Suctobelbella

Liu, Dong & Wu, Donghui, 2013, Three new species of the genus Suctobelbella (Acari: Oribatida: Suctobelbidae) from Sanjiang Plain, Northeast China, Zootaxa 3637 (2), pp. 131-138 : 137

Key to species of Suctobelbella reported from China

1 Head of sensilla slender................................................................................. 2

- Head of sensilla obviously dilated, flat, disk-, ellipse- or spindle-shaped.......................................... 3

2 Rostrum with three pairs of lateral teeth; head of sensilla terminates as a thin thread.......... S. elegantula ( Hammer, 1958)

- Rostrum with one pair of lateral teeth; head of sensilla not terminates as a thin thread............. S. sanjiangensis sp. nov.

3 Head of sensilla flat, disk-, or ellipse-shaped................................................................ 4

- Head of sensilla spindle-shaped.......................................................................... 5

4 Rostrum with two rostral teeth at each side; setae c thick and barbed at distal half................... S. sinica Wen, 1997

- Rostrum with three rostral teeth at each side; setae c short and thin...................... S. variosetosa ( Hammer, 1961)

5 Notogastral setae leaf-shaped............................................... S. frondosa Aoki & Fukuyama, 1976

- Notogastral setae setiform............................................................................... 6

6 Rostrum with acute apex.......................................................... S. conica Zhao & Wen, 1993

- Rostrum with medially concave or rounded apex............................................................. 7

7 Rostral apex medially concave........................................................................... 8

- Rostral apex rounded..................................................................................10

8 Head of sensilla smooth......................................................... S. singularis ( Strenzke, 1950)

- Head of sensilla ciliated................................................................................ 9

9 Rostrum with one rostral tooth at each side; tectopedial fields narrow and closed anteriorly.............. S. obtusa sp. nov.

- Rostrum with two rostral teeth at each side; tectopedial fields broad and opened anteriorly........... S. triangulata sp. nov.

10 co.nl separated from co.nm basally; posterior margin of co.nl nearly reaches the insertion of setae c ................................................................................................ S. dispersosetosa Hammer, 1979

- co.nl connected with co.nm basally; posterior margin of co.nl far from the insertion of setae c.......... S. laiae Tseng, 1982