Diagnostic features of Batrisodes longwangshanus (A–H. male; I–K. female). A. antennal club; B. protibia; C. mesotrochanter and mesofemur; D. mesotibia; E. metatibia; F. aedeagus, in dorsal view; G. same, in lateral view; H. same, in ventral view; I. tergite VIII; J. sternite VIII; K. genital complex. Scales: A–H = 0.2 mm; I–K = 0.1 mm.