Diapromorpha Lacordaire, 1848

Key to Chinese species of the genus Diapromorpha Lacordaire, 1848

1. Elytra with dense and coarse punctures, puncture interval 1–4 x of puncture diameter............................... 2

- Elytra with fine punctures, puncture interval much larger than puncture diameter................................... 4

2. Labrum, clypeus, tibia and tarsi yellowish brown (body length males: 5.1–5.9 mm; females: 5.7–7.0 mm)................................................................................................. D. flavolabiata sp. nov.

- Labrum, clypeus pitchy black, legs entirely black............................................................ 3

3. Aedeagus ventral side with raised ridge and transverse wrinkles, apex not protruding (body length males: 5.3–6.4 mm; females: 6.1–7.5 mm)......................................................................... D. pallens (Fabricius)

- Aedeagus ventral side smooth, without ridge and wrinkles, apex protruding (body length males: 5.0– 5.3 mm; females: 5.6–6.0 mm).............................................................. D. dejeani yunnana Medvedev and Kantner

4. Legs entirely black.................................................................. D. pinguis (Lacordaire)

- Tibia and tarsi yellowish (body length male: 5.5–6.7 mm; female: 6.1–7.8 mm)................. D. sexmaculata (Jacoby)