Salina hamadae, Oliveira¹ & Cipola² & Almeida¹, 2020

Oliveira, Fábio G. L., Cipola, Nikolas G. & Almeida, Eduardo A. B., 2020, Systematics and biogeography of Salina MacGillivray (Collembola: Entomobryoidea), with emphasis on the species groups in the New World, Insect Systematics & Evolution 51, pp. 81-138 : 113-116

Salina hamadae sp.n. Oliveira & Cipola

Figures 9D , 10D , 11D , 12D , 13D , 14B and E , 15D , 16D , 17 F-G, 19F

ZooBank: http://zoobank.org/ B66CF554-2D4D-4F87-BE10-1430A66EE8B3

Diagnosis

Body and legs with blue spots; Ant I with 9 mac; cephalic groove only with ciliate chaetae; Th II–Abd I with 1–2, 3, 2 central mac, respectively; Abd III with 3 lateral mac (am6, pm6, p6); Abd IV with 10 central mac (A3 and A4 present, A3p and A5 absent) and 9 lateral mac; collophore with 8 anterior, 5 posterior and 12 lateral flap chaetae; trochanteral organ with 16 spine-like chaetae; manubrial plate with 3 chaetae.

Type material

Holotype ♀ on slide (COLLE 044/INPA): Brazil, Santa Catarina, Urubici municipality, Private Reserve of Natural Patrimony (RPPN), “Portal das Nascentes”, 28°03’02”S; 49°22’44”W, Atlantic Forest , 1020 m, 18.viii.2013, Pitfall-trap, JMC Nascimento & N Hamada coll. Paratypes on slides (COLLE 044A-W/INPA): 2 ♂ and 21 ♀ and 14 in alcohol, same data as holotype .

Description

Total length (head + trunk) of holotype 2.51 mm. Specimens pale white with blue pigments on Ant I–IV, slightly on anterior head, intersegmental areas of antennae and legs; lateral of Th II to Abd IV; presence of irregular spots from Abd III – IV; Eyepatches black ( Figure 9D ).

Head. Ant I dorsally with 9 mac and 4 basal spiny smooth mic ( Fig 10D ). Posterior labial chaetotaxy series ‘CG’ with 11 ciliate chaetae (CG1–7e); series ‘PLM’ with 1 ciliated chaetae (PLM1); series ‘PLE’ with 3 ciliate chaetae (PLE1–3); lateral side with about 17 ciliate chaetae ( Figure 11D ).

Dorsal chaetotaxy. Th II with 1 ‘m’ mac (m7); 1–2 ‘p’ mac (p1a, p2), p2 present or absent. Th III with 1 ‘a’ mac (a7?); 1 ‘m’ mac (m7); 3 ‘p’ mac (p1i, p2–3) ( Figure 12D ). Abd I with 2 ‘m’ mac (m3, m4) ( Figure 13D ). Abd III with 2 ‘m’ mac (am6, pm6); 1 ‘p’ mac (p6) ( Figure 14B ); Abd IV with 4 ‘A’ mac (A1, A3, A4, A6); 1 ‘Ae’ mac (Ae1); 3 ‘B’ mac (B3–5); 1 ‘Be’ mac (Be1); 1 ‘C’ mac (C1); 3 ‘E’ mac (E1, E2, E4); 3 ‘F’ mac (F1–F3); 3 ‘Fe’ mac (Fe1–2, Fe6); posterior side with 3 sens type IV (ps and two unnamed) ( Figure 14E ). Abd V with 3 ‘a’ mac (a0, a3, a5); 3 ‘m’ mac (m2–3, m5); and 5 ‘p’ mac (p1–5) ( Figure 15D ).

Appendages. Trochanteral organ with 16 smooth spine-like chaetae ( Figure 16D ). Collophore anterior side with 4 subapical mac of equal length, and 4 proximal smooth mic; posterior side with 1 apical ciliated mic and 4 subapical smooth chaetae; lateral flap formula 4(s), 4(m), 4(i) smooth chaetae ( Figures 17 F-G). Manubrial plate with 3 chaetae ( Figure 19C ). Mucro with 3 teeth (d1, ap, v1) ( Figure 19F ).

Etymology

The epithet honors our entomologist and friend Dr. Neusa Hamada, collector of the specimens.

Remarks

Salina hamadae sp.n. resembles S. serrana sp.n. by body and legs with blue spots, Ant I with more than 6 mac, Abd I with 2 central mac, Abd IV with at least 10 central mac, and mucro with 4 teeth. However, S. hamadae sp.n. differs of S. serrana sp.n. in chaetotaxy of the Th II–III with p1a and p1i mac, respectively (both absent in S. serrana sp.n.), Abd III with 3 lateral mac next to m5 bothriotrichum (2 in S. serrana sp.n.), and Abd IV devoid of A3p and A5 mac (present in S. serrana sp.n.)

Salina hamadae sp.n. also differs by Ant I with 9 mac (7 in S. serrana sp.n.), trochanteral organ with 16 spine-like chaetae (13 in S. serrana sp.n.), manubrial plate with 3 chaetae (2 in S. serrana sp.n.), and collophore with 8 anterior chaetae (4 mac) and 12 chaetae in three rows on lateral flap, while S. serrana sp.n. has 13 anterior chaetae (3 mac) and lateral flap with 20 chaetae in 4 rows. For additional information, refer to Table 2 .

