Shearia longa Mikhaljova, 2012

Nefediev, P. S., 2019, New data on the millipede genus Shearia Mikhaljova, 2000 from the Russian and Mongolian Altais (Diplopoda: Chordeumatida: Diplomaragnidae), Russian Entomological Journal 28 (2), pp. 219-225 : 223

Shearia longa Mikhaljova, 2012

Fig. 14 .

Shearia longa Mikhaljova, 2012: 42 , 43–46: figs.

MATERIAL EXAMINED. 7 ♂♂, 2 ♀♀, Mongolia, Bayan-Ölgii Province (Aimag), Altai District (Somon), Tsengel Hayrhan Nuruu Mt. Range , 3 km W of Mt Elt Uul, 48º09´N; 89º14´E, screes, under stones, 2700 m a.s.l., 11.VII.2015, leg. A.A. Fomichev.

DISTRIBUTION. This species is known only from the Mongolian Altais, western Mongolia ( Fig. 14 ).

REMARKS.Originally described from the Tsengel Somon of the Bayan-Ölgii Aimag [see Mikhaljova, 2012], this species is now recorded from outside its terra typica for the first time.

The following key can be proposed to Shearia species.

1(4) Anterior angiocoxal processes of posterior gonopods with very large front branches and small outer ones ............ 2

2(3) Colpocoxites of posterior gonopods strongly curved caudad, with external lateral lobes ................................. .................................... shushenskaya Mikhaljova, 2000

3(2) Colpocoxites of posterior gonopods regularly curved caudad, without external lateral lobes ............................ .......................................... teletskaya Mikhaljova, 2000

4(1) Anterior angiocoxal processes of posterior gonopods small, both branches equal in height ........................... 5

5(6) Colpocoxite tips of posterior gonopods with subquadrate excavations ......................... rybalovi Mikhaljova, 2000

6(5) Colpocoxite tips of posterior gonopods different ..... 7

7(8) Front branches of anterior angiocoxal processes of posterior gonopods distinctly triangular in shape, with point- ed tips ( Fig. 17 ) ............................................ khakassica

8(7) Front branches of anterior angiocoxal processes of posterior gonopods different, without pointed tips .......... 9

9(12) Colpocoxites of posterior gonopods tapering distally, straight ........................................................................ 10

10(11) Anterior gonopod telopodites very long and twisted ............................................................................... longa

11(10) Anterior gonopod telopodites shorter, not twisted .. .......................................................................... calycina

12(13) Colpocoxites of posterior gonopods broad, concave .................................................................................... 13

13(14) Mesal sheath plate small ......................... densecava

14(13) Mesal sheath plate very large ................................... .............................................. oiskaya Mikhaljova, 2000

Figures

Fig. 14. Distribution of Shearia khakassica (circle) and S. longa (square). Previously known localities marked in black, new records given in white. Рис. 14. Распространение Shearia khakassica (круг) и S. longa (квадрат). Чёрным отмечены ранее иЗвестные места находок, новые находки отмечены белым.

Figs 15–20. Shearia khakassica, male (Republic of Altai, near Lak-Yyash Lakes): 15–18 — gonopods; 19 — coxae 10; 20 — coxae 11; 15, 17, 19–20 — oral view; 16, 18 — caudal view. Scale bars: 1 mm (15–18) and 0.4 mm (19–20). Designations explained in text. Рис. 15–20. Shearia khakassica, самец: 15–18 — гоноподы; 19 — коксы 10-й пары ног; 20 — коксы 11-й пары ног; 15, 17, 19– 20 — спереди; 16, 18 — сЗади. МасШтаб: 1 мм (15–18) и 0,4 мм (19–20). ОбЪЯснение обоЗначений дано в тексте.