Octavius adriani Janák, 2014

Janák, Jiří, 2024, On Octavius from Maloti-Drakensberg and Golden Gate National Parks, South Africa (Coleoptera: Staphylinidae: Euaesthetinae), Zootaxa 5443 (4), pp. 495-522 : 497

Octavius adriani Janák, 2014

Figs. 1–10 , 120, 134

Octavius adriani Janák, 2014: 202

Type locality. South Africa, KwaZulu-Natal Province, Northington Forest .

Material examined (155 specimens). SOUTH AFRICA: KwaZulu-Natal: 77 ♂, 78 ♀: Maloti-Drakensberg Park , Mkomazi WA [Wilderness area], Gxalingenwa forest , 29°39.2ʼS 29°25.2ʼE, 1610 m, 15.i.2019, J. Janák lgt., Berlese extraction, leaf & log litter, sifting (TMSA, JJRC, 2 ♂ in 96 % alcohol) .

Note. Specimens from Gxalingenwa forest donʼt differ markedly from the specimens from the type locality – only the aedeagus is slightly larger (cf. Figs. 2–8 ), but with same shape of median lobe and internal structure.

Distribution. The species is currently known from Northington and Gxalingenwa ( Fig. 120 ) forests in KwaZulu-Natal Province.

Bionomics. All specimens were collected in siftings of forest litter in a patch of an indigenous forest at the elevation of about 1600 m a.s.l. and with the abundance 12.3 specimens per kg of sifted material ( Fig. 134 ).

Figures

FIGURES 1–15. 1–10. Octavius adriani Janák: 1–3, 6, 9–10, Gxaligengwa Forest; 4–5, 7–8, Fort Nottingham, paratypes. 11–15. Octavius clarkei Janák, sp. nov., 11, 13–15, holotype, 12, paratype. 1, 11, habitus; 2–5, 12–13, aedeagus ventral; 6–8, apex of aedeagus ventral; 9, 14, male sternite VIII; 10, 15, male sternite IX. Scale 1 mm: 1, 11; scales 0.05 mm: 6–8; 0.1 mm: remaining figures. LI: lateral impression, TI: transverse impression, DI: dorsal impressions, LRP: lateral ridge on pronotum, LIR: lateral internal ridge, LOR: lateral external ridge.

FIGURES 113–121. Octavius undulatus Janák, sp. nov.; 113–116, 118–119, holotype; 117, paratype. 113, habitus; 114, fore parts; 115, fore parts lateral; 116–117, aedeagus ventral; 118, male sternite VIII; 119, male sternite IX. Scale 0.5 mm: 113; scales 0.1 mm: 114–115; 116–117; 118–119; o: ommatidium. 120: Distribution of Octavius – subgroup A. 121: Distribution of Octavius – subgroup B.

FIGURES 134–135. 134: Gxalingenwa forest. 135: Portable Berlese funnels.