Spinibdella

Theron, Elizabeth Omukunda Pieter D & Ueckermann, E A, 2012, Spinibdella Thor (Acari: Bdellidae) from southern Africa: descriptions of five new species and the redescription of S. thori (Meyer & Ryke), Zootaxa 3304, pp. 1-24 : 22

SPinibdella : key to species of Southern Africa

1. Centre of prodorsum with longitudinal striations...................................................... S. cronini

- Centre of prodorsum with transverse striations............................................................... 2

2. Two detectable eyes.................................................................................... 3

- Four or detectable eyes................................................................................. 4

3. Median eye present pair probably represents second pair of lateral eyes; tibia I with 2 attenuate solenidia and genu I with duplex setae, tibia II with one blunt completely recessed solenidion..................................... S. trinomma

- Median eye absent; genu I and tibia I each with 13 attenuate solenidia, tibia II with a long slender attenuate and one blunt and partially recessed solenidia..................................................................S. polyattenuata

4. Palp shorter than hypostome; cheliceral setae minute, inserted in distal half............................. S. ankylotricha

- Palp longer than hypostome; cheliceral setae normal.......................................................... 5

5. Genua I–III without duplex setae.............................................................. S. pongolensis

- At least genua I and II with duplex setae................................................................... 6

6. Genu III with only an attenuate solenidion; prodorsum with broken striae medially....................... S. namibiensis

- Genu III with a normal duplex seta; prodorsum with solid striae medially.................................... S. thori