Ner Mongolia, China (419.532 N, 1194.589 E). Description of allotopotype male Adult male

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jurassica , holotype female CNU-ARA-NN2010008 opisthosoma and posterior legs: a photograph in low-angle light of dry specimen; see b for explanation; b L influence is expressed (as unobtrusively recorded), and this occurs quiteFrontiers explanatory drawing of a; three, 4, leg numbers; cx, coxa; fe, femur; mt, metatarsus; op, opisthosoma; pa, patella; st, sternum; ta, tarsus; ti, tibia; tr, trochanter; blue and red show left legs 3 and four, respectively, mirrored from preserved proper legs; dashed lines are inferred morphology; scale bar =5 mm; c SEM photograph of a lot of leg setae, showing infill of smooth, translucent (crystalline) material, exactly where broken away reveals external pattern of short barbs, as inside the male; scale bar =10 mand tibia (Fig. Opisthosoma cylindrical with rounded anterior and posterior. Wide, oval field of fine setae (Fig. 2e; Electronic supplementary material Fig. 2c) situated c. 2/3 of length of opisthosoma from anterior, anterior lateral spinnerets posterior to this field, smaller posterior lateral spinnerets. Measurements (millimeters): physique length 16.54; carapace length six.74, width 5.05; opisthosoma length 10.86, width five.42, length/width ratio 2.00; cribellar region width 1.97; sternum length 2.55, width 2.31, length/width ratio 1.ten; labium length 1.58, W 1.18, length/width ratio 1.34; maxilla length 1.77, width 0.94, length/width ratio 1.88; leg formula (longest to shortest): 1243; podomere lengths: pedipalp femur 4.05, patella 1.24, tibia 3.79, tarsus 1.68, total (fe i) 9.08, total (fe a) 10.76; leg 1 coxa 1.74, trochanter 0.85, femur 15.10, patella two.99, tibia 15.96, metatarsus 19.00, tarsus five.35, total (fe i) 34.05, total (fe a) 58.16; leg two coxa 1.84, trochanter 0.69, femur 11.46 patella 2.67, tibia ten.Ner Mongolia, China (419.532 N, 1194.589 E). Description of allotopotype male Adult male: cuticular structures: setae and macrosetae finely plumose (Fig. 2g, h), no feathery setae (Fig. 2a); quick trichobothria in large cluster (>30, fewer on Pd) in basal half of all tibiae, bothria asymmetric: thicker, crescentic rim proximally which thins distally (Fig. 2b); finely plumose macrosetae (Fig. 2a) on all post-trochanteral podomeres, numerous and big on dorsal surfaces, except femora, where shorter, thinner, sparse on ventral surfaces, except metatarsus three which has dense macrosetation in distal half. Carapace pyriform, curved lateral sides, tapering forwards, extra rounded posterolaterally. Eyes poorly preserved. Labium tongue-shaped, straight posterior border, lateral sides curve to meet anteriorly, longer than wide. Sternum shieldshaped, scalloped laterally, pointed posteriorly but not made among coxae 4. Chelicera short, not porrect, subtriangular in lateral aspect. Pedipalp with elongated femurFig. 4 M. jurassica , holotype female CNU-ARA-NN2010008 opisthosoma and posterior legs: a photograph in low-angle light of dry specimen; see b for explanation; b explanatory drawing of a; 3, 4, leg numbers; cx, coxa; fe, femur; mt, metatarsus; op, opisthosoma; pa, patella; st, sternum; ta, tarsus; ti, tibia; tr, trochanter; blue and red show left legs 3 and four, respectively, mirrored from preserved right legs; dashed lines are inferred morphology; scale bar =5 mm; c SEM photograph of many leg setae, showing infill of smooth, translucent (crystalline) material, exactly where broken away reveals external pattern of short barbs, as inside the male; scale bar =10 mand tibia (Fig.