Key to Gaoligongshan Mysmenidae

1 Total length greater than 2mm; trichobothria on palpal tibia (Fig,. 55D); tarsal organ set distal to proximal margin of tarsus (tarsal organ position ca. 0.15, Fig. 55F)......................................... Maymena Gertsch, 1960 .......... 2

– Total length 1.5mm or less; palpal tibia without trichobothria; tarsal organ just beyond proximal margin of tarsus (tarsal organ position <0.1, Fig. 47F) ................................................................................................................... 3

2(1) Scape lateral margin notched, spermathecae separated by more than their width (Fig. 50 G-H) (male unknown) ....................... Maymena kehen sp. n.

– Scape lateral margin not notched, spermathecae separated by their width or less (Fig. 50F); male with elongate palpal tibia (Fig. 54A)............................. ............................................................................. Maymena paquini sp. n.

3(1) Distal part of cymbium notched; clypeus lacking macrosetae, copulatory ducts not coiled around the fertilization ducts or coiled around fertilization ducts no more than 5 times ........................................................................ 4

– Distal part of cymbium entire (Fig. 49B); clypeus of male with macrosetae (Fig. 52B), long copulatory ducts coiled around the fertilization ducts more than 10 times (Fig. 49C)............................................ Chanea suukyii sp. n.

4(3) Femoral spots absent. Male with two moderate to strong setae near the base of each chelicera (Figs 38A, 46D)......................... Gaoligonga gen. n. ........ 5

– Femoral spots present on femur I in both sexes. Macrosetae absent from male cheliceral bases............................................................................................ 6

5(4) Male with two strong macrosetae near the base of each chelicerae (Fig. 38A, 40 E-F); embolic tip tapered (Fig. 40C); with cymbial tooth (Fig. 40B). Female with well sclerotized ventral plate of the epigynum with ridges radiating out from a raised knob (Figs 41A, 43A), reniform spermathecae, and sinuous ducts.................................................................. Gaoligonga changya sp. n.

– Male with weak macrosetae near the base of each chelicerae (Fig. 44A), embolic tip expanded (Fig. 46B); cymbial tooth absent. Female epigynum and raised knob less strongly sclerotized, spermathecae not strongly differentiated from nearly longitudinal ducts; Figs 43 D-E, 47D)........................................ ............................................................................ Gaoligonga zhusun sp. n.

6(4) Male with four macrosetae on tibia I (Fig. 34F); female with spermathecae and spiraling copulatory ducts encapsulated together (Figs 31D, F, H-I)… ............... Simaoa gen. n. (male unknown in S. maku and S. bianjing) ....... 7

– Male tibia I with fewer than four macrosetae or lacking these altogether; female with spermathecae and copulatory ducts separate, not encapsulated together ....................................................................................................... 12

7(6) Males.......................................................................................................... 8

– Females....................................................................................................... 9

8(7) Palpal tibia long, with dorsal tooth-like apophysis (Fig. 34C); embolus makes a half turn (Fig. 33B) ................................................... Simaoa yaojia sp. n.

– Palpal tibia short, lacking dorsal tooth-like apophysis; embolus makes more than a full turn (Fig. 36A).................................... Simaoa kavanaugh sp. n.

9(7) Epigynum with two transverse lobes, a raised anterior lobe and a low posterior lobe along epigastric furrow (Figs 30D, 37F)...................................... 10

– Epigynum with small posteriorly projecting process, lacking a transverse anterior lobe (Fig. 31H) ............................................................................... 11

10(9) Copulatory ducts longitudinal (Fig. 31D); anterior lobe of epigynum narrow, fitting in the space between the spermathecae (Fig. 31C-D).......................... .................................................................................... Simaoa yaojia sp. n.

– Copulatory ducts oblique (Fig. 31F); anterior lobe of epigynum wider than distance between spermathecae (Fig. 31E) ........... Simaoa kavanaugh sp. n.

11(9) Abdomen lacking posterior tubercle; fertilization ducts run towards each oth- er after emerging from the copulatory duct spiral (Fig. 31H)........................ ..................................................................................... Simaoa maku sp. n.

– Abdomen with posterior tubercle; fertilization ducts run obliquely anteriorly (Fig. 31I) ................................................................. Simaoa bianjing sp. n.

12(6) Females..................................................................................................... 13

– Males ( Mysmena only; males of Mosu are unknown) ................................. 20

13(12) Vulva with round, sclerotized spermathecae with sclerotized fertilization ducts and the copulatory duct membranous and convoluted for most of its length, sclerotized at end of path near spermathecae (Fig. 43G, I)................. .................................................................................... Mosu gen. n. ........ 14

– Vulva not as above...................................... Mysmena Simon, 1894 ......... 15

14(13) Spermathecae bulbous (Fig. 43G), membranous copulatory ducts in contact in the posteromedial region (Fig. 43G), abdomen with posterior tubercle..... ..................................................................................... Mosu nujiang sp. n.

– Spermathecae transversely ovoid (Fig. 43I); membranous copulatory ducts separated (Fig. 31I); abdomen without posterior tubercle ..... Mosu huogou sp. n.

15(13) Epigynum with scape................................................................................ 16

– Epigynum lacking scape............................................................................ 18

16(15) Scape thicker basally than distally (Figs 18D, 21D.................................... 17

– Scape of more or less uniform from base to rounded tip, long, soft, wrinkled (Fig. 18B) .......................................................... Mysmena changouzi sp. n.

17(16) Epigynum a triangular scape, thick basally, evenly narrowed distally (Fig. 21D), tip with small posteriorly-directed process (Fig. 25F). Sclerotized portion of spermatheca/copulatory duct complexes separated by about 1.5 times their width (Fig. 21E) ................................................... Mysmena bizi sp. n.

– Epigynum a scape, base soft and wrinkled, projects ventrally, distal tip curves posteriorly (Fig. 18D). Sclerotized portion of spermatheca/copulatory duct complexes separated by nearly twice their width (Fig. 21C) .......................... ............................................................................... Mysmena jinlong sp. n.

18(15) Spermathecae simple and round to oval, distinct from lightly sclerotized copulatory ducts (Figs 21I, 31B) .................................................................... 19

– Vulva with a spermatheca/copulatory duct complex (Fig. 21G) .................... ............................................................................... Mysmena goudao sp. n.

19(18) Spermathecae separated by about 1.5 times their diameter, the path of the fertilization ducts J-shaped (Fig. 21I); posterior abdominal tubercle absent... ................................................................................ Mysmena haban sp. n.

– Spermathecae separated by nearly three times their diameter in, the path of the fertilization ducts sinuous (Fig. 31B); posterior abdominal tubercle present (Fig. 27F) .................................................... Mysmena shibali sp. n.

20(12) Clypeus convex......................................................................................... 21

– Clypeus with distinctive, nose-like process (Fig. 24E).... Mysmena bizi sp. n.

21(20) Cymbial groove studded with tubercles (Fig. 29B)... Mysmena goudao sp. n.

– Cymbial groove with folds (Fig. 17A) ................ Mysmena changouzi sp. n.