Sphaerobelum bicorne Attems, 1938, ♂ (A–G) and ♀ (H) from Song Thanh National Park. A, B Right posterior telopod, anterior and posterior views, respectively C, D right anterior telopod, posterior and anterior views, respectively E telopoditomeres 2 and 3 of right anterior telopod, lateral view F left leg 9, anterior view G left antenna H left coxa and prefemur 2 with vulva, posterior view. Scale bars: 1.0 mm, E drawn not to scale.