Key to Gaoligongshan Theridiosomatidae

1 Females ....................................................................................................... 2

Males.......................................................................................................... 9

2(1) Abdomen subtriangular, tapered posteriorly (Fig. 8B). Spermathecae separated by nearly their diameter (Fig. 11F)... Coddingtonia euryopoides sp. n.

– Abdomen subspherical, not distinctly tapered posteriorly. Spermathecae juxtaposed (Fig. 3D)........................................................................................ 3

3(2) Scape protrudes from beneath epigynal plate (Figs 11C, 14C)...................... ............................................................................. Wendilgarda muji sp. n.

– Scape absent (Fig. 11A) or if present (Fig. 3E) then a simple extension of the epigynal plate.............................................................................................. 4

4(3) Posterior median eyes separated by at least their diameter (Fig. 4C).............. ..................................................................... Ogulnius barbandrewsi sp. n.

– Posterior median eyes separated by less than their diameter......................... 5

5(4) Epigynum subtriangular, pointed posteriorly with concave margins so medial part is more acute than lateral part (Fig. 3E)......... Baalzebub nemesis sp. n.

– Epigynum otherwise, typically subrectangular (Fig. 11A)............................ 6

6(5) Epigynum with a deep atrium, height of opening about one third the width in posterior view (Fig. 3B), without fleshy tissue at posterior margin of epigynum. Lateral pits absent....................................... Epeirotypus dalong sp. n.

– Atrium absent (Fig. 3F) or slit-like (Fig. 13A), height of opening (if visible) much less than one third the width in posterior view. Region between posterior margin of epigynum and abdomen often with fleshy tissue (Fig. 3F). Lateral pits present (Fig. 9B) ....................................................................... 7

7(6) Epigynum with pair of processes arising from posterolateral margin running towards each other (Fig. 3H) ........................ Theridiosoma shuangbi sp. n.

– Epigynum without pair of processes arising from posterolateral margin ...... 8

8(7) Posterior margin of epigynum with median longitudinal slit (Figs 3F, 9A). Abdomen tan with dark gray with silver patches ........................................... ........................................................................ Theridiosoma diwang sp. n.

– Posterior margin of epigynum entire (Fig. 11A). Abdomen dark gray with silver patches forming curved transverse stripe (Fig. l0A) .............................. ................................................................................... Zoma dibaiyin sp. n.

9(1) With long, filliform embolic apophysis (Figs 4G, 14A)............................. 10

– Embolic apophysis absent (Fig. 2C)..................... Epeirotypus dalong sp. n.

10(9) Posterior median eyes separated by about their diameter............................... ..................................................................... Ogulnius barbandrewsi sp. n.

– Posterior median eyes separated by less than half their diameter................ 11

11(10) Palpal tibia with one trichobothrium. Median apophysis sclerotized with concave dorsal margin (Fig. 12E).......................... Wendilgarda muji sp. n.

– Palpal tibia with two trichobothria. Median apophysis fleshy, with pointed dorsal apex (Fig. 10D) ................................................ Zoma dibaiyin sp. n.