Size and distribution of bristles in the median part of tergites T6,7 in males (A–E) and in larval males and females (F–L) of Attaphila species, phase contrast images. A: A. bergi, male (Bo 1274). B: A. fungicola, male (LT Bo 1265). C: A. flava, male (HT Bo 1280). D: A. paucisetosa, male (Cb 2/1). E: A. paucisetosa, male, with slightly shorter bristles than in preceding specimen (Bo 1445). F: A. aptera, larval male (Bo 1291). G: A. aptera, larval female (Bo 1289). H: A. aptera, larval male (HT Bo 1232). I: A. bergi, larval male (Bo 1230); medium sized bristles belong to T6, the very long ones are from T5 covering most of T6. J: A. bergi, larval female (Bo 1285). K: A. paucisetosa, larval male (Bo 1433). L: A. paucisetosa, larval female (Bo 1293). ― Abbreviations: T5-p, T6-p, T7-p posterior borders of tergites T5, T6, T7; tr6, tr7 transversal ridges of tergites T6, T7.