Acrotritia ardua (C. L. Koch, 1841)

(Fig. 13A–F)

Measurements of one of specimens from sample: South–West Province, Mt. Koup Ecological Reserve, Mt. Koup at Nyasoso, 19–21.V.2006, about 6 km N of Loum, latitude 04°49'09.18"N, longitude 09°42'27.18"E, altitude 1550m, foggy submontane forest, litter and soil sifting sample, leg V. Grebennikov, prodorsum: length 293, width 217, height 101; prodorsal setae: sensillus 97, interlamellar (in) 106, lamellar (le) 81, rostral (ro) 56, exobothridial (ex) 10; notogaster: length 596, width 515, height 444; notogastral setae: c 1 101, c 1/ c 1 -d 1=0.74.

Remarks. Specimens from this sample have monodactylous tarsi IV. This common species normally have heterotridactylous tarsi IV.