Entomobrya emiliae Furgoł, 2017, sp. nov.
Creators: name: Furgoł, Michał
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Entognatha
Collembola
Entomobryidae
Entomobrya
Entomobrya emiliae

description: Entomobrya emiliae sp. nov.
Figs 1–4, 5–6, 9, 18–22, 32–33, Tables 1, 2
Type material. Holotype, female on slide, 29 VI 2011. Poland, Brzeźno ad. Chełm, N 51°09’57”, E 23°39’15”, alkaline fens, (Volhynian Polesia, the most western part of Polesia located in the East of Poland). Paratypes: 7 specimens on slides and 16 specimens alc., same data as holotype. Deposited in the Department of Invertebrate Biology, Evolution and Conservation, University of Wrocław.
Additional material. 57 specimens alc. from Rozkosz ad. Chełm (25 VI 2009, N 51°08’37”, E 23°40’21”, alkaline fens, Volhynian Polesia, eastern Poland); 66 specimens alc. from Barwinek ad. Dukla (1 X 2009, N 49°26’46”, E 21°41’26”, meadow near a river, southeast Poland); 6 specimens alc. from Przemyśl–Winna Góra (2 X 2009, N 49°47’55”, E 22°46’16”, grassy and moist hill, southeast Poland); 49 specimens alc. from Jaksmanice ad. Przemyśl (2 X 2009, N 49°45’21”, E 22°53’27”, moist meadow, southeast Poland); 3 specimens on slides and 108 specimens alc. from Pszczeliny (28 IX 2010, N 49°09’43”, E 22°41’31”, tufts of grass in a moist meadow, Bieszczady Mountains, southeast Poland); 7 specimens on slides and 65 specimens alc. from Tarnawa Wyżna– Bukowiec (7 X 2011, N 49°04’09”, E 22°51’09”, moist area with tufts of grass along a tourist trail, Bieszczady Mountains, southeast Poland); 3 specimens on slides and 52 specimens alc. from Brzeźno (2 IX 2012, the same data as holotype); 13 specimens alc. from peripheries of Radom (26 V 2015, N 51°22’08”, E 21°06’30”, moist area with tufts of Carex sp. and Juncus sp., Central Poland).
Description. Body length up to 3 mm excluding antennae. Body yellowish, usually with two longitudinal bands running from Th II and joining on posterior end of Abd IV, dark rectangle on Abd V and VI. Some individuals with subtle lines on both sides of head and on lateral sides of Th II and III (Figs 5, 32). Some specimens without colour pattern (Figs 6, 33).
Head. Eight ocelli, GH smaller than EF. Antennae length 2352 µm (holotype), more than 3 times head's length, Ant IV with bilobed apical vesicle. Relative length of Ant I/II/III/IV = 1/1.2/?/2; in paratypes = 1/1,2–1,4/1,1–1,3/ 1,9–2,3. Labral papillae smooth and more or less conical (Fig. 19).
Body. Length ratio of Abd IV/III>4. Trochanteral organ as in Fig. 18. Claw with 4 inner teeth: paired at 50% and proximal unpaired at 78% from base (holotype), with distal unpaired minute; dorsal tooth more or less on internal teeth level. Unguiculus lanceolate, with smooth external edge on leg III. Tenent hair as in Fig. 20. Length of manubrium + dentes: 780 + 900 µm (holotype). Manubrial plate with over 10 chaetae and 2 pseudopores (Fig. 22). Mucronal subapical tooth similar in size to apical one, mucronal spine present (Fig. 21). Measurements of selected body parts are listed in table 1.
Chaetotaxy. Simplified basic formula: 3-2(+ 1m)-0-3-2(+ 1m)/3-7/2-4(5)/0-2-1/4(3-6)-1 0 4-1-1(2)-3(4); Head chaetotaxy as in Fig 1. Thorax chaetotaxy (Fig. 2): Th II area T1 with 3 Mc (m 1, m 2 and m 2i), area T2 with 7 Mc (a 5, m 4, m 4i, m 4p, m 4pi, m 4pi2 and m 5). Abdomen chaetotaxy (Figs 3–4): Abd II area A1 with 2 Mc (a 2 and a 3), area A2 with 5 Mc (m 3, m 3e, m 3ea, m 3ei and m 3ep) (in larger specimens (also in holotype) there are 5 macrochaetae in A2 area, while in smaller specimens (but already adult) there are often 4 macrochaetae in the same area). Abd III area A3 without Mc, area A4 with 2 Mc (a 2 and a 3) and area A5 with 1 Mc (m 3). Abd IV plurichaetotic; sometimes with asymmetric distribution of supplementary Mc or m in areas A6, A7 and A8, especially in young adult specimens (in some young adult specimens there is one additional m or Mc in A04 on the A8 area of Abd IV).
Biology. Swampy and moist habitats. The species was usually recorded on grasses and sedges (Carex sp., Juncus sp. and Phragmites sp.).
Discussion. The main colour form of this species resembles that of E. dorsolineata Jordana, Schulz & Baquero, 2011. Concerning chaetotaxy, fourteen Palaearctic species have 0-2-1 Mc in areas A3, A4 and A5 of Abd III, but only four have 2-4 Mc in areas A1 and A2 on Abd II (E. karlstetterae Baquero & Jordana, 2008, E. koreana Yosii, 1965, E. monopunctata Lee & Park, 1984, E. oleniensis Tshelnokov, 1987) and there is one species which has the overlapping formula of chaetotaxy 1(2)-3(4) on Abd II (E. barogii Baquero & Jordana, 2015 in: Baquero et al. 2015). However, they differ from the new species in colouration of body and chaetotaxy of Abd IV.
The two colour forms of E. emiliae differ in presence/absence of two longitudinal lines on dorsal side of a body (Figs 5, 32 vs. 6, 33). This feature is not connected with springtail's sex. Striped form predominates while nonstriped form was found almost exclusively at the type locality. I presume that longitudinal lines may disappear in older specimens.
Etymology. This species is dedicated to my wife Emilia.
description: Published as part of Furgoł, Michał, 2017, Three new species of Entomobrya from Poland (Collembola, Entomobryidae), pp. 43-57 in Zootaxa 4238 (1) on pages 44-47, DOI: 10.11646/zootaxa.4238.1.3, http://zenodo.org/record/345003