Polana (H.) arcana sp. nov. (15–24) Holotype male: (15) habitus, dorsal view; (16) habitus, lateral view; (17) head, frontal view; (18-24) male terminalia: (18) sternite VIII, ventral view; (19) pygofer and subgenital plate, lateral view; (20) subgenital plate, ventral view; (21) style and connective, dorsal view; (22) style, lateral view; (23) aedeagus, lateral view; (24) aedeagus posterior view; (25–28) Paratype female: (25) apical portion of abdomen, ventral view; (26) genital capsule, lateral view; (27) first valvifer and first valvula, lateral view; (28) second valvulae, lateral view. Scale bars: 15–16 = 2.0 mm, 17, 25 = 1.0 mm, 18–19, 26-28 = 0.5 mm, 20–24 = 0.25 mm.