MALES (THE MALES OF MOST SPECIES OF LINOTHELE KARSCH, 1879 REMAIN UNKNOWN)

1. Specimen overall black; embolus curved, without keel; see Dupérré & Tapia (2015: fig. 28) ........................... ....................................................................................................................................................................... L. yanachanka Dupérré & Tapia, 2015

— Colouration different (e.g. Fig. 17B, I); embolus not curved (Figs 6A, B; 7A, B; 16A, B), or with keel; see Paz & Raven (1990: fig. 8) .................................................................................................................................... 2

2. Appendages with distinct maculae ................................................................ L. quori Dupérré & Tapia, 2015

— Appendages more or less unicolour ............................................................................................................. 3

3. Apical segments of the PLS flexible .............................................................................................................. 4

— Apical segments of the PLS rigid ................................................................................................................. 5

4. Embolus with distinct keel; see Paz & Raven (1990: fig. 8) .................................... L. sericata (Karsch, 1879)

— Embolus without distinct keel (Fig. 6A, B) ........................................................... L. curvitarsis Karsch, 1879

5. Dorsal pattern on opisthosoma consisting only of complete chevrons ......................................................... 6

— Dorsal pattern on opisthosoma with mid-dorsal dots connecting to lines .............................. L. spinosa n. sp.

6. Leg formula 1423; megaspine curved; MP [(IML*100)/MAD = 442], domed at apex (Fig. 9C, D) ............... ...................................................................................................... L. jelskii (F. O. Pickard-Cambridge, 1896)

— Leg formula 4123; megaspine almost straight; MP [(IML*100)/MAD = 483], v-shaped at apex (Fig. 7C, D) ........................................................................................................................ L. fallax (Mello-Leitão, 1926)