Seira paraibensis Bellini & Zeppelini, 2009

Godeiro, Nerivânia N. & Bellini, Bruno C., 2015, Two new species and two detailed chaetotaxy descriptions of Seira (Collembola: Entomobryidae) from Brazil, Zootaxa 3972 (2), pp. 208-230 : 221-225

Seira paraibensis Bellini & Zeppelini, 2009 detailed dorsal chaetotaxy

Figs 11–13

Analyzed material. Paratype, one female, Brazil, Paraíba, Areia 11–12.xi. 2008. Bellini, B.C. and Zeppelini, D. col. Material deposited at Collembola Collection of DBEZ / UFRN. Other material: five females and three males, Brazil, Paraíba, Areia 24–27.xi. 2011. Bellini, B.C. col. Material deposited at Collembola Collection of DBEZ / UFRN.

Dorsal head chaetotaxy. ‘An’ series with 9 + 9 macrosetae; one super-numerary microseta between An 3 a and An 3; ‘A’ series with A 4 present; A0, A 2, A 3 and A 5 as macrosetae; A 1 and A 4 as microsetae; ‘M’ series with 5 + 5 setae; M 1, M 2 and M 4 as macrosetae; M 3 and M 4 i as microsetae; ‘S’ series with 7 + 7 macrosetae ( S 1, S 2, S 3, S 4, S 5, S 5 i, S 6) plus the umpaired S0; Interocular series with 5 + 5 microsetae ( p, q, r, s, t); ‘Ps’ series with 3 + 3 microsetae; Ps 4 absent (typical of Seira , see Soto-Adames 2008); ‘Pa’ series with 6 + 6 setae; Pa 1, Pa 2, Pa 3 and Pa 4 as microsetae, Pa 5 as macroseta, Pa 6 as post ocular trichobothrium; ‘Pm’ series with 2 + 2 microseta ( Pm 1 and Pm 3), Pm 2 absent (typical of Seira , see Soto-Adames 2008); ‘Pp’ series with 5 + 5 microsetae ( Pp 1, Pp 2, Pp 3, Pp 4, Pp 5); ( Fig. 11 ).

Dorsal Th. II chaetotaxy. ‘a’ series (without anterior setal collar) with 7 + 7 or 6 + 6 setae; a 2 p as microseta; a 5 i 2, a 5 i 2 p, a 5 ip, a 5 i, a 5, a 5 p as macrosetae, a 5 can be absent in some specimens; ‘m’ series with 13 + 13 setae; m 1 i 3, m 4 ip, m 5 and m 5 p as microsetae; m 1 i 2, m 1 i, m 2 i, m 2 i 2, m 1, m 2, m 4 p, m 4 i and m 4 as macrosetae; one super-numerary macroseta can be present or absent next to m 4 p; m 5 a absent; ‘p’ series with 17 + 17 setae; p 2 p absent; p 1 i 2 p, p 1 i 2, p 1, p 1 ip, p 1 p, p 2 a, p 2, p 2 e, p 2 ep, p 3 p and p 3 as macrosetae; p 1 i, p 2 ea, p 4, p 5, p 6 and p 6 e as microsetae ( Fig. 12 A).

Dorsal Th. III chaetotaxy. ‘a’ series with 8 + 8 setae; a 1 a, a 3, a 4, a 5 and a 7 as microsetae; a 1, a 2 and a 6 as macrosetae; ‘m’ series with 6 + 6 or 5 + 5 setae; m 6 p absent; m 6 as macroseta; m 1 i, m 1, m 4, m 5 and m 7 as microsetae, m 1 can be absent in some specimens; ‘p’ series with 10 + 10 or 9 + 9 setae; p 2 ea, p 4, p 5 and p 6 as microsetae; p 1 i, p 1, p 2, p 2 a, p 3 and p 2 e as macrosetae; p 1 i may be absent in some specimens; setula present near m 7 ( Fig. 12 B).

Dorsal Abd. I chaetotaxy. ‘a’ series with 5 + 5 microsetae ( a 1, a 2, a 3, a 5 and a 6); a 1 a, a 1 e and a 4 absent; setula present near a 6; ‘m’ series with 6 + 6 setae; m 4, m 5 and m 6 as microsetae; m 2, m 3 and m 4 i as macrosetae; ‘p’ series with 2 + 2 microsetae ( p 5 and p 6) ( Fig. 12 C).

Dorsal Abd. II chaetotaxy. ‘a’ series with 7 + 7 setae; a 2 p as fan shaped scale; a 3, as, a 6 and a 7 as microsetae; a 2 as macrosetae; a 5 as trichobothrium with 5 surrounding fan shaped scales; ‘m’ series with 8 + 8 setae; m 3 ep absent; m 3 ei, m 3 ea, m 6 and m 7 as microsetae; m 3, m 3 e and m 5 as macrosetae; m 2 as trichobothrium with 5 surrounding fan shaped scales; ‘p’ series with 3 + 3 setae; p 5 and p 7 as microsetae; p 6 as mesoseta; el and se present as setulae ( Fig. 12 D).

