Matta, Crosby, 1934

Brescovit, Antonio D. & Cizauskas, Igor, 2019, Seven new species of the spider genus Matta Crosby from caves in the State of Minas Gerais, Brazil (Araneae, Tetrablemmidae), Zootaxa 4559 (3), pp. 401-444 : 403

publication ID	https://doi.org/ 10.11646/zootaxa.4559.3.1
publication LSID	lsid:zoobank.org:pub:10CDA291-A32F-4954-9B80-E33579AF46E3
DOI	https://doi.org/10.5281/zenodo.5934731
persistent identifier	https://treatment.plazi.org/id/038887C8-E768-FF8F-FF0D-D656FA1F1827
treatment provided by	Plazi
scientific name	Matta
status

Treatment

Key to Brazilian species of Matta View in CoL

1. Eyes absent ( Fig. 20A View FIGURE 20 , 21C View FIGURE 21 )............................................................... M. humrrum View in CoL sp. n.

- Eyes present ( Fig. 1A View FIGURE 1 , 7A View FIGURE 7 ).............................................................................. 2

2. Normal eyes ( Fig. 1A, D View FIGURE 1 )............................................................................... 3

- Vestigial eyes (Fig. Fig. 7A, D View FIGURE 7 )........................................................................... 5

3. Carapace less elongated in the posterior region ( Fig. 2B View FIGURE 2 ).......................................... M. zuiuda View in CoL sp. n.

- Carapace most elongated in the posterior region ( Lehtinen, 1981, fig. 297)........................................ 4

4. Male: rugose ventral face of the palpal tibiae, long embolus; female with triangular DF ( Brescovit, 2005, figs 18-19, 21).......................................................................................... M. angelomachadoi View in CoL

- Male: smooth ventral face of the palpal tibiae, shorter embolus; female with conical DF ( Crosby, 1934, fig. 6; Lehtinen, 1981, fig. 310.................................................................................. M. hambletoni View in CoL

5. Separate vestigial eyes ( Fig. 7A View FIGURE 7 )......................................................................... 6

- Together vestigial eyes ( Fig. 23A, C View FIGURE 23 )...................................................................... 7

6. Male: retrolateral projection on leg I with four conspicuous setae in large sockets ( Fig. 7E View FIGURE 7 ̅F); female with oval dorsal fold of the uterus externus ( Fig. 6F View FIGURE 6 )............................................................... M. pititinha View in CoL sp. n.

- Male: retrolateral projection on leg I on a raised base, with four conspicuous setae in elevated sockets ( Fig 12A View FIGURE 12 ̅D); female with mushroom shape dorsal fold of the uterus externus ( Fig. 10F View FIGURE 10 )................................ M. humhum View in CoL sp. n.

7. Body slender and long legs in males and females ( Fig. 15A, D View FIGURE 15 )................................... M. cambito View in CoL sp. n.

- Body truncated and shorter legs in males and females ( Fig. 16A, D View FIGURE 16 ).............................................. 8

8. Male palp with laminar projection having enlarged base, forming a side flap ( Fig. 24C View FIGURE 24 ̅E); female with diamond piriform dor- sal fold of the uterus externus ( Fig. 22F View FIGURE 22 )...................................................... M. nuusga View in CoL sp. n.

- Male palp without laminar projection ( Fig. 28A View FIGURE 28 ̅H); female with sclerotized base of the dorsal fold of the uterus externus ( Fig. 26F View FIGURE 26 )..................................................................................... M. teteia View in CoL sp. n.