Characters;"S. macrochaeta sp. nov.";"S. longispina sp. nov.";"S. macropora";"S. zhongi";"S. communa";"S. minuta" "Number of macrosetae (M)";10;8;6;8;8;4 "Formula of M-setae";4/4/2;4/2/2;2/2/2;4/2/2;4/2/2;0/2/2 "length of M-setae (μm)";58–73;21–28;25–37;22–37;20–30;12–20 "length of a0 setae (μm)";12–15;7–8;12;12–15;10–16;7–11 M/a0;4–5.6;2.8–3.7;2–3;1.5–2.7;1.6–2.7;1.4–2.4