A–I: Antennae of Attaphila species of various age. A, H, I: Presumably second stage larva (head width 0.52 mm), with enlarged details of the proximal (H) and distal regions (I, distal end to the right), both from (A); B–E: intermediate and late larval stages, head width 0.66 (B), 0.61 (C), 0.76 (D), 0.73 mm (E); F, G: imagines. J–M: Imaginal antennae of Blattellidae species, in (J) showing parts of the proximal, intermediate and distal region, in (K–M) only of the proximal and distal region. ― Species: A, C, E, H, I: Attaphila paucisetosa (A, H, I: Colombia, Cb 4/3; C: Bo 1458; E: Bo 1433); B, D, F: A. aptera (B: Bo 1457; D: Bo 1292; F: Bo 1225); G: A. bergi (Bo 1274); J: Blattella germanica (ex cult.); K: Symploce pallens (ex cult.); L: Xestoblatta cantralli (Costa Rica, CR 15); M: Ischnoptera sp. (Costa Rica, CR 13/1). ― Abbreviations and symbols: sc scapus; pc pedicellus; me meriston (first flagellomere of current stage); + new proximal flagellomeres generated by a division of the meriston into two or three flagellomeres during the preceding intermoult period in B, E, H, in C, D the division had presumably already occurred one moult earlier; L- early larval stage; L+ intermediate or late larval stage; Im imago.