Bensonella pangmapaensis

Bensonella pangmapaensis (Panha & J. B. Burch, 2002) Figs 39 V, 81, 100 Paraboysidia pangmapaensis Panha & Burch, 2002 c: 87, fig. 5. Paraboysidia pangmapaensis — Panha and Burch 2008: 114, fig. 97; Dumrongrojwattana and Wongkamhaeng 2024: 324. Material examined. Thailand • 6 shells; Mae Hong Son Province, Mae Hong Son, Road 1095; 19°25'N, 97°58'E; 390 m a. s. l.; 22 Mar. 1988; K. Auffenberg leg.; locality code KA-0596; UF 345697 • 5 shells; Mae Hong Son Province, Mae Hong Son, Road 1095; 19°25'N, 97°58'E; 390 m a. s. l.; 22 Mar. 1988; K. Auffenberg leg.; locality code KA-0595 B; UF 345721 • 7 shells; Mae Hong Son Province, 21 km N Mae Hong Son, Fish Cave; 19°26'N, 97°58'E; 380 m a. s. l.; 22 Mar. 1988; K. Auffenberg leg.; locality code KA-0593; UF 345671 • 20 shells; Mae Hong Son Province, 35.5 km NNE of Mae Hong Son on road to Ban Huai Phung off Road 1095; 19°29'N, 97°58'E; 450 m a. s. l.; 21 Mar. 1988; K. Auffenberg leg.; locality code KA-0591; UF 345665 • 34 shells; Mae Hong Son Province, 35.1 km S Mae Hong Son, 1.7 km E of Route 108; 19°5'N, 97°58'E; 850 m a. s. l.; 23 Mar. 1988; K. Auffenberg leg.; locality code KA-0579; UF 345727. Type locality. “ Lod cave, Pang Ma Pa District, Mae Hong Son Province, 19°29'36"N, 98°17'18"E and 19°34′03″N, 98°16′41″E, 800 meters elevation … ” (Thailand). Differential diagnosis. This species is clearly distinguishable by its rough sculpture showing the spiralling pattern in combination with hooked basal and palatal plicae, as well as the inner part of the angular lamella. Distribution. This species is known from several sampling sites, all located in Mae Hong Son province where the type locality is also situated.