Key to the Brazilian species of Charinus (adapted from Miranda & Giupponi (2011) and Giupponi & Miranda (2016))

List of the described Brazilian species of Charinus: C. brasilianus Weygoldt, 1972; C. montanus Weygoldt, 1972; C. asturius Pinto-da-Rocha, Machado & Weygoldt, 2002; C. acaraje Pinto-da-Rocha, Machado & Weygoldt, 2002; C. mysticus Giupponi & Kury, 2002; C. troglobius Baptista & Giupponi, 2002; C. eleonorae Baptista & Giupponi, 2003; C. vulgaris Miranda & Giupponi, 2011; C. potiguar Vasconcelos, Giupponi & Ferreira, 2013; C. jibaossu Vasconcelos, Giupponi & Ferreira, 2014; C. caatingae Vasconcelos & Ferreira, 2016; C. iuiu Vasconcelos & Ferreira, 2016; C. brescoviti Giupponi & Miranda, 2016; C. ricardoi Giupponi & Miranda, 2016; C. bonaldoi Giupponi & Miranda, 2016; C. guto Giupponi & Miranda, 2016; C. carajas Giupponi & Miranda, 2016; C. orientalis Giupponi & Miranda, 2016; C. ferreus Giupponi & Miranda, 2016; C. bichuetteae Giupponi & Miranda, 2016; C. taboa Vasconcelos, Giupponi & Ferreira, 2016; and C. ruschii Miranda et al. 2016. C. schirchii (Mello- Leitão, 1931) is presently a species inquirenda, so it is not considered in the identification key and distribution map (Fig. 31) (Pinto-da-Rocha et al. 2002).

1 Basitibia of leg IV divided in 2 or 3 pseudoarticles; cushion-like female gonopods..................................2

- Basitibia of leg IV divided in 4 pseudoarticles; sucker-like female gonopods.....................................10

2 Median eyes present...................................................................................3

- Median eyes absent................................................................................... 5

3 Basitibia of leg IV divided in 2 pseudoarticles..................................................... C. brescoviti

- Basitibia of leg IV divided in 3 pseudoarticles...............................................................4

4 Femur of the pedipalp with 4 dorsal spines; leg IV with trichobothrium bc closer to sbf than to bf............... C. carajas

- Femur of the pedipalp with 3 dorsal spines; leg IV with trichobothrium bc equidistant to sbf and bf.......... C. orientalis

5 Basitibia of leg IV divided in 2 pseudoarticles...............................................................6

- Basitibia of leg IV divided in 3 pseudoarticles.............................................................. 8

6. Leg IV with trichobothrium bc equidistant to sbf and bf............................................... C. ricardoi

- Leg IV with trichobothrium bc closer to sbf than to bf........................................................7

7 Lateral eyes developed; femur of the pedipalp with 2 dorsal and 2 ventral spines........................ C. bichuetteae

- Lateral eyes slightly reduced; femur of the pedipalp with 3 dorsal and 3 ventral spines...................... C. bonaldoi

8 Lateral eyes developed; distitibia of leg IV with 11 distal trichobothria....................................... C. guto

- Lateral eyes reduced; distitibia of leg IV with 13 distal trichobothria..............................................9

9 Femur of pedipalp with 3 ventral spines; cuticle thin................................................... C. ferreus

- Femur of pedipalp with 2 ventral spines; cuticle well-sclerotized....................................... C. vulgaris

10 Median eyes absent.......................................................................... C. troglobius

- Median eyes present................................................................................. 11

11 Tetrasternum and pentasternum wider than long............................................................12

- Tetrasternum and pentasternum rounded..................................................................13

12 Median eyes developed; distitibia of leg IV with 15 distal trichobothria.................................. C. montanus

- Median eyes reduced; distitibia of leg IV with 13 distal trichobothria................................ C. spelaeus sp. n.

13 Distitibia of leg IV with 13 distal trichobothria............................................................. 14

- Distitibia of leg IV with 15 distal trichobothria............................................................. 15

14 Lateral and median eyes developed with high tubercle.............................................. C. brasilianus

- Lateral and median eyes reduced with low tubercle.................................................... C. taboa

15 Median eyes tubercle indistinct................................................................. C. eleonorae

- Median eyes tubercle distinct...........................................................................16

16 Patella of the pedipalp with 2 ventral spines............................................................... 17

- Patella of the pedipalp with 3 or more ventral spines....................................................... 18

17 Lateral eyes with pigmentation................................................................... C. acaraje

- Lateral eyes without pigmentation............................................................... C. potiguar

18 Distitarsus of the pedipalp with 3 spines (at least in males)................................................... 19

- Distitarsus of the pedipalp with 2 spines.................................................................. 22

19 Lateral eyes reduced.......................................................................... C. caatingae

- Lateral eyes developed................................................................................ 20

20 Patella of the pedipalp with 3 ventral spines......................................................... C. jibaossu

- Patella of the pedipalp with 4 or more ventral spines....................................................... 21

21 Frontal process with acute apex................................................................... C. ruschii

- Frontal process with thickened apex............................................................... C. mysticus

22 Chelicera claw with 8 denticles; pedipalps densely setose................................................. C. iuiu

- Chelicera claw with 10 denticles; pedipalps moderately setose.................................................23

23 Trichobothrium positioned medially on the last pseudoarticle of basitibia IV............................. .. C. asturius

- Trichobothrium positioned proximally on the last pseudoarticle of basitibia IV..................... C. santanensis sp. n.