Key to American species of Salina with square mucro

1 Body pigments pattern with transverse or longitudinal bands (Figures 9C, J) … 2

– Body pigments with varied pattern, reduced or absent, without clear bands ....... 5

2 Body with longitudinal bands (Figure 9C) …………………………………… 3

– Body with transverse bands (Figure 9J) ………………………………………… …………………… S. dedoris Mari-Mutt, 1987a; Brazil (new record), Colombia

3 Body with two lateral longitudinal bands in midline (Figure 9C) …………… 4

– Body with one longitudinal band in midline ………………………………..… ……………………………………………… S. trilobata (Schött 1896); Mexico

4 Ant I with 6 dorsal mac; Th II–Abd I formula 8, 6, 2 central mac; mucro with 3 teeth (Figure 19H) …………………………………………………………………… ……………………………………………… S. banksi MacGillivray 1894; USA

– Ant I with 4 dorsal mac (Fig 10C); Th II–Abd I formula 1, 2, 2 central mac (Figures 12C, 13C); mucro with 4 teeth (Figure 19G) …………………………… ……………………………………………………… S. bicolor sp.n.; Colombia

5 Ant I with7or more dorsal mac(Figures10D,G);Abd IV with10or more central mac (Figures 14 E–F) ……………………………………………………………… 6

– Ant I with 5 or less dorsal mac (Figures 10 A–C, E–F, H–I); Abd IV with 7–8 central mac (Figures 14D, G–I) ……………………………………………………… 7

6 Ant I with 9 dorsal mac (Fig 10D); Th III with 3 central mac (Figure 12D); Abd IV with 10 central mac (Figure 14E) …………………………………………… ………………………………………………………… S. hamadae sp.n.; Brazil

– Ant I with7dorsal mac(Fig10G);Th III with2central mac(Figure12G);Abd IV with 11–12 central mac (Figure 14F) ……………………………………………… …………………………………………………………… S. serrana sp.n.; Brazil

7 Th II with 1 dorsal mac (Figures 12A, C, F, G, I) ……………………………. 8

– Th II with 2 or more dorsal mac (Figures 12B, E, H) ………………………… 11

8 Ant I with 3 dorsal mac (Figures 10F, I); Th III–Abd I with 1, 1 central mac (p3) (Figures 12F, I) …………………………………………………………………… 9

– Ant I with 4 dorsal mac (Figure 10A); Th III–Abd I with 2 or more central mac, respectively (p1–3) (Figure 12A) …………………………………………… 10

9 Abd IV with 7 central and 9 lateral mac (Figure 14I); collophore with 1 posterior chaeta, lateral flap with 12 chaetae (Figure 18C) ……………….………… …………………………………………………………… S. peruana sp.n.; Peru

– Abd IV with 8 central and 10 lateral mac (Figure 14D); collophore with 2 posterior chaetae, lateral flap with 15 chaetae (Figure 18G) …………… ………………………………………………………… S. unisetosa sp.n.; Brazil

10 Th III p1 mac absent (Figure 12A) …………………… S. brasiliana sp.n.; Brazil

– Th III with p1 mac ……………………… S. panamae Jacquemart, 1982; Panama

11 Ant I with 4 or less dorsal mac; Abd IV without penis-shaped spot (Figures 9B, H, 10B, H) …………………………………………………………………… 12

– Ant I with 5 dorsal mac; Abd IV with one penis-shaped spot in dorsal view (Figures 9E, 10E) ……………………………………………………………… ……………………………………………………… S. maculipenis sp.n.; Brazil

12 Trochanteral organ with 12–13 smooth spine-like chaetae (Figures 16B, H) … 13

– Trochanteralorganwith17smoothspine-likechaetae……………………………… ………………………………...……… S. zhangi Bellini & Cipola, 2017; Brazil

13 Th II with 2–5 dorsal mac (Figures 12B, H); Abd IV with 10 lateral mac (Figure 14D); mucro with 3–4 teeth (Figures 19 D–I) ……………………………… 14

– Th II with 6 or more dorsal mac; Abd IV with 7 lateral mac; mucro with 4 teeth (Figures 19 D–E, G) ………………………………………………………… 15

14 Th III with 5–9 dorsal mac (Figure 12B); Abd I often with 3 dorsal mac (Figure 13B); collophore lateral flap with 10 chaetae (Figure 17D) ……………… …………………………………………………………… S. bellinii sp.n.; Brazil

– Th III with 3–6 dorsal mac (Figure 12H); Abd I often with 1 or 2 dorsal mac (Figure 13H); collophore lateral flap with 13 chaetae (Figure 18G) ……………………… ……………………………………………………... S. tocantinensis sp.n.; Brazil

15 Collophore posteriorly with2or less chaetae……………………………………… ……………………………………… S. hermana Mari-Mutt, 1987a; Colombia

– Collophore posteriorly with 4–5 chaetae ………………………………………… …………… S. tristani Denis 1931; Puerto Rico, Costa Rica, Brazil (new record)