Seira pini Jordana & Arbea 1989
Creators: name: Cipola, Nikolas Gioia
name: Arbea, Javier
name: Baquero, Enrique
name: Jordana, Rafael
name: Morais, José Wellington De
name: Bellini, Bruno Cavalcante
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Collembola
Entomobryomorpha
Entomobryidae
Seira
Seira pini

description: Seira pini Jordana & Arbea, 1989
Figs 2E‒G, 22‒25, Table 2
Seira pini Jordana & Arbea, 1989: 87 ‒91, figs 1‒2, Olaberri (Navarra), Spain (orig. descr.), holotype female on slide (MZNA), examined.
Diagnosis. Body all dark violet, except head to Th III, legs and dentes, sometimes with pigmentation to the femora, or even depigmented trunk (Figs 2E‒G); head mac M 4i, S4, Pa4 and Pp6 present, eyepatches with 3 interocular chaetae (q and r absent) (Fig. 22D); labral papillae pointed, outer papillae smaller (Fig. 22C); Th II with 8‒13 medio-central mac (m1‒2 complex) and PmA‒PmC groups with 11‒14, 3 and 10‒13 mac respectively (Fig. 23 A); Th III‒Abd III with 16‒18, 9‒10, 5 and 1 central mac respectively (Figs 23B‒E); Abd IV with 16‒17 central and 22 lateral mac (Fig. 24 A); unguis apical tooth present (Fig. 25E); unguiculus outer edge smooth and with proximal tooth (Fig. 25E); manubrium ventrally with 0/2 subapical and 16‒18 apical chaetae (Fig. 25G).
Examined type material. Paratypes: 2 males and 1 female in alcohol mounted on slides (IBPT-7/ MZNA) mounted from paratypes in alcohol: Spain, Navarra Province, Olaberri municipality, Valle de Lónguida (42°48'19.6"N; 01°23'39.1"W), forest of Pinus nigra (Pinaceae), 644 m, 21.v.1986, pitfall-traps.
Other examined material. 1 male on slide (EJA0007/JIAP): Spain, Province Jaén, Linarejos municipality, Sierra de Cazorla (37°51'27''N; 03°00'00''W), 1000 m, 06.xii.2002, M. Baena coll. 1 male on slide (EJA0029/JIAP): Province Jaén, Jabalcuz municipality (37°40'25''N; 03°54'26''W), 1614 m, 16.iii.2005, A. Castro coll. 1 male and 8 females on slides and 41 in alcohol (EZA3152/INPA and MZNA): Province Zaragoza, Monegros region, Pina de Ebro municipality, Retuerta de Pina (41°29'20''N 0°25'33''W), in Ononis tridentata L. (Fabaceae), 350 m, 10.v.1991, pitfall-trap, J. Blasco coll. 1 juvenile on slide (EZA2472/JIAP): idem, except 41°23'16''N; 00°25'42''W, 380 m, 10.xi.1990. 1 male, 2 females and 1 juvenile on slides (EZA6104/JIAP): idem, except 41°25'53''N; 00°22'01''W, 400 m, 10.vii.1994. 1 female on slide (EAL0037/JIAP): Province Almería, Parque Natural Cabo de Gata-Nijar (36°40'59''N; 02°12'59''W), in rambla del Corralete, 39 m, 10.vi.2004, pitfall-trap, A. Aguirre and eq.
coll. 1 male on slide (EAL0007/ JIAP): idem, except in around Torregarcía beach, 25.ii.2005.
Redescription. Total length (head + trunk) of specimens 2.94‒3.60 mm (n=4), holotype 3.60 mm. Type specimens pale yellowish to white with dark violet pigment on all body, except central dorsum of head to Th III, trochantera to empodia and dentes distally; eyepatches black (Fig. 2E). Scales present on Ant I to basal half of Ant III, ventral and dorsal head, thorax and abdomen dorsally, legs (except empodia), anterior collophore, dorsal and ventral manubrium and dentes ventrally.
