Entomobrya multifasciata ( Tullberg, 1871 )

Baquero, Enrique & Jordana, Rafael, 2018, Entomobrya (Collembola, Entomobryidae) for the Canary Islands, Zootaxa 4461 (2), pp. 151-195 : 182-185

Entomobrya multifasciata ( Tullberg, 1871)

Figs 3E –E’, 4N, 16A–G, Table 6

Material studied. All A. Fjellberg leg.: Fuerteventura, Barrio del Ciervo, Jandia slopes, shrubland, 5.IV.1988, 319/ 88, coordinates 28.09117°N, 14.36234°W, 700 m a.s.l., (Loc. 52) one female on slide (MZLU-VAR00001684) and three specimens in ethyl alcohol (MZLU-VAR00001685 to MZLU-VAR00001687); Fuerteventura, Mt. pass, SW Pajara, shrubs/litter, exp. rocks. 7.IV.1988, 336/88, coordinates 28.35706°N, 14.13571°W, 440 m a.s.l., (Loc. 54) one female on slide (MZLU-VAR00001688); Fuerteventura, Degollada de los Granadillos, grass etc., rock crevices, 9.IV.1988, 357/88, coordinates 28.37921°N, 14.09465°W, 420 m a.s.l., (Loc. 55) one female on slide (MZLU-VAR00001689) and 11 specimens in ethyl alcohol (MZLU-VAR00001690 to MZLU-VAR00001700); Gran Canaria, Barrio Oscuro (Barrio de Virgen), moss on rocks, 8.I.1988, 27A/88, coordinates 28.06496°N, 15.58842°W, 750 m a.s.l., (Loc. 51) one female on slide (MZLU-VAR00001701) and four specimens in ethyl alcohol (MZLU-VAR00001702 to MZLU-VAR00001705); Lanzarote, Mt. between Uga-Taiza, annuals, rocks, 21.I.1988, 99/88-1, coordinates 28.94832°N, 13.75557°W, 260 m a.s.l., (Loc. 58) one female on slide (MZLU-VAR00001706); Tenerife, Buenavista, dry slopes, 15.IV.1972, coordinates 28.35765°N, 16.84352°W, 320 m a.s.l., (Loc. 16) one specimen in ethyl alcohol (MZLU-VAR00001707); Tenerife, Mte. de las Mercedes, E-side, Adenocarpus litter, 17.IV.1972, coordinates 28.52536°N, 16.28899°W, 725 m a.s.l., (Loc. 37) three specimens in ethyl alcohol (MZLU-VAR00001708 to MZLU-VAR00001710); Tenerife, Punta del Hidalgo, litter, banana plantation, ants, 14.VII.1987, 12a/87, coordinates 28