Seira ferrarii Parona, 1888

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: 23-28

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Seira ferrarii Parona, 1888


Seira ferrarii Parona, 1888 

Figs 2C‒D View Figure , 14‒17View FIGURE 14View FIGURE 15, Tables 1‒2

Seira ferrarii Parona, 1888  : 9, fig. 7, Genova, Italy (orig. descr.), not examined.

Yosii 1959: 20, fig. 13 View Figure , Madrid, Spain (descr.). Dallai & Ferrari, 1971: 132, figs 1‒4, Italy and Bulgaria (descr.). Dallai, 19 73: 520, fig. 10 View Figure , Lipari Islands, Italy (descr.). Jacquemart & Jacques, 1980: 9, figs 3‒5View FIGURE 3View FIGURE 4View FIGURE 5, Tunisie and Algéria (descr.). Barra, 2004b: 400, figs 1‒13, Socotra Island, Yemen (descr.)

Diagnosis. Body with blue pigment on anterior and posterior margins of Th II to Abd III, all Abd IV, femora II‒III and manubrium ( Figs 2C‒D View Figure ); head mac M 4i, S4, Pa4 and Pp6 absent, eyepatches with 4 interocular chaetae (q absent) ( Fig. 5F View Figure ); labral papillae conical, outer papillae reduced on large pointed projections ( Fig. 14C View Figure ); Th II with 4 medio-central mac (m1‒ 1i, m2‒ 2i) and PmA‒PmC groups with 5‒6, 3 and 4‒5 mac respectively ( Fig. 15A View Figure ); Th III‒Abd III with 14, 6, 4 and 1 central mac respectively ( Figs 15B‒E View Figure ); Abd IV with 12 central and 13 lateral mac ( Fig. 16A); unguis apical tooth present; unguiculus outer edge serrated and without proximal tooth; manubrium ventrally with 2/4 subapical and 14‒16 apical chaetae ( Fig. 17F View Figure ).

Examined material. 5 females on slides and 2 specimens in alcohol ( EAL0055-6 / INPAAbout INPA and JIAP)  : Spain, Alméria Province, Adra municipality (36°46'33''N; 03°06'43''W), in mountain, 566m, 9‒22.x.2015, light-trap, F. Rodríguez collGoogleMaps  . 1 female on slide (EGE0041/JIAP): Gerona Province, Lloret of Mar (41°41'15''N; 02°49'04''E), in beach, 4 m, 14.iv.2015, pitfall-traps, E. Ariza coll. 1 female on slide (EGE0047/JIAP): idem, except “Tossa de Mar” (41°43'19''N; 02°56'19''E), in beach “Menuda”, 3 m. 1 female on slide (FCNyM-UNLP): Argentina, Bahía Blanca, 23.v.1963, E Bianco coll  .

Description based on the listed specimens. Total length ( head + trunk) of specimens 1.43‒1.92 mm (n=4). Alive specimens with AntAbout Ant I‒IV, head, Th II, AbdAbout Abd V, leg I, and tibiotarsus II‒ III brownish; Th III to AbdAbout Abd IV dark, with one silvery transversal band on AbdAbout Abd III and IV ( Fig. 2C View Figure ). Fixed specimens pale white with dark blue pigment on AntAbout Ant I‒IV, anterior and posterior margins of Th II to AbdAbout Abd III, all AbdAbout Abd IV, femora II‒ III and manubrium; eyepatches black ( Fig. 2D View Figure ). Scales present on AntAbout Ant I to apex of AntAbout Ant II, ventral and dorsal head, thorax and abdomen dorsally, legs (except empodia), and manubrium and dentes ventrally. Collophore without scales ( Fig. 17E View Figure ).

Head. Antennae shorter than body length, antennal ratio as I: II  : III: IV = 1: 1.6 1‒2.08: 1.81‒2.08: 2.48‒2.83 (n=4) ( Figs 2C‒D View Figure ). AntAbout Ant IV notAbout not annulated, with apical bulb apically bilobed and blunt sens ( as in Fig. 26A View Figure )  . Ant III apical organ with two rod-like sens, 3 guard sens and 4 blunt sens of different sizes ( Fig. 14A View Figure ). Clypeal formula with 4 (l1‒2), 4 (f), 3 (pf0‒1) ciliate chaetae, l1 acuminate, l2 largest, and 2 frontal smaller ( Fig. 14B View Figure ). Two inner labral papillae conical, outer papillae reduced to large pointed projections ( Fig. 14C View Figure ). Maxillary palp with smooth apical appendage (a.a.) and basal chaeta (b.c.) weakly ciliate, thicker, and 1.16 longer than the apical. Eyes A, B and C slightly larger, F and G slightly smaller, with 4 interocular chaetae (v, p, r, t); head dorsal chaetotaxy as in S. domestica  ( Fig. 5F View Figure ) butAbout but with interocular chaeta q always absent  . Basomedian and basolateral labial fields with M1‒2, R, E, L1‒2, R subequal to the others. Postlabial ventral chaetotaxy with about 15 ciliate chaetae, postlabial formula 4 (G1‒4), 2 (H3‒4), 4 (J1‒4), J2 smaller, basal chaeta (b.c.) largest ( Fig. 14D View Figure ).

