenwyl, 1907 ) and P. vietnamensis sp. nov. The discovery of P. vietnamensis sp. nov. not only contributes to the knowledge of the geographical distribution pattern for the genus, but also the knowledge of zoogeographical relationship between Indochinese Subregion and Sundaic Subregion in the Oriental Region. Based on the current distribution of the genus in Vietnam, which is restricted to central part, potential distributions can be discovered in southern and northern Vietnam and its neighbouring countries such as Cambodia, Laos and Thailand.