Costa-Silva, Vinícius; Strümpher, Werner P.; Thyssen, Patricia J.; Vaz-de-Mello, Fernando Z.
Taxonomic revision of the South American genus Polynoncus Burmeister, 1876 (Coleoptera: Scarabaeoidea: Trogidae)
Figure 5. Differential morphology in Polynoncus spp.:lateral margin of pronotum a, bulbous [P.vazdemelloi] and b, rounded [P.gemmingeri]; pronotal ridges and basal tubercles of pronotum c, fused [P.furcillifer] and d, separated (black line) [P.parafurcatus]; surface of elytra e, with tubercles [P.pedestris] and f, without tubercles [P. diffluens]; g, pronotal ridge and antero-lateral tubercle connected by (white arrow) [P. patagonicus]; h, humeral callus prominent (white arrow) in P. chilensis and i, humeral callus not prominent (white arrow) in P. mirabilis. Scale bar: 1 mm.
Figure 36. Lectotype of Trox gemmingeri Harold, 1872 (now Polynoncus gemmingeri), here designated: habitus in a, dorsal and b, lateral view; c, labels. Photos by Antoine Mantilleri (MNHN).
Figure 14. Holotype of Trox brasiliensis Vaurie, 1962 (now Polynoncus brasiliensis): habitus in a, dorsal and b, lateral view (white arrows showing the subhumeral edge); c, male genitalia in dorsal view; d, labels. Photos by Rafael Sousa (MZSP). Length of specimen: 11 mm.
Figure 37. Distribution map of Polynoncus gemmingeri (red circles), P. gordoni (green triangles), and P. hemisphaericus (blue squares) in South America. The records with a black dot in the centre indicate the type locality of the respective species.