Agetocera

Key to the species of Agetocera in Taiwan

1. Elytra wider, 1.4–1.5 times longer than wide (Figs 1, 3); male antennomere IX cylindrical and twisted (Fig. 15) ..... .............................................................................................................................................. A. discedens Weise, 1922

- Elytra narrower, 1.6–1.7 times longer than wide (Figs 5, 7); male antennomere IX flattened dorsally (Figs 16, 17) 2

2. Antennomeres IX–XI black, male antennomere IX strongly flattened dorsally (Fig. 16); female antnnomere IX as narrow as X (Fig. 12); median process of male genitalia extremely flattened dorso-ventrally (Fig. 31) ...................... ................................................................................................................................................. A. taiwana Chûjô, 1962

- Antennomeres VIII–XI black (Figs. 5–8); male antennomere IX moderately flattened dorsally (Fig. 17); median process of male genitalia moderately flattened dorso-ventrally (Fig. 32) or extremely flattened laterally (Figs 33, 34) ...................................................................................................................................................................................... 3

3. Median process of male genitalia moderately flattened dorso-ventrally (Fig. 32) ........ A. huatungensis, new species

- Median process of male genitalia extremely flattened laterally (Figs 32, 33).............................................................. 4

4. Lateral processes of male genitalia short and narrow, lateral spiculae long and recurved apically (Fig. 33) ............... ..................................................................................................................................................... A. yuae, new species

- Lateral processes of male genitalia long and wide, lateral spiculae short and not recuved apically (Fig. 34) .............. .................................................................................................................................................... A. choui, new species