8. Donacia (Donaciomima) nitidior

Aedeagus (Fig. 16): Median lobe slender, ventral edge of median orifice projecting at right angle; median foramen expanding apical 1/3 of ventral surface of median lobe. Tegmen in ventrum triangular lobe in lateral view and in dorsum forming slender lobe with relatively short hairs in dorsal view.

Male internal reproductive system (Fig. 28): Testis discoid in shape, milky white in color. Accessory glands tubular, tapering toward base; of a pair of accessory glands, shorter gland about 2/3 times and longer gland 3/4–1 times as long as maximal width of 2 testis lobes combined. Lateral ejaculatory duct slightly tapering toward base, 1/2–2/3 times as long as maximal width of 2 testis lobes combined; common ejaculatory duct 2–2.5 times as long as maximal width of 2 testis lobes combined.

Female internal reproductive system (Figs. 48, 49 & 69): Spermathecal organ connected to bursa copulatrix apically. Spermathecal capsule hook-shaped, tapering toward apex, constricted at middle; spermathecal duct uniform in width, a little less than half length to maximal length of spermathecal capsule; spermathecal gland tubular, becoming bold toward apex, 3–3.5 times as long as maximal length of spermathecal capsule.