Figures

Fig. 9. Habitus of Salina spp. (dorsal view): (A), Salina brasiliana sp.n.; (B), S. bellinii sp.n.; (C), S. bicolor sp.n.; (D), S. hamadae sp.n.; (E), S. maculipenis sp.n.; (F), S. peruana sp.n.; (G), S. serrana sp.n.; (H), S. tocantinensis sp.n. (distal half of Ant IV missing); (I), S. unisetosa sp.n.; (J), S. dedoris from Roraima state, Brazil; (K), S. tristani from Amazonas state, Brazil. Scale bars: 0.5 mm.

Fig. 10. Head structures of Salina spp.: (A–I), Ant I dorsal chaetotaxy (right): (A), Salina brasiliana sp.n.; (B), S. bellinii sp.n.; (C), S. bicolor sp.n.; (D), S. hamadae sp.n.; (E), S. maculipenis sp.n.; (F), S. peruana sp.n.; (G), S. serrana sp.n.; (H), S. tocantinensis sp.n.; (I), S. unisetosa sp.n., arrow indicates mac present or absent. (J–K), general structures of anterior and ventral head: (J), labral papillae, prelabral and labral chaetotaxy; (K), maxillary outer lobe and sublobal plate; (L), labial palp and proximal chaetae; (M), labial basolateral and basomedian fields.

Fig. 11. Head ventral chaetotaxy of Salina spp.: (A), Salina brasiliana sp.n.; (B), S. bellinii sp.n.; (C), S. bicolor sp.n.; (D), S. hamadae sp.n.; (E), S. maculipenis sp.n.; (F), S. peruana sp.n.; (G), S. serrana sp.n.; (H), S. tocantinensis sp.n.; (I), S. unisetosa sp.n.

Fig. 12. Th II–III dorsal chaetotaxy of Salina spp.: (A), Salina brasiliana sp.n.; (B), S. bellinii sp.n.; (C), S. bicolor sp.n.; (D), S. hamadae sp.n.; (E), S. maculipenis sp.n.; (F), S. peruana sp.n.; (G), S. serrana sp.n.; (H), S. tocantinensis sp.n.; (I), S. unisetosa sp.n.

Fig. 13. Abd I dorsal chaetotaxy of Salina spp.: (A), Salina brasiliana sp.n.; (B), S. bellinii sp.n.; (C), S. bicolor sp.n.; (D), S. hamadae sp.n.; (E), S. maculipenis sp.n.; (F), S. peruana sp.n.; (G), S. serrana sp.n.; (H), S. tocantinensis sp.n.; (I), S. unisetosa sp.n.

Fig. 14. Abd III–IV dorsal chaetotaxy of Salina spp.: (A–C), Abd III: (A), Salina brasiliana sp.n.; (B), S. hamadae sp.n.; (C), S. serrana sp.n. (D–I), Abd IV: (D), S. brasiliana sp.n.; (E), S. hamadae sp.n.; (F), S. serrana sp.n.; (G), S. bicolor sp.n.; (H), S. maculipenis sp.n.; (I), S. peruana sp.n.

Fig. 15. Abd V dorsal chaetotaxy of Salina spp.: (A), Salina brasiliana sp.n.; (B), S. bellinii sp.n.; (C), S. bicolor sp.n.; (D), S. hamadae sp.n.; (E), S. maculipenis sp.n.; (F), S. serrana sp.n.; (G), S. tocantinensis sp.n.

Fig. 16. Legs structures of Salina spp.: (A–I), trochanteral organ (right): (A), Salina brasiliana sp.n.; (B), S. bellinii sp.n.; (C), S. bicolor sp.n.; (D), S. hamadae sp.n.; (E), S. maculipenis sp.n.; (F), S. peruana sp.n.; (G), S. serrana sp.n.; (H), S. tocantinensis sp.n.; (I), S. unisetosa sp.n. (J–K), distal tibiotarsus and foot complex (posterior side): (J), fore leg; (K), hind leg.

Fig. 17. Collophore chaetotaxy of Salina spp.: (A–B), Salina brasiliana sp.n.: (A), anterior side; (B), lateral and posterior side. (C–D), S. bellinii sp.n.: (C), anterior side; (D), lateral and posterior side. (E), complete chaetotaxy (lateral view) of S. bicolor sp.n. (F–G), S. hamadae sp.n.: (F), anterior side; (G), lateral and posterior side.

Fig. 19. Genital plate and furcula of Salina spp.: (A–B), Genital plate of Salina serrana sp.n. (ventral view): (A), ♂; (B), ♀. (C), Distal manubrium and proximal dens of S. brasiliana sp.n. (lateral view), arrow indicates chaeta absent in manubrial plate of some species. (D–I), distal dens and mucro (inner view):(D), S. brasiliana sp.n.; (E), S. bellinii sp.n.; (F), S. hamadae sp.n.; (G), S. maculipenis sp.n.; (H), S. peruana sp.n.; (I), S. serrana sp.n.