Sphaerobelum aesculus Rosenmejer & Wesener 2021

Sphaerobelum aesculus Rosenmejer & Wesener, 2021 Figs 15 A, B, 16 Sphaerobelum aesculus Rosenmejer & Wesener, 2021 in Rosenmejer et al. 2021: 114. Sphaerobelum aesculus — Likhitrakarn et al. 2023: 55; Srisonchai et al. 2023: 52. New material examined: Thailand • ♀ (MZKKU), Nakhon Si Thammarat Province, Lan Saka District, Khao Kaeo Subdistrict, Kaeo Surakan Cave, 60 m a. s. l., 8°21'40.3"N, 99°47'07.4"E, 17 May 2023, K. Srikampha & R. Srisonchai coll. • 2 ♂♂ (MZKKU), Surat Thani Province, Phanom District, Mae Yai Waterfall, 400 m a. s. l., 8°53'18.0"N, 98°29'58.9"E, 10 July 2017, R. Srisonchai & C. Sutcharit coll. • ♂ (MZKKU), Surat Thani Province, Phanom District, Waterfall in Khao Sok National Park, 6 May 2017, R. Srisonchai & C. Sutcharit coll. • ♂, ♀ (MZKKU), Surat Thani Province, Wiang Sa District, Khiri Rat Pattana Temple (Wat Khao Poon), 68 m a. s. l., 8°31'37"N, 99°22'59"E, 4 July 2017, R. Srisonchai & C. Sutcharit coll. Distribution. This species is currently known from the limestone areas in Krabi, Nakhon Si Thammarat, Phuket, and Surat Thani Provinces. Remarks. No morphological variation has been observed in the examined specimens, while the intraspecific genetic distance based on the 658 base pairs COI fragment ranges to 6.1 %.