New Oligaphorura species (Collembola: Onychiuridae) from the forests of East Asia Author Sun, Xin Author Shveenkova, Yu. B. Author Xie, Zhijing Author Babenko, A. B. text Zootaxa 2019 2019-08-28 4661 2 256 270 journal article 25877 10.11646/zootaxa.4661.2.2 622ed67d-ef4f-48f1-9ba0-dc351fdcbf5a 1175-5326 3379447 EDD029B9-77E9-440E-9AF9-D61C61E772C6 Key to the Oligaphorura species of East Asia and adjacent areas* Main diagnostic characters are shown in Table 2. 1 With 4+4 pso at antennal base........................................................................... 2 - With 3+3 pso at antennal base........................................................................... 7 2 Both Th. II–III with lateral ms; anal spines present; one anterior pso on head inside Ant. basis, three pso outside it........ 3 - Only Th. II with ms; anal spines absent.................... O. ambigua Babenko & Fjellberg, 2015 ( Russia , Magadan ) 3 Head with only 2+2 posterior pso; axial chaeta a0’ on head present............................................. 4 - Head with 3+3 posterior pso; axial chaeta a0’ on head absent.................................................. 5 4 Abdominal terga with 44454 pso........................................ O. kedroviensis sp. nov. ( Russia , Far East) - Abdominal terga with 5(6)5554 pso........................................ O. ussurica sp. nov. ( Russia , Far East) 5 ABC labium........................................ O. chankaensis Su & Wu, 2012 (in: Sun & Wu 2012c ) ( China ) - Labial papilla B not thickened, i.e. A or AC labium.......................................................... 6 6 A labium; abdominal pso dorsally as follows 54453.......................... O. montana Weiner, 1994 ( North Korea ) - AC labium; abdominal terga with 54464 pso.......... O. pseudomontana Su & Wu, 2012 (in: Sun & Wu 2012b ) ( China ) 7 Abd. IV with only 3 dorsal pso.......................................................................... 8 - Abd. IV with 4–5 dorsal pso............................................................................ 9 8 Th. I with 1+1 dorsal pso; AIIIO with 4 papillae................................... O. palissai ( Yosii, 1971 ) ( Nepal ) - Th. I without pso; AIIIO with 5 papillae.................................... O. tottabetsuensis ( Yosii, 1972 ) ( Japan ) 9 Posterior pso on head in unusual (triangular) arrangement............ O. kurtshevae ( Martynova, 1981 ) ( Russia , Far East) - Posterior pso on head in usual (not triangular) arrangement................................................... 10 10 Th. III without ms................................................................................... 11 - Both Th. II–III with ms............................................................................... 15 11 Furcal remnant with cuticular fold and 1+1 posterior chaetae..................... O. absoloni ( Börner, 1901 ) ( Germany ) - Fr with cuticular fold and 2+2 posterior chaetae............................................................ 12 12 Th. I without pso....................................... O. nataliae ( Fjellberg, 1987 ) ( Russia , Far East, Chukotka ) - Th. I with 1+1 dorsal pso.............................................................................. 13 13 AC labium................................................. O. sabulosa Babenko, 2007 ( Russia , Middle Siberia) - A labium.......................................................................................... 14 14 Ventral psx 10/000/212201+ 1 m ; psx on upper Sc 1-2(1)-2(1); 10 guards on labial palp........................................... O. ursi ( Fjellberg, 1984 ) sensu Babenko & Fjellberg 2015 ( Norway , Sweden , Greenland , Alaska, NE Siberia) - Ventral psx 0/000/ 122200 ; psx on upper Sc completely absent; 11 guards on labial palp................................................................................................... O. ursi sensu Sun & Wu 2012 ( China ) 15 Furcal remnant with 1+1 posterior chaetae................................................................ 16 - Furcal remnant with 2+2 posterior chaetae................................................................ 21 16 Furcal remnant with cuticular fold...................................................................... 17 - Furcal remnant as finely granulated area without cuticular fold................................................ 18 17 Abdominal tergum IV with 5 pso; ABC labium........ O. changbaiensis (Sun & Wu, 2012; in: Sun & Wu 2012b ) ( China ) - Abdominal tergum IV with 4 pso; AC labium.............. O. shifangensis Liu & Sun, 2019 (in: Liu et al . 2019 ) ( China ) 18 Th. I without pso................................. O. sanjiangensis (Sun & Wu, 2012; in: Sun & Wu 2012a ) ( China ) - Th. I with 1+1 pso................................................................................... 19 19 A labium........................................ O. jingyueensis (Sun & Wu, 2012; in Sun & Wu 2012c ) ( China ) - AC labium......................................................................................... 20 20 Abdominal terga IV–V with 5 and 4 pso, respectively............................ O. wanglangensis sp. nov. ( China ) - Abdominal terga IV–V with 4 and 3 pso, respectively.................... O. alnus ( Fjellberg, 1987 ) ( Russia , Magadan ) 21 Furcal remnant without cuticular fold; upper Sc with 23(2)3 pso.................................................................................................... O. duocellata Babenko & Fjellberg, 2015 ( Russia , Magadan ) - Furcal remnant with cuticular fold; upper Sc with 111 pso.................................................... 22 22 Th. I without pso.................................................................................... 23 - Th. I with 1+1 pso................................................................................... 25 23 Thoracic sterna without chaetae.................................. O. interrupta ( Fjellberg, 1987 ) ( Russia , Magadan ) - Ventral chaetae on Th. II–III present..................................................................... 24 24 Ventral psx: 10/000/222201+ 1 m ; axial chaetae a0’ on head absent................ O. pingicola ( Fjellberg, 1987 ) (Alaska) - Ventral psx indistinct; axial chaetae a0’on head present … O. koreana ( Weiner, 1994 ) ( North Korea ) 25 Th. II–III with ventral chaetae.................................. O. aborigensis ( Fjellberg, 1987 ) ( Russia , Magadan ) - Thoracic sterna without chaetae........................................................................ 26 26 Two anterior pso on head inside Ant. basis; chaetae p1 and p2 on head set in line; axial chaetae a0’ on head absent............................................................................ O. judithae ( Weiner, 1994 ) ( North Korea ) - One anterior pso on head inside Ant. basis; chaetae p 1 in front of p2 on head; axial chaetae a0’ on head present.............................................................................. O. linderae ( Weiner, 1994 ) ( North Korea )