Dichotomius (Cephagonus) quadraticeps (Felsche)

Nunes, Rafael V. & Vaz-de-Mello, Fernando Z., 2019, Taxonomic revision of Dichotomius (Cephagonus) Luederwaldt 1929 and the taxonomic status of remaining Dichotomius Hope 1838 subgenera (Coleoptera: Scarabaeidae: Scarabaeinae: Dichotomiini), Journal of Natural History 53 (37), pp. 2231-2351 : 2302-2303

Group 3: Dichotomius (Cephagonus) quadraticeps (Felsche) species-group

Diagnosis. species of this group are recognised among selenocopris by the combination of the following characters: males clypeo-genal angulation straight or sub straight and/or expanded folded upward and/or acuteı producing a teeth; genae border straight or slightly curved inward; at least the 1st elytral interstriae convex (as on D. spadiceus group); pronotal lateral borders smooth and females sixth ventrite three to four times larger than fifth ventrite and bearing a weak sinuosity or pair of tubercles on the midportion ( Figure 9 (e-g)).

Representatives. 3.1: D. quadraticeps ; 3.2: D. fissiceps ; 3.3: D. semicircularis ; 3.4: D. reichei ; 3.5: D. clypeatus ; 3.6: D. aielloae ; 3.7: D. arnaudi ; 3.8: D. asenjoi ; 3.9: D. barbarae ; 3.10: D. blancoi ; 3.11: D. candango ; 3.12: D. edmondsi ; 3.13: D. feeri ; 3.14: D. frizzasae ; 3.15: D. furtadoi ; 3.16: D. gardneri ; 3.17: D. emas ; 3.18: D. marcoscarvalhoi ; 3.19: D. paschoali ; 3.20: D. ricardosilvai ; 3.21: D. tissianiae .

Figures

Figure 9. (a) Abdominal ventrites of a male of D. spadiceus. (b) ventrites of a female of D. spadiceus. (c) abdominal ventrites of a female of D. itatiaiaensisı (d) detail of C; (e) abdominal ventrites of a female of D. fissus. (f) Adbominal ventrites of a female of D. reichei. (g) Abdominal ventrites of a female of D. lucianomourai.