Entomobrya flavovirens, Furgoł, Michał, 2017

Furgoł, Michał, 2017, Three new species of Entomobrya from Poland (Collembola, Entomobryidae), Zootaxa 4238 (1), pp. 43-57 : 47-51

Entomobrya flavovirens sp. nov.

Figs 7 , 9 , 10–13 , 27–31 , 34, Tables 1 , 3

Type material. Holotype, male on slide, 1 VI 2011. Poland, N 50°20’50”, E 16°24’29”, vicinity of the peatbog nature reserve „ Torfowisko pod Zieleńcem ” on Sphagnum sp. (southwest Poland, Central Sudetes, Bystrzyckie Mountains) . Paratypes: 4 specimens on slides and 5 specimens alc., same data as holotype. Deposited in the Department of Invertebrate Biology , Evolution and Conservation, University of Wrocław.

Additional material. Samotwór, by Wrocław, 4 specimens on slides and 26 specimens alc. (22 III 2012, N 51°06’42”, E 16°50’48”, tufts of grass along a watercourse).

Description. Body length up to 2 mm excluding antennae. Body colour yellowish or greenish without colour pattern ( Figs 7 , 34).

Head. Eight ocelli, GH smaller than EF. Antennae length 939 µm (holotype), more than 2 times head's length, Ant IV with bilobed apical vesicle ( Fig. 30 ). Relative length of Ant I/II/III/IV = 1/1,65/1,6/2 (holotype). Labral papillae smooth ( Fig. 28 ).

Body. Length ratio of Abd IV/III <4. Trochanteral organ as in Fig. 27 . Claw with 4 internal teeth: paired at 56– 58% and proximal unpaired at 75–79% from basis (holotype and paratypes), with the most distal unpaired tooth minute; dorsal tooth more or less at level of internal teeth. Unguiculus lanceolate, with smooth external edge on leg III. Tenent hair as in Fig. 29 . Length of manubrium + dentes: 385 + 412 µm (holotype). Manubrial plate with 4 chaetae and 2 pseudopores ( Fig. 31 ). Mucronal subapical tooth similar in size to the terminal one, mucronal spine present. Measurements of particular parts of a body in table 1.

Character/Species E. lanuginosa E. quinquelineata E. flavovirens

sp. nov. Labral papilla: 1, without/ 2, simple and smooth papilla/ 3, 2 2 2 multispinose or with some projections/ 4, a projection chaetae like

Eyes size: 1, GH=EF; 2, GH<EF 2 2 2 Ant. vesicle: 1, no bulb/ 2, lobule simple/ 3, bilobed/ 4, trilobed 2* 2* 3 Tibiotarsi, smooth setae: 1, not present or only 1 on tibiotarsus III/ 1 1 1 2, double file on all tibiotarsi;

Claw, dorsal tooth: 1, absent/ 2, basal/ 3, internal teeth level/ 4, 2* 2* 3 intermediate

Mucro, sub-apical tooth: 1, without/ 2, normal/ 3, bigger than 2 2 2 apical/ 4, smaller than apical

Sum of the differences between the new species and the other 8 2

species.

Additional characters

Chaetotaxy. Simplified formula: 3-1-0-2-2(+ 1m)/2-3/2-2/1-2-1/0-4(3-5)-3(4)-2-2. Head chaetotaxy as in Fig 10 . Thorax chaetotaxy ( Fig. 11 ): Th II area T1 with 2 Mc (m 1 and m 2i), area T2 with 3 Mc (a 5, m 4 and m 4i). Abdomen chaetotaxy ( Figs 12–13 ): Abd II area A1 with 2 Mc (a 2 and a 3), area A2 with 2 Mc (m 3 and m 3e). Abd III area A3 with 1 Mc (a 1), area A4 with 2 Mc (a 2 and a 3) and area A5 with 1 Mc (m 3). (In one specimen there are 5 Mc in A7 area.)

Biology. This species was found in a peatbog with Sphagnum sp. and in tufts of grass along a watercourse (a very small river with melioration channels).

Discussion. The new species may be confused with widely known E. lanuginosa (Nicolet, 1842) and other species without a colour pattern. Fourteen Palaearctic species have the same chaetotaxy on the Abd II (2-2 Mc in the A1 and A2 areas); eight of them have 1-2-1 Mc in areas A3, A4 and A5 of Abd III, respectively. The other four ( E. luqueensis Baquero, Arbea & Jordana, 2010 , E. multifasciata ( Tullberg, 1871) , E. quinquelineata Börner, 1901 , E. vadelli Jordana & Baquero, 2005 ) have 2-3 Mc in areas T1 and T2 of Th II. Considering chaetotaxy of Abd IV, only formula of Mc by E. quinquelineata overlaps with the one in the new species. However, these two species have different colouration, body size, relative length of Ant I/II/III/IV, position of teeth on internal edge of a claw and position of dorsal tooth (see Baquero & Jordana 2008). They also differ in habitat preferences. The new species inhabits moist places. On the other hand, in Poland, I caught E. quinquelineata only in very dry, sandy and loess places, often with xerophilous or pioneer vegetation.

Etymology. The specific name is derived from the yellowish-green colouration of a body.

Figures

FIGURE 9. Records of E. emiliae sp. nov. (triangles), E. flavovirens sp. nov. (circles) and E. kasprowiensis sp. nov. (squares).

FIGURES 5 – 8. Colour patterns of new species (only two first segments of antennae shown): 5 – 6, Two forms of E. emiliae sp. nov.; 7, E. flavovirens sp. nov.; 8, E. kasprowiensis sp. nov.

FIGURES 10 – 13. E. flavovirens sp. nov.: 10, Dorsal head macrochaetotaxy; 11, Dorsal Th II macrochaetotaxy; 12, Dorsal Abd II – III macrochaetotaxy; 13, Dorsal Abd IV macrochaetotaxy.

FIGURES 18 – 31. Morphological characters of three new species of Entomobrya. E. emiliae sp. nov. 18 – 22: 18, Trochanteral organ; 19, Labral papillae; 20, Tip of tibiotarsus and claw of leg III; 21, Tip of dens and mucro; 22, Manubrial plate. E. flavovirens sp. nov. 27 – 31: 27, Trochanteral organ; 28, Labral papillae; 29, Tip of tibiotarsus and claw of leg III; 30, Ant IV apical vesicle; 31, Manubrial plate. E. kasprowiensis sp. nov. 23 – 26: 23, Labral papillae; 24, Trochanteral organ; 25, Tip of tibiotarsus and claw of leg III; 26, Manubrial plate.

Tables

TABLE 3 Diagnostic characters of Entomobrya species most similar to E. flavovirens sp. nov. in terms of colouration (E. lanuginosa) and macrochaetotaxy (E. quinquelineata).

H1 area (head): Mc number An2-An3	3	3	3
H2 area (head): Mc number A5-A7	2*	1	1
H3 area (head): Mc number S'0	0	0	0
H4 area (head): Mc number S1-S3-S4	3*	2	2
H5 area (head): Mc number Ps2-Ps3-Ps5	3*	2	2(+1m)