Dorsal Abd. III chaetotaxy. ‘a’ series with 8 + 8 setae; as and a 3 as microsetae; am 6 as macroseta; a 7 as mesoseta; a 1, a 2 and a 6 as fan shaped scales; a 5 as trichobothrium with 6 surrounding fan shaped scales; ‘m’ series with 6 + 6 setae; m 2 as trichobothrium with 5 surrounding fan shaped scales; m 5 as trichobothrium with 5 surrounding fan shaped; m 4 and m 3 ea as fan shaped scales; m 7 as microseta; m 3 as macroseta; ‘p’ series with 6 + 6 setae; p 3 as fan shaped scale; p 5 and p 7 as microsetae; p 7 i as mesoseta; pm 6 and p 6 as macrosetae; em, emp and c 3 as fan shaped scales; se as setula; d 2 setula present, near p 5 ( Fig. 13 A).

Dorsal Abd. IV chaetotaxy. ‘A’ series with 8 + 8 setae; A 2 a absent; A 1, A 2 and Ae 7 as microsetae; A 3 a, A 3, A 4, A 5 and A 6 as macrosetae; in some specimens A 6 can be a microseta; ‘B’ series with 6 + 6 setae; B 1, B 2 and B 4 as macrosetae; B 3, B 5 and B 6 as macrosetae; one super-numerary macroseta between B 4 and B 5; one supernumerary microseta next to B 6; Be 3 as macroseta and Be 2 absent; ‘C’ series with 5 + 5 setae; C 1 p absent; C 1 and C 4 as macrosetae; C 2, C 3 and C 4 a as microsetae; ‘T’ series with 7 + 7 setae; T 1 and T 7 as macrosetae; T 3, T 5 and T 6 as microsetae; T 2 and T 4 as trichobothria with 6 and 3 (respectively) fan shaped scales above each of them; ps present as setula next to T 7; ‘D’ series with 5 + 5 setae; D 1 as fan shaped scale; D 2 a, D 2 and D 3 p as microsetae; D 3 as trichobothria without fan shaped scales associated; ‘E’ series with 6 + 6 setae; E 3 and E 2 a absent; E 2, E 2 p, E 4 and E 4 p as macrosetae; E 1 and E 4 p 2 as microsetae; Ee 7 and Ee 10 absent; ‘F’ series with 4 + 4 macrosetae; F 2 p and F 3 p absent; ‘Fe’ series with 4 + 4 macrosetae; Fe 2 and Fe 2 p absent; Abd. IV with 5 + 5 posterior setae ( Fig. 13 B).

Distribution of dorsal macrosetae of whole body as in Figure 13 C.

Remarks. The analysis of detailed dorsal chaetotaxy of S. paraibensis revealed some macrosetae not presented in the original description, like a 6 and m 6 on Th. III and B 6, C 4, T 7, F 4 p and Fe 6 on Abd. IV ( Bellini & Zeppelini 2009 a). In the representation of Fig. 13 C were also added a 5 group on Th. II, omitted from the original description since it is near from the anterior setal collar and can be confused with it. Finally, Fig. 13 C does not present the external macrosetae of Th. II since these setae commonly are not presented or named in Seira or even in Entomobryidae descriptions (see Soto-Adames 2008).

In the original description, S. paraibensis was compared to S. pseudoannulata Bellini & Zeppelini, 2008 ( Bellini & Zeppelini 2008 b). After presenting the complete chaetotaxy of the species it is also clear S. paraibensis resembles in its dorsal chaetotaxy other two recent described species: S. primaria Godeiro & Bellini, 2014 and S. tinguira Cipola & Bellini, 2014 ( Cipola et al., 2014) . Along with some similarities on part of Th. II, Th. III, Abd. II and Abd. III dorsal setae, the three species share the presence of three homologous macrosetae on Abd. I ( M 2, M 3 and M 4 i). In the other hand, S. paraibensis is different from the other two species specially in head and Abd. IV chaetotaxy: it only presents 1 + 1 macroseta ( Pa 5) in the posterior cephalic region, while the other two species have several; in the sutural ‘S’ row: S. primaria has 6 + 6 macrosetae ( S 1, S 2, S 3, S 4, S 5 and S 6) plus the unpaired S0; S. paraibensis has 7 + 7 macrosetae ( S 1, S 2, S 3, S 4, S 5, S 5 i and S 6), plus the unpaired S0; and S. tinguira has 6 + 6 setae ( S 1, S 3, S 5 and S 6 as macrosetae and S 2 and S 4 as microsetae) and S0 is absent; on Abd. II S. tinguira presents a 2 as macrosetae; in Abd. IV, ‘F’ and ‘Fe’ series are clearly distinct in the three species and S. paraibensis is the only species who lacks F 2 p and F 3 p.

Figures

FIGURE 11. Detailed dorsal head chaetotaxy of Seira paraibensis.

FIGURE 12. Detailed dorsal chaetotaxy of Seira paraibensis (left side): A, Th. II; B, Th. III; C, Abd. I; D, Abd. II.

FIGURE 13. Detailed dorsal chaetotaxy of Seira paraibensis: A, Abd. III (left side); B, Abd. IV (left side); C, Distribution of dorsal macrosetae (right side).