Entomobrya emiliae, Furgoł, Michał, 2017

Furgoł, Michał, 2017, Three new species of Entomobrya from Poland (Collembola, Entomobryidae), Zootaxa 4238 (1), pp. 43-57: 44-47

publication ID

https://doi.org/10.11646/zootaxa.4238.1.3

publication LSID

lsid:zoobank.org:pub:51D8D40B-ED19-4711-924C-D86A09465DCC

DOI

http://doi.org/10.5281/zenodo.6029709

persistent identifier

http://treatment.plazi.org/id/A31FC858-FF97-FFDE-A8E6-B1A0FC9C8954

treatment provided by

Plazi

scientific name

Entomobrya emiliae
status

sp. nov.

Entomobrya emiliae   sp. nov.

Figs 1–4 View FIGURES 1 – 4 , 5–6 View FIGURES 5 – 8 , 9 View FIGURE 9 , 18–22 View FIGURES 18 – 31 , 32–33 View FIGURES 32 – 33 , Tables 1 View TABLE 1 , 2 View TABLE 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) GoogleMaps   . 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. GoogleMaps  

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) GoogleMaps   ; 66 specimens alc. from Barwinek ad. Dukla (1 X 2009, N 49°26’46”, E 21°41’26”, meadow near a river, southeast Poland) GoogleMaps   ; 6 specimens alc. from Przemyśl–Winna Góra (2 X 2009, N 49°47’55”, E 22°46’16”, grassy and moist hill, southeast Poland) GoogleMaps   ; 49 specimens alc. from Jaksmanice ad. Przemyśl (2 X 2009, N 49°45’21”, E 22°53’27”, moist meadow, southeast Poland) GoogleMaps   ; 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) GoogleMaps   ; 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) GoogleMaps   ; 3 specimens on slides and 52 specimens alc. from Brzeźno (2 IX 2012, the same data as holotype) GoogleMaps   ; 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) GoogleMaps   .

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 View FIGURES 5 – 8 , 32 View FIGURES 32 – 33 ). Some specimens without colour pattern ( Figs 6 View FIGURES 5 – 8 , 33 View FIGURES 32 – 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 View FIGURES 18 – 31 ).

Body. Length ratio of Abd IV/III>4. Trochanteral organ as in Fig. 18 View FIGURES 18 – 31 . 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 View FIGURES 18 – 31 . Length of manubrium + dentes: 780 + 900 µm (holotype). Manubrial plate with over 10 chaetae and 2 pseudopores ( Fig. 22 View FIGURES 18 – 31 ). Mucronal subapical tooth similar in size to apical one, mucronal spine present ( Fig. 21 View FIGURES 18 – 31 ). 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 View FIGURES 1 – 4 . Thorax chaetotaxy ( Fig. 2 View FIGURES 1 – 4 ): 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 View FIGURES 1 – 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 View FIGURES 5 – 8 , 32 View FIGURES 32 – 33 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.

TABLE 1. Measurements of the studied specimens (holotypes), in micrometres, ‘ - ‘: no data.

  E. emiliae   n. sp. E. flavovirens   n. sp. E. kasprowiensis   n. sp.
Ant I 565 150 80
Ant II 650 247 155
Ant III - 236 155
Ant IV 1137 306 205
Antennae 2352 939 595
Head 617 305 300
Ant/head ratio 3,81 3,08 1,98
Th II 407 170 137
Th III 237 125 77
Abd I 187 100 57
Abd II 235 120 92
Abd III 142 127 102
Abd IV 912 477 357
Abd IV/III ratio 6,42 3,75 3,5
Abd V 170 110 92
Abd VI 105 50 65
Body 3012 1584 1279
Manubrium 780 385 262
Dens 900 412 310
Claw 50 34 25
Unguiculus 36 22 18
Tenent hair 70 46 33

TABLE 2 Diagnostic characters of Entomobrya species most similar to E. emiliae sp. nov. in terms of colouration (E. dorsolineata) and macrochaetotaxy (E. barogii, E. karlstetterae, E. koreana, E. monopunctata, E. oleniensis). U, no data; *, Number of differences between each species and the new one.

Character/Species H1 area (head): Mc number An2-An3 dorsolineata   . E 4* barogii   . E 4-6* karlstetterae   . E 5* koreana   . E U monopunctata   . E U oleniensis   . E 3 . sp emiliae   .. nov E 3
H2 area (head): Mc number A5-A7 2 1* 1* U U 1* 2(+1m)
H3 area (head): Mc number S'0 0 1* 1* U U 0 0
H4 area (head): Mc number S1-S3-S4 3* 2 2 U U 2 2
H5 area (head): Mc number Ps2-Ps3-Ps5 1b* 2 3* U U 2 2(+1m)
Labral papilla: 1, without/ 2, simple and smooth papilla/ 3, multispinose or with some projections/ 4, a projection chaetae like 3* 2 3* 4* 4* 4* 2
Eyes size: 1, GH=EF; 2, GH<EF 2 2 1* 2 2 2 2
Ant. vesicle: 1, no bulb/ 2, lobule simple/ 3, bilobed/ 4, trilobed 2* 2* 3 2* 2* 2/3 3
Ant./head ratio: 1,> or = 3/ 2,> or = 2 <3/ 3, <2 1 2* 2* 1 2* 2* 1
T1 area (Th II): Mc number m1-m2i2 2* 0* 0* 4* U 4* 3
T2 area (Th II): Mc number a5-m5 4* 4* 2* 4* U 5* 7
Tibiotarsi, smooth setae: 1, not present or only 1 on tibiotarsus III/ 2, double file on all tibiotarsi; 1 1 1 1 1 1 1
Claw, dorsal tooth: 1, absent/ 2, basal/ 3, internal teeth level/ 4, intermediate 2* 4* U U 2* 3 3
Unguiculus, externally: 1, smooth/ 2, serrate/ 3, with tooth 2* 1 1 1 1 2* 1
A1 area (Abd II): Mc number a2-a3 2 1-2 2 2 2 2 2
A2 area (Abd II): Mc number m3 5 3-4 4 4 4 4 4(5)
A3 area (Abd III): Mc number a1 1* 0 0 0 0 0 0
A4 (Abd III): Mc number m2 2 2 2 2 2 2 2
A5 (Abd III): Mc number m3-m4 1 1-2 1 1 1 1 1
A6 (Abd IV): Mc number A1-E1 (9 if> 8) 0* 0* 0* 0* 0* 0* 4(3-6)
A7 (Abd IV): Mc number A2-E1 (10 if> 9) 1 0 7* 0* 4* 4* 2* 1* 1 0 4
A8 (Abd IV): Mc number A4-C2a (6 if> 5) 0* 3-4* 3* 4* 1 3* 1
A9 (Abd IV): Mc number A5-B5 (6 if> 5) 3* 2 2 3* 2 2 1(2)
A10 (Abd IV): Mc number A6-B6 (6 if> 5) 3 2* 2* 2* 2* 2* 3(4)
Abd IV/Abd III ratio: 1, 2 <R <4/ 2, R> 4 2 1* 2 2 2 2 2
Manubrial plate chaetae number (11 if> 10) 4* 5* 8* U U 4* 11
Mucro, sub-apical tooth: 1, without/ 2, normal/ 3, bigger than apical/ 4, smaller than apical 3* 2 2 2 3* 2 2
Sum of the differences between the new species and the other species. 16 14 14 9 8 11