Thorax chaetotaxy ( Figs 15A‒B View Figure ). Th II, series ‘a’ with 4 mac (a5ip‒5p); series ‘m’ with 7 mac (m 1i ‒1, m 2i ‒2, m 4i ‒4p); series ‘p’ with 13‒15 macAbout mac (p 1i 2‒1p, p2a‒2ep2, p3, p5), p 1i 2 generally as macAbout mac, p2ep2 rarely 

absent. Th III, series ‘a’ with 7 mac (a 1i ‒6); series ‘m’ with 1 mac (m6); series ‘p’ with 10 mac (p 1i ‒1p, p2a‒2ea, p3, p5‒6). Th ratio as II: III = 1: 0.5 5‒0.74 (n= 4).

Abdomen chaetotaxy ( Figs 15C‒E View Figure , 16A‒B). Abd I, series ‘a’ with 1 mac (a3); series ‘m’ with 5 mac (m 2i ‒4). Abd II, series ‘a’ with 1 mac (a2); 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 12 central mac of series ‘A’ to ‘T’ (A3a‒6, Ae7, B3‒6, C1, T1), and 13 lateral mac of series ‘E’ to ‘Fe’ (E2‒3, E4p, Ee10, F1‒3, Fe2‒5); at least 4 sens (ps type I and 3 type II), and posteriorly with 6 mes and 1 mic present. Abd V, series ‘a’ with 1 mac (a5); series ‘m’ with 4 mac (m2‒3, m5‒5e); series ‘p’ with 5 mac (p1, p3‒5, ap6). AbdAbout Abd ratio as III: IV = 1: 3.41‒4.16. 

Legs. Subcoxa I with 3 chaetae and 2 psp; subcoxa II with an anterior row of 8‒9 chaetae, posterior row of 3 chaetae and 3 psp; subcoxa III with one row of 8 chaetae and 2 posterior psp ( Figs 17A‒C View Figure ). Trochanteral organ with about 12‒15 spine-like chaetae ( Fig. 17D View Figure ). Unguis with median and apical teeth with the same length, basal

teeth smaller. Unguiculus with all lamellae acuminate, pe lamella serrated and without proximal tooth, other lamellae (ai, ae, pi) smooth; ratio unguis: unguiculus = 1: 0.56. Tibiotarsus III distally with inner smooth chaeta 0.88 smaller than unguiculus; and outer tenent hair capitate, discretely ciliate, and 0.88 smaller than unguis.

Collophore ( Fig. 17E View Figure ). Anterior side with 10 ciliate chaetae, including 1 distal mac and 3 apically acuminate chaetae; posterior side with 3 ciliate chaetae, of which 2 distal thickest; lateral flap with 3 smooth chaetae (one small posteriorly) and 9 ciliate chaetae.

Furcula ( Figs 17F‒G View Figure ). Manubrium ventrally with formula 1, 2, 2, 2/4 (subapical), 14‒16 (apical) ciliate chaetae (2 smaller or normal) and al least 3 elongated apical scales per side; manubrium dorsally with 7 subapical ciliate chaetae; manubrial plate with 4‒5 ciliate chaetae and 3 psp.

Remarks. In S. ferrarii  the observed variations in chaetotaxy were in PmAAbout PmA (p 1i 2) and PmC (p2ep2) groups of Th II ( Fig. 15A View Figure ). The absence of macAbout mac p2ep2 probably is common in the species, since 4 macAbout mac in PmC group were observed by Jacquemart & Jacques (1980) in specimens from Tunisie and Algeria, and by Yosii (1959) in

specimens from Spain. However, Jacquemart & Jacques (1980) reported one extra mac in PmA group, and Yosii (1959) only 5 mac on Abd I (m4 absent), therefore this should be investigated to know if it signs as a population variation or to another closed related species. More comparisons concerning S. ferrarii  see remarks on S. dinizi  and Tables 1 and 2.

One specimen identified as Seira ferruginea  Rapoport & Izarra, 1962 from Argentina (FCNyM-UNLP) corresponds to S. ferrarii  , therefore this is the first record of the species from the NewAbout New World ( probably introduced).


Instituto Nacional de Pesquisas da Amazonia


Anguilla National Trust


University of Aberdeen


Nottingham City Natural History Museum


Butler University


Instituto do Meio Ambiente


Provincial Museum of Alberta


University of Newcastle














Seira ferrarii Parona, 1888

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


Seira ferrarii

Seira ferrarii Parona, 1888 : 9