Review of Plonaphacarus (Acari: Oribatida: Steganacaridae), with descriptions of eight new species from China Author Liu, Dong Author Wu, Donghui Author Chen, Jun text Zootaxa 2011 2739 1 26 journal article 10.5281/zenodo.201395 93dda56c-9c55-4ca2-a84d-7b2b6dbd52f8 1175-5326 201395 Key to species of Plonaphacarus reported from China 1 Anterodorsal part of notogaster protrudent, covering posterior part of prodorsum...................................2 - Anterodorsal part of notogaster normal, not covering posterior part of prodorsum................................... 4 2 Frontal part of notogaster not concave in dorsal view; setae c1 not much more longer than other notogastral setae......... 3 - Frontal part of notogaster concave in dorsal view; setae c1 much more longer than other notogastral setae. P. concavus sp. nov. 3 Most notogastral setae short and bacilliform; prodorsum without lateral carina and posterior furrow... P. hainanensis sp. nov. - Most notogastral setae long and setiform; prodorsum with lateral carinae and posterior furrows........ P. protrusus sp. nov. 4 Prodorsum with four dorsal carinae....................................................................... 5 - Prodorsum with less than four dorsal carinae................................................................ 6 5 Sensilli long with narrow pedicel and fusiform head; lateral carinae long.......................... P. scrupeus Niedbała - Sensilli short with narrow pedicel and round head; lateral carinae absent........................... P. rotundus sp. nov. 6 Prodorsum without dorsal carina.......................................................................... 7 - Prodorsum with dorsal carinae............................................................................ 8 7 Lateral carinae of prodorsum long, extending beyond sinus; sensilli long; rostral setae semi-erect.......... P. kugohi (Aoki) - Lateral carinae of prodorsum short, not beyond sinus; sensilli short; rostral setae procumbent......... P. foveolatus sp. nov. 8 Prodorsum with two low dorsal carinae.................................................................... 9 - Prodorsum with one very strong crown-like crista............................................. P. cristatus sp. nov. 9 Prodorsum with two dorsal carinae; exobothridial setae vestigial............................... P. lanceolatus sp. nov. - Prodorsum without dorsal carina; exobothridial setae not vestigial.............................. P. bicarinatus sp. nov.