New Species Of Apterobiroina L. Papp And Bentrovata Richards (Diptera, Sphaeroceridae) From Australia Author Papp, László text Acta Zoologica Academiae Scientiarum Hungaricae 2021 2021-05-31 67 2 101 117 http://dx.doi.org/10.17109/azh.67.2.101.2021 journal article 10.17109/AZH.67.2.101.2021 2064-2474 12626417 KEY TO THE KNOWN SPECIES OF BENTROVATA RICHARDS, 1973 1. Frons without longitudinal stripes. Large, blunt, black thorns/pegs of ventro-medial process of synsternite unarranged ( Figs 21–22 ). Pseudocerci large ( Fig. 23 ). Female spermathecae long ovoid ( Fig. 28 ), its neck without warts. Thorax contrastingly yellow. B. flavithorax sp. n. – Frons with 5 longitudinal stripes. Large, blunt, black thorns/pegs of ventro-medial process of synsternite in 1 row ( Figs 31–32 ). Pseudocerci small ( Fig. 47 ) or indistinct ( Fig. 33 ). Female spermathecae pear-shaped ( Figs 39–40 , 53 ) 2