Seira pini Jordana & Arbea, 1989

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, Zootaxa 4458 (1), pp. 1-66: 33-39

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Seira pini Jordana & Arbea, 1989


Seira pini Jordana & Arbea, 1989 

Figs 2E‒G View Figure , 22‒25View FIGURE 22View FIGURE 23, Table 2

Seira pini Jordana & Arbea, 1989  : 87 ‒91, figs 1‒2, Olaberri (Navarra), Spain (orig. descr.), holotype female on slide ( MZNAAbout 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 View Figure ); head macAbout mac M 4i, S4, Pa4 and Pp6 present, eyepatches with 3 interocular chaetae (q and r absent) ( Fig. 22D View Figure ); labral papillae pointed, outer papillae smaller ( Fig. 22C View Figure ); Th II with 8‒13 medio-central macAbout mac (m1‒2 complex) and PmA‒PmC groups with 11‒14, 3 and 10‒13 macAbout mac respectively ( Fig. 23 A View Figure ); Th III ‒ AbdAbout Abd III with 16‒18, 9‒10, 5 and 1 central macAbout mac respectively ( Figs 23B‒E View Figure ); AbdAbout Abd IV with 16‒17 central and 22 lateral macAbout mac ( Fig. 24 A); unguis apical tooth present ( Fig. 25E View Figure ); unguiculus outer edge smooth and with proximal tooth ( Fig. 25E View Figure ); manubrium ventrally with 0/2 subapical and 16‒18 apical chaetae ( Fig. 25G View Figure ).

Examined type material. Paratypes: 2 males and 1 female in alcohol mounted on slides (IBPT-7/ MZNAAbout MZNA) mounted from paratypes in alcohol: Spain, Navarra Province, Olaberri municipality, ValleAbout 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,, 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 View Figure ). 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 View Figure ). Ant IV annulated, with simple apical bulb retractile and blunt sens. AntAbout Ant III apical organ with two rod-like sens, 3 guard sens and several blunt sens of different sizes ( Fig. 22 A View Figure )  . Clypeal formula with 4 (l1‒2), 7 (f), 3 (pf0‒1) ciliate chaetae, l1 acuminate, l2 largest, and 3 frontal smaller ( Fig. 22B View Figure ). Four conical labral papillae, outer papillae smaller ( Fig. 22C View Figure ). 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 View Figure ) with 8‒10 ‘An’ macAbout mac (An 1, An 2‒3), 4 ‘A’ macAbout mac (A 0, A 2‒3, A 5), 4 ‘M’ macAbout mac (M1‒2, M 4i ‒4), 8 ‘S’ macAbout mac (S0‒6), 1 ‘Ps’ macAbout mac (Ps2), 5 ‘Pa’ macAbout mac (Pa1‒5), 2 ‘Pm’ macAbout mac (Pm1, Pm3), 5 ‘Pp’ macAbout mac (Pp 1‒3, Pp 5‒6)  , and 3 ‘Pe’ macAbout 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 View Figure ).

Thorax chaetotaxy ( Figs 23 A ‒B View Figure ). Th II, series ‘a’ with 4 macAbout 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 macAbout 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 View Figure , 24 A ‒B)  . AbdAbout Abd I, series ‘a’ with 4‒5 macAbout mac (a1‒3), a1 generally as micAbout mic; series ‘m’ with 5 macAbout mac (m 2i ‒4), m6 micAbout 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). AbdAbout Abd IV with 16‒17 central macAbout 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 macAbout 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). AbdAbout 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 View Figure ).

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 pspAbout psp ( Figs 25 A ‒C View Figure )  . Trochanteral organ with about 44 spine-like chaetae ( Fig. 25D View Figure ). 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 View Figure )  . 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 View Figure ). 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 View Figure ). 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 macAbout mac M 4i, S4, Pa4 present, Th II with about 10 medio-central macAbout mac (m1‒2 complex) and PmA and PmC groups with 11‒13 and 10‒13 macAbout mac, respectively; and Th III ‒ AbdAbout Abd IV with at least 16, 9, 5, 1 and 16 central macAbout mac, respectively ( Tab. 2). However, S. pini  differs from these species by head with macAbout mac Pp6 present ( absent in other species), Th II with up to 13 medio-central macAbout mac (10 in S. squamoornata  and S. lusitanica  , 11 in S. saxatilis  ) and PmA and PmC groups with up to 14 and 13 macAbout mac respectively (12 or less PmA macAbout mac in S. squamoornata  and S. lusitanica  , and less than PmC 11 macAbout mac in others species); Th III with 16‒18 central macAbout mac (15 in S. saxatilis  , 24 in S. lusitanica  ), and AbdAbout Abd IV with up to 17 central macAbout 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 View Figure ). 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 mayAbout may still have total dorsal depigmentation of Th II to AbdAbout Abd III, and partially of AbdAbout Abd IV, remaining in the latter case a central spot of dark pigment  .


Universidad de Navarra, Museum of Zoology


Instituto do Meio Ambiente


University of Aberdeen


Universidad Nacional de Colombia


Anguilla National Trust


Mar Ivanios College (Zoology museum)


Parasitic Seed Plants


Adygean State University














Seira pini Jordana & Arbea, 1989

Cipola, Nikolas Gioia, Arbea, Javier, Baquero, Enrique, Jordana, Rafael, Morais, José Wellington De & Bellini, Bruno Cavalcante 2018


Seira pini Jordana & Arbea , 1989

Seira pini Jordana & Arbea , 1989 : 87