Atrocrates

Iwan, Dariusz, 2016, Species groups in the genus Atrocrates Koch, 1956 (Coleoptera: Tenebrionidae: Pedinini), Zootaxa 4175 (6), pp. 571-587 : 584

Key for species groups of Atrocrates

1. Mid part of mentum widened anteriad ( Fig. 27 )............................................... occultator -group

-. Mid part of mentum narrowed anteriad ( Figs 5 , 9 , 15, 20 , 23 , 34 , 50 )........................................... 2

2. Pronotal sides rounded or parallelsided basally, widest at 1/3-1/2 from base; posterior pronotal angles not produced posteriad ( Figs 2 , 10 , 16 , 35 , 52 )................................................................................ 3

-. Pronotal sides narrowed anteriad, widest at base; posterior pronotal angles produced posteriad ( Figs 7 , 21 , 24 ).......... 6

3. Male mid tibia simple ( Fig. 4 )................................................................ bellamyi -group

-. Male mid tibia with denticle ( Figs 14 , 18, 19 , 44, 45 , 60 )..................................................... 4

4. Elytral humeri obtuse ( Fig. 17 )............................................................ coconatae -group

-. Elytral humeri rectangular ( Figs 12 , 36 , 53 )............................................................... 5

5. Elytral humeri protruding outwards ( Fig. 12 )................................................. bisinuatus -group

-. Elytral humeri not protruding outwards ( Figs 36 , 53 ).............................................. galbasi -group

6. Male mid tibiae S-like, with large, preapical denticle ( Fig. 22 )..................................... formosus -group

-. Male mid tibiae slightly widened, with small denticle ( Figs 6 , 25 ).............................................. 7

7. Male mid tibiae with preapical denticle ( Fig. 25, 26 )........................................... evestigator -group

-. Male mid tibiae with apical denticle ( Fig. 6 ).................................................... capensis -group

Figures

FIGURES 23 – 30. Atrocrates striatus (Quensel, 1806), male (23 – 26). A. occultator Iwan, 1998, male (27 – 30). Mentum (23, 27). Pronotum (24, 28). Mid tibia, ventral (25, 30). Mid tibia, inside (26). Pronotal posteriori angle and elytral humerus (29).

FIGURES 1 – 8. Atrocrates garbarczyki Iwan, 1998, male (1 – 4), A. pliskoae Iwan, 1998 (5 – 8). Head, ventral (1). Pronotum (2, 7). Fore leg (3). Mid leg (4). Mentum (5). Mid tibia (6). Pronotal posterior angle (8).

FIGURES 9 – 14. Atrocrates bredasdorpensis Iwan, 1998, male. Mentum (9). Pronotum (10). Pronotal posterior angle (11). Pronotal posterior angle and elytral humerus (12). Fore leg (13). Fore tibia (14).

FIGURES 15 – 22. Atrocrates splendidus Iwan, 1998, male (15 – 17). A. robustus Iwan, 1998 (18, 19); A. libidinosus Iwan, 1998 (20 – 22). Mentum (15, 20). Pronotum (16, 21). Elytra (17). Fore tibia (18). Apex of fore tibia (19). Mid tibia (22).

FIGURES 31 – 38. Atrocrates galbasi sp. nov., male. Head, dorsal (31). Eye, dorsal (32). Antenna (33). Mentum (34). Pronotum (35). Elytral humerus (36). Prothorax, ventral (37). Meso- and metathorax ventral (38).

FIGURES 47 – 54. Atrocrates matthewsi sp. nov., male. Head, dorsal (47). Eye, dorsal (48). Head, ventral (49). Mentum (50). Antenna (51). Pronotum (52). Basal part of elytra (53). Posterior part of elytra (54).

FIGURES 39 – 46. Atrocrates galbasi sp. nov., male. 4 th and 5 th abdominal ventrites (39). Fore leg (40). Fore tibia, dorsal (41). Fore tibia, ventral (42). Mid tibia, dorsal (43). Mid tibia, inside (44). Mid tibia, ventral (45). Hind tibia, ventral (46).

FIGURES 55 – 62. Atrocrates matthewsi sp. nov., female. Prothorax, ventral (55). Meso- and metathorax ventral (56). Meso- and metathorax ventral and abdomen (57). 3 rd, 4 th and 5 th abdominal ventrites (58). Fore tibia, ventral (59). Mid tibia, ventral (60). Hind tibia, ventral (61). Apex of fore tibia, ventral (62).