Mesoplophoroidea (Acari, Oribatida) of China Author Liu, Dong text Zootaxa 2016 2016-02-29 4084 4 519 539 journal article 31447 10.11646/zootaxa.4084.4.4 65b49fb4-4956-42e4-bdfa-b3b0c5fc7f5f 1175-5326 1052321 AF140B6F-66F3-4287-825D-FECA65FEF0C3 Key to species of Mesoplophora 1 Two pairs of anal setae present..................................................... subgenus Mesoplophora ....2 - Three to four pairs of anal setae present...............................................subgenus Parplophora ....23 2 Lamellar setae situated closer to rostral setae than to interlamellar setae............................. M . ( M .) permodica - Lamellar setae situated closer to interlamellar setae than to rostral setae........................................... 3 3 Sensilli with slightly fusiform head....................................................................... 4 - Sensilli without head................................................................................... 6 4 Sensilli smooth; lateral carinae of prodorsum absent.......................................... M . ( M .) parapulchra - Sensilli covered with spines; lateral carinae of prodorsum present............................................... 5 5 “Notogastral” setae long, setae c 3 longer than half of distance between setae c 3 and c p; nine pairs of rough ventral setae present........................................................................................ M . ( M .) hauseri - “Notogastral” setae short, setae c 3 shorter than half of distance between setae c 3 and c p; eight pairs of smooth ventral setae present......................................................................................... M . ( M .) ignota 6 Prodorsal and most “notogastral” setae very short and fine..................................... M . ( M .) brachysetosa - Nearly all prodorsal and “notogastral” setae much longer and thicker than their alveoli............................... 7 7 Sensilli smooth....................................................................................... 8 - Sensilli covered with spines............................................................................ 13 8 Distance between rostral setae considerably longer than distance between interlamellar setae.............. M . ( M .) bolivari - Distance between rostral setae shorter than distance between interlamellar setae.....................................9 9 Exobothridial setae longer than diameter of bothridia; “notogastral” setae very long, setae c 3 longer than distance between setae c 3 and c p.......................................................................... M . ( M .) longisetosa - Exobothridial setae shorter than diameter of bothridia; “notogastral” setae in normal length, setae c 3 shorter than distance between setae c 3 and c p................................................................................10 10 Ten pairs of ventral setae present; formula of genital setae 5:2........................................ M . ( M .) bacilla - Eight or nine pairs of ventral setae present; formula of genital setae 6:1.......................................... 11 11 Nine pairs of ventral setae present; aggenital position with one pair of setae........................ M . ( M .) parabacilla - Eight pairs of ventral setae present; aggenital position without setae............................................. 12 12 Lateral carinae of prodorsum present; all “notogastral “setae similar in shape.......................... M . ( M .) frogneri - Lateral carinae of prodorsum absent; setae c 3 much thinner than other “notogastral” setae...... M . ( M .) heterotricha sp. nov. 13 Formula of genital setae 5:2............................................................................ 14 - Formula of genital setae 6:1............................................................................ 16 14 Prodorsum with lateral carinae; setae e 1 and e 2 thicker than other “notogastral” setae.................... M . ( M .) invisitata - Prodorsum without lateral carinae; all “notogastral” setae similar in shape........................................15