Couplet 179

179a:  Tarsi appearing 4-4-3 (actually 5-5-4, pseudotetramerous/pseudotrimerous); eyes coarsely faceted, appearing hairy, setae
between facets as coarse, long and dense as those on front and sides of head adjacent to eyes; 1-4 mm

Aderidae   p. 440

179b:  Tarsi distinctly 5-5-4; eyes with or without setae between facets, if present, then setae not as coarse, long or obvious as on front and sides of head adjacent to the eyes; 4-21 mm