Abacetus (Abacetillus) optimus Péringuey, 1904

Distribution in Angola (Provinces): 1) Moxico; 2) Kwanza Sul.

Material examined. Alto Ventura (Faz. Monte Café) (Calulo) (9° 59´15´´ S, 14° 50´12´´ E, 1086 m alt., 128) (KWANZA SUL), 30. XI.2015, 1 ♂, 2♀, 5. XII.2015, 1 ♀, DO, A. Serrano & R. Capela leg., ASC; Mussende (Calulo) (9° 57´00´´ S, 14° 47´36´´ E, 905 m alt., 128) (KWANZA SUL), 28.XI‒5. XII.2015, 3 ♀, PF, A. Serrano & R. Capela leg., ASC; Calulo-Cabuta (9° 53´59´´ S, 14° 54´26´´ E, 831 m alt., 128) (KWANZA SUL), 29.XI‒ 6. XII.2015, 8 ♂, 9♀, PF, A. Serrano & R. Capela leg., ASC .

Remarks. A species widespread throughout Angola, Zimbabwe, Mozambique and South Africa (Straneo 1958, 1959, 1991). Adults were found in activity within the litter of secondary rainforests together with adults of some tiger and ground beetles [e.g. Dromica (Foveodromica) sp., A. distinctus, Disphericus tarsalis, C. magnicollis discrepans, G. procera capelai ssp. n.] and collected also by pitfall trapping in the same habitats. It is a new record for the Kwanza Sul Province.