Cosmetidae

Coronato-Ribeiro, Amanda & Pinto-Da-Rocha, Ricardo, 2017, Taxonomic revision and cladistic analysis of the genus Metalibitia Roewer, 1912 (Opiliones, Cosmetidae, Cosmetinae), Zootaxa 4291 (2), pp. 201-242 : 238

Cosmetidae

2 (0) tubercle on paracheliceral median projection united 21 (0) pedipalpal femur with spaced tubercles

22 (0) pedipalpal tibia depressed

24 (0) pedipalpal tarsus with short setae

Platygyndes + Moselabius + Eulibitia + Fortalezius + Metavononoides + Roquettea 9 (2) opistosomal area I smooth

11 (1) opistosomal area II smooth

29 (2) trochanter IV dorsally unarmed

54 (2) penial ventral plate with two pairs of macrosetae B 60 (0) penial glans with dorsal process

Genus Metalibitia

23 (0) pedipalpal tibia base wider than apex

55 (0) straight macrosetae C on penial ventral plate 30 (0) penial ventral plate with lateral folded membranous extension 59 (1) penial glans inserted at median region of ventral plate

Metalibitia spp . (except M. adunca )

21 (0) dorsal pedipalpal tubercles contiguous

31 (1) trochanter IV with a group of projections 61 (1) pedipalpal femur with dorsal tubercles contiguous

Metalibitia brasiliensis + M. rosascostai + M. santaremis + M.abuna sp. nov. 2 (1) anterior margin of dorsal scutum with paracheliceralprojections 33 (2) trocanther IV with four-five retrolateral median projections 64 (0) penial stylus apex truncated

47 (2) trochanter IV with four–five median retrolateral tubercles

Metalibitia paraguayensis + M. borellii + M. tibialis + M.argentina 3 (2) prosoma densely covered with tubercles

32 (2) trochanter IV with two retrolateral apical tubercles 65 (1) penial stylus apex smooth

Metalibitia borellii + M. tibialis + M.argentina

16 (1) free tergite III with a median higher tubercle 46 (0) penial truncus apical region larger than ventral plate width 64 (2) penial stylus apex pointed

Metalibitia borellii + M. tibialis

5 (1) Ocularium with median depression

31(0) trochanter IV with single retrolateral projection 32 (1) trochanter IV with one retrolateral apical tubercle 33 (0) trocanther IV without retrolateral median projections 38 (0) femur IV with retrolateral apical apophyses 49 (1) penial ventral plate lateral margin narrowed medially