Key to species of Anotylus sculpturatus group from China

1. Neck with smooth area.................................................................................2

- Neck without smooth area...............................................................................5

2. Pronotum lateral margins completely crenate, forebody with large punctures and fine striae...... A. antennarius (Bernhauer)

- Pronotum lateral margins partly crenate, forebody with moderate or small punctures................................3

3. Male sternite VII with posterior margin with two big rounded processes........................... A. mimulus (Sharp)

- Male sternite VII with posterior margin with two small tubercles................................................4

4. Male sternite VII with posterior margin nearly straight, tubercles beyond posterior margin..... A. sculpturatus (Gravenhorst)

- Male sternite VII with posterior margin broadly emarginate, tubercles not beyond posterior margin.. A. inustus (Gravenhorst)

5. Clypeus coriaceous....................................................................................6

- Clypeus glabrous.....................................................................................16

6. Epistomal suture with lateral portions straight and obliquely inward.............................................. 7

- Epistomal suture with lateral portions straight and parallel....................................................10

7. Pronotum with lateral margins crenate.............................................. A. chinkiangensis (Bernhauer)

- Pronotum with lateral margins crenate on posterior half........................................................8

8. Clypeus with anterior margin straight................................................... A. benisculptilis sp. nov.

- Clypeus with anterior margin rounded.....................................................................9

9. Head with disc slightly convex and shallowly sculptured, pronotum with anterior margin broadly emarginate and anterolateral angles obtuse...................................................................... A. rectisculptilis sp. nov.

- Head with disc extremely convex and deeply sculptured, pronotum with anterior margin slightly bi-emarginate and anterolat- eral angles sharply produced......................................................... A. brevisculptilis sp. nov.

10. Clypeus with anterior margin straight, not produced......................................................... 11

- Clypeus with anterior margin rounded and produced.........................................................13

11. Clypeus flat...................................................................... A. opaciceps (Bernhauer)

- Clypeus convex......................................................................................12

12. Male sternite VII with posterior margin broadly emarginate and two small tubercles in middle........... A. mutator (Lohse)

- Male sternite VII with posterior margin abrupt and deep emarginate in middle, two big flat processes carrying some seta, with one on each side of the deep emargination, the processes slightly beyond posterior margin............. A. cognatus (Sharp)

13. Supra-antennal ridge with margin extremely convex....................................... A. varisculptilis sp. nov.

- Supra-antennal ridge with margin not strongly convex.......................................................14

14. Male sternite VII with posterior margin with two small tubercles.................................. A. sikkimi (Fauvel)

- Male sternite VII with posterior margin without tubercle......................................................15

15. Male sternite VIII with broad emargination on posterior margin................................... A. vicinus (Sharp)

- Male sternite VIII with broad and shallow dual emargination, on posterior margin, middle angle obtusely rounded and slightly beyond lateral angles posteriorly..................................................... A. subsericeus (Bernhauer)

16. Supra-antennal ridge with margin extremely convex...................................... A. nitelisculptilis sp. nov.

- Supra-antennal ridge with margin not strongly convex.......................................................17

17. Clypeus with anterior margin straight.................................................. A. extrasculptilis sp. nov.

- Clypeus with anterior margin rounded and produced...................................... A. nigelisculptilis sp. nov.