Key to the Brazilian species of Charinus:

1 Median eyes absent.................................................................................... 2

- Median eye present.................................................................................... 3

2 Conical gonopods with an apical sucker-like prehensile structure; basitibia IV with four psudoarticles; distitibia IV with 16 trichobotria (BA: Carinhanha, Serra do Ramalho caves)............................................. C. troglobius

- Rounded, cushion-like gonopods with an apical sharp edge partially covering the atrium of the seminal receptacle; basitibia IV with three pseudoarticles; distitibia IV with 16 or 17 trichobotria (RO: Porto Velho).................... C. vulgaris sp. n.

3 Second and third sternal sclerites flattened and double wide as long (ES: Serra).......................... C. montanus

- Second and third sternal sclerites convex and more or less rounded.............................................. 4

4 Median eyes tubercle indistinct (MG: Itacarambi, Olhos d’Água Cave).................................. C. eleonorae

- Median eyes tubercle distinct (ES: São Domingos)........................................................... 5

5 Distitibia of leg IV with 16 trichobothria........................................................ C. brasilianus

- Distitibia IV with 18 trichoboria.......................................................................... 6

6 Frontal process of carapace weak (BA: Santa Luzia, Pedra do Sino Cave)................................. C. acaraje

- Frontal process of carapace strong, large and triangular........................................................ 7

7 Median eye tubercle high (SP: Ilhabela)............................................................ C. asturius

- Median eye tubercle low (BA: Gentil do Ouro, Encantados Cave)....................................... C. mysticus New records for Brazilian Charinus . Two juvenile specimens of Charinus were found in two Brazilian States: Charinus sp. 1 from Tocantins (Porto Nacional, Luzimangue) and Charinus sp. 2 from Ceará (Gruta Ubajara) (Fig. 13). They could not be identified at species level, but we will try to capture adult individuals in future expeditions.