Genus Seira Lubbock, 1870
The following characters are shared by Seira species and are not repeated in the descriptions:
Scales heavily ciliate, oval or elongated and apically rounded (rarely truncate, pointed or irregular) present on body; mac heavily ciliate apically, strongly or lightly foot-shaped or acuminate; head mic ciliate, tergal mic smooth and apically ramificate or simple (Fig. 1).
Habitus Lepidocyrtus -like with projected Th. II anterior hood; antennae shorter than the trunk length (Figs 2, 7, 12), Ant I–IV with several blunt sens of different sizes plus ciliate chaetae. Eyes 8+8 (Figs 3E, 8B, 13C). Four prelabral ciliate chaetae; labral formula with 4 (a1–2), 5 (m0–2), 5 (p0–2) smooth chaetae, a1 thicker, p0–1 larger. Labial palp with five main papillae (A–E) plus one hypostomal papilla (H) with 0,5, 0,4, 4,2 guard appendages, respectively; labium with five smooth proximal chaetae. Basolateral and basomedian labial fields with chaetae a1– 5 smooth, M1–2, E, L1–2 ciliate, r reduced. Sublobal plate with three smooth chaetae.
Th II–Abd V with ms and sens formula 1,0|1,0,1,0,0 and 1, 1|0,2,2, +,3, respectively (Figs 4–5); Abd II–IV bothriotrichal formula 2 (a5, m2), 3 (a5, m2, m5), 3 (T2, T4, D3) (Figs 4D, 5 A–B); bothriotricha with accessory lance-shaped chaetae (Fig. 1).
Pretarsi with one minute smooth chaeta on both sides; ungues inner side with 4 teeth, 2 paired basal teeth, 1 unpaired median and 1 unpaired apical; outer side with 2 paired lateral teeth and one median lamella apically pointed (Figs 11 E–F, 16E).
Mucro falcate, without basal spine.