Xantholinini

Janák, Jiří & Bordoni, Arnaldo, 2015, Revision of the genus Thyreocephalus and description of Afrus gen. nov. of Africa south of the Sahara (Coleoptera: Staphylinidae: Staphylininae), Zootaxa 4038 (1), pp. 1-94 : 6

Key to African Xantholinini genera south of the Sahara lacking dorsal rows of punctures on the prono-

tum (assigned in the past to Thyreocephalus and Eulissus )

1 Superior line of pronotal hypomeron not turning downwards until close to anterior angle and distinctly separated from inferior line ( Janák & Bordoni 2014: Figs. 7 , 26 , 51 )................................................. Achmonia Bordoni

- Superior line of pronotal hypomeron turning downwards well before middle, joining or almost joining inferior line next to front margin of procoxae and continuing onto anterior margin of pronotum ( Figs. 6 , 26 )............................. 2

2 Metatibia with apical ctenidium only ( Fig. 15 ). Head with large impression behind the eyes ( Figs. 3–5, 7 ). Lateral part of temple with evident subelliptical groove ( Figs. 4, 7 )................................................. Afrus gen. nov.

- Metatibia with apical and subapical ctenidium ( Figs. 27, 28 ). Head without large impression behind eyes ( Figs. 24, 25 ). Temple variable, but laterally never with subelliptical groove........................... Thyreocephalus Guérin-Méneville

Figures

FIGURES 3 – 7. 3, 4, Afrus collarti (Cameron); 5 – 7, Afrus spegazzinii (Bernhauer). 3, 5, head and anterior part of pronotum (iop—internal ocular puncture, pop—posterior ocular punctures); 4, 7, lateral part of head (SG—subelliptical groove); 6, lateral part of ventral side of pronotum (SL—superior line, IL—inferior line). Scale 0.5 mm.

FIGURES 24 – 28. 24, Thyreocephalus brunneiventris (Tottenham); 25, 27, T. alluaudi (Fauvel); 26, T. interocularis (Eppelsheim); 28, T. ferox (Harold); 24, 25, head and anterior part of pronotum; 26, ventral side of pronotum (ap—antesternal plate, pr—prosternum, ip—intercoxal process, SL—superior line, IL—inferior line); 27, 28, metatibia (ac—apical ctenidium, sac—subapical ctenidium). Scale 0.5 mm.

FIGURES 51 – 56. Thyreocephalus secretus (Bernhauer); 51, head and pronotum; 52, labrum; 53, male tergite 10; 54, male sternite 9; 55, aedeagus; 56, paramere.

FIGURES 9 – 15. Afrus spegazzinii (Bernhauer); 9, head and pronotum; 10, labrum; 11, male tergite 10; 12, male sternite 9; 13, aedeagus; 14, female genital segment (fp—fused pleurites, s—sternite, ss—supplementary sclerites); 15, metatibia (ac—apical ctenidium).