Prolixus, Beard, Fan & Walter, 2005

Xu, Yun, Zhang, Fei-Ping & Zhang, Zhi-Qiang, 2018, Description of a new species of Prolixus (Acari: Trombidiformes: Tenuipalpidae from Austroderia splendens (Poaceae) in New Zealand, with discussion of its ontogenetic patterns in chaetotaxy, Zootaxa 4540 (1), pp. 158-177 : 176

Key to adult females of Prolixus

1. Dorsolateral setae f 2 present; aggenital setae ag present................................................................................................................2

- Dorsolateral setae f 2 absent; setae ag absent..................................................................................................................................3

2. Spermatheca ending in a bulb-shaped vesicle; coxae I–IV with 2, 2, 1, 1 setae, seta 1c present; femora I–IV with 4, 4, 2, 2 setae; genua I–IV with 2, 2, 0, 0 setae..................................................................................................................... P. splendens sp. nov.

- Spermatheca ending in a cylinder-shaped vesicle; coxae I–IV with 1, 2, 1, 1 setae, seta 1c absent; femora I–IV with 4, 4, 2, 1 setae; genua I–IV with 2, 1, 0, 0 setae.......................................................................................... P. forsteri Beard, Fan & Walter

3. Dorsocentral setae e 1 absent; medioventral setae 4a absent; tarsi I–IV with 6+ ω, 6+ ω, 3, 3 setae, (seta tc’’ absent); spermatheca ending in a bulbiform-shaped vesicle......................................................................................... P. setifolius Xu, Huang & Zhang

- Dorsocentral setae e 1 present; medioventral seta 4a present, 4a 1 and 4a 2; tarsi I–IV with 7+ ω, 7+ ω, 4, 4 setae, (seta tc’’ present); spermatheca ending in a cylinder-shaped vesicle..........................................................................................................................4

4. Setae l′ on femora I absent; coxal setae 1c, 3b and 4b present................................................................. P. meyerae Xu & Zhang

- Setae l′ on femora I present; coxal setae 1c, 3b and 4b absent......................................................................................................5

5. Coxal setae 2c present; trochanters I–IV nude; femora I–IV with 4, 3, 2, 2 setae; genus I–IV with 2, 1, 0, 0 setae; setae 3a setiform ......................................................................................................................................... P. corruginus Beard, Fan & Walter

- Coxal setae 2c absent; trochanters I–III with setae v′, v′ and l′ respectively, trochanter IV nude; femora I–IV with 4, 4, 2, 2 setae; genus I–IV with 2, 2, 0, 0 setae; setae 3a flagelliform............................................................... P. nicholasi Xu, Huang & Zhang