Head. Antennae shorter than body length, antennal ratio as I: II: III: IV = 1: 1.2 5‒1.39: 1.44‒1.87: 2.75‒3.43 (n=4), holotype 1: 1.25: 1.70: 2.75 (Fig. 2E). Ant IV annulated, with simple apical bulb retractile and blunt sens. Ant III apical organ with two rod-like sens, 3 guard sens and several blunt sens of different sizes (Fig. 22 A). Clypeal formula with 4 (l1‒2), 7 (f), 3 (pf0‒1) ciliate chaetae, l1 acuminate, l2 largest, and 3 frontal smaller (Fig. 22B). Four conical labral papillae, outer papillae smaller (Fig. 22C). Maxillary palp with smooth apical appendage (a. a.) and basal chaeta (b.c.) weakly ciliated, thicker and 1.17 longer than apical. Eyes A, B and C larger, G and H smaller, with 3 interocular chaetae (v, p, t); head dorsal chaetotaxy (Fig. 22D) with 8‒10 ‘An’ mac (An 1, An 2‒3), 4 ‘A’ mac (A 0, A 2‒3, A 5), 4 ‘M’ mac (M1‒2, M 4i ‒4), 8 ‘S’ mac (S0‒6), 1 ‘Ps’ mac (Ps2), 5 ‘Pa’ mac (Pa1‒5), 2 ‘Pm’ mac (Pm1, Pm3), 5 ‘Pp’ mac (Pp 1‒3, Pp 5‒6), and 3 ‘Pe’ mac (Pe 2‒3 plus Pe 3p). Basomedian and basolateral labial fields with M1‒2, R (smaller), E, L1‒2. Postlabial ventral chaetotaxy with about 16‒17 ciliate chaetae, postlabial formula 4‒5 (G1‒4), 4 (H2‒4), 4 (J1‒4), X3? present or absent, basal chaeta absent (Fig. 22E).
Thorax chaetotaxy (Figs 23 A ‒B). Th II, series ‘a’ with 4 mac (a5ip‒5p); series ‘m’ with 11‒16 mac (m1‒2 complex, m 4i ‒4p), five inner mac present or absent; series ‘p’ with 25‒31 mac (p1ip5‒p1p5p, p2a‒p2ep2, p 3i 4‒ p3p3, p5), p1ip4 and p1p6 present or absent, p1ip5 generally mac. Th III, series ‘a’ with 7 mac (a 1i ‒6); series ‘m’ with 1 mac (m6); series ‘p’ with 12‒14 mac (p1ip2‒1p, p2a3‒2ea, p3, p5‒6), p 1i 3 and p2a3 present or absent. Th ratio as II: III = 1: 0.3 2‒0.59 (n= 4), holotype 1: 0.45.
Abdomen chaetotaxy (Figs 23 C‒E, 24 A ‒B). Abd I, series ‘a’ with 4‒5 mac (a1‒3), a1 generally as mic; series ‘m’ with 5 mac (m 2i ‒4), m6 mic absent. Abd II, series ‘a’ with 2 mac (a2‒3); series ‘m’ with 4 mac (m3‒3e, m5). Abd III, series ‘m’ with 3 mac (m3, am6, pm6); series ‘p’ with 1 mac (p6). Abd IV with 16‒17 central mac of series ‘A’ to ‘T’ (A 3a‒6, Ae7, B1‒6, Be2‒3, C1, C4, T1), A 3a can be displaced and Be3 present or absent; and 22 lateral mac of series ‘E’ to ‘Fe’ (E2‒4p, Ee7, Ee10, F1‒3, Fe2‒5 and four of uncertain homology); at least 3 sens (ps type I and 2 type II), and posteriorly with 7 mes present. Abd V, series ‘a’ with 1 mac (a5); series ‘m’ with 4 mac (m2‒3, m5‒5e); series ‘p’ with 6 mac (p1, p3‒5, ap6, pp6). Abd ratio as III: IV = 1: 3.50‒5.72 (n= 4), holotype 1: 4.77. Male genital plate circinate with 6+7 (one unpaired posterior) and 3+3 small inner smooth chaetae (Fig. 25I).
Legs. Subcoxa I with 3 chaetae and 2 psp; subcoxa II with an anterior row of 9 chaetae, posterior row of 7 chaetae, 1 anterior chaeta and 4 psp; subcoxa III with one row of 11 chaetae, 3 anterior chaetae and 2 posterior psp (Figs 25 A ‒C). Trochanteral organ with about 44 spine-like chaetae (Fig. 25D). Unguis with median and apical teeth with the same length, basal teeth smaller. Unguiculus with all lamellae acuminate, pe lamella with small proximal tooth, other lamellae (ai, ae, pi) smooth; ratio unguis: unguiculus = 1: 0.63 (Fig. 25E). Tibiotarsus III distally with inner smooth chaeta 0.61 smaller than unguiculus; and outer tenent hair capitate, discretely ciliate, and 0.81 smaller than unguis.
Collophore (Fig. 25F). Anterior side with 16 ciliate chaetae, including 3 distal mac, 1 apically acuminate and 1 basal spine-like chaeta finely ciliate; posterior side with 14 ciliate chaetae, 2 distal thickest and 5 thinnest; lateral flap with 3 smooth chaetae (one small posteriorlly) and about 33 ciliate chaetae.
Furcula (Figs 25G‒H). Manubrium ventrally with formula 0, 0, 0, 0/2 (subapical), 16‒18 (apical) ciliate chaetae and approximately 19 elongated apical scales per side; manubrium dorsally with 6 subapical ciliate chaetae; manubrial plate with 9 ciliate chaetae and 3 psp.
Remarks. Seira pini is most similar to S. squamoornata (Scherbakov, 1898), S. saxatilis Gisin & Gama, 1962 and S. lusitanica Gama, 1964 by dense macrochaetotaxy of head with mac M 4i, S4, Pa4 present, Th II with about 10 medio-central mac (m1‒2 complex) and PmA and PmC groups with 11‒13 and 10‒13 mac, respectively; and Th III‒Abd IV with at least 16, 9, 5, 1 and 16 central mac, respectively (Tab. 2). However, S. pini differs from these species by head with mac Pp6 present (absent in other species), Th II with up to 13 medio-central mac (10 in S. squamoornata and S. lusitanica, 11 in S. saxatilis) and PmA and PmC groups with up to 14 and 13 mac respectively (12 or less PmA mac in S. squamoornata and S. lusitanica, and less than PmC 11 mac in others species); Th III with 16‒18 central mac (15 in S. saxatilis, 24 in S. lusitanica), and Abd IV with up to 17 central mac (16 in S. lusitanica and S. saxatilis). Other comparisons among species are presented in Tables 1 and 2.
Seira pini may have different color patterns in populations (Figs 2E‒G). Specimens of Monegros (Zaragoza) are similar to the species of the type locality, except for the pigmentation of the trochanters and femora and the dorsal rearrangement that extends until Abd III. Species from this same population may still have total dorsal depigmentation of Th II to Abd III, and partially of Abd IV, remaining in the latter case a central spot of dark pigment.
description: Published as part of Cipola, Nikolas Gioia, Arbea, Javier, Baquero, Enrique, Jordana, Rafael, Morais, José Wellington De & Bellini, Bruno Cavalcante, 2018, The survey of Seira Lubbock, 1870 (Collembola, Entomobryidae, Seirinae) from Iberian Peninsula and Canary Islands, including three new species, pp. 1-66 in Zootaxa 4458 (1) on pages 33-39, DOI: 10.11646/Zootaxa.4458.1.1, http://zenodo.org/record/1458171