6. Donacia (Donaciomima) splendens hiurai

Aedeagus (Fig. 14): Median lobe slender, apical part of median lobe expanded; ventral edge of median orifice projecting at obtuse angle; median foramen expanding apical 1/3 of ventral surface of median lobe. Tegmen in ventrum forming triangular lobe in lateral view and in dorsum forming slender lobe in dorsal view.

Male internal reproductive system (Fig. 26): Testis discoid in shape, milky white in color. Accessory glands tubular; of a pair of accessory glands, shorter gland about half length to and longer gland 2/3 times as long as maximal width of 2 testis lobes combined. Lateral ejaculatory duct claviform, a little over 1/2 times as long as maximal width of 2 testis lobes combined; common ejaculatory duct a little less than 2.5 times as long as maximal width of 2 testis lobes combined.

Female internal reproductive system (Figs. 44, 45, 64–66): Spermathecal organ connected to bursa copulatrix ventro-apically. Spermathecal capsule hook- to sickle-shaped, tapering toward apex, light yellowish brown in color; spermathecal wall relatively thick apically and proximally; spermathecal duct uniform in width, about 3/4 times as long as maximal length of spermathecal capsule; spermathecal gland tubular, 4–5 times as long as maximal length of spermathecal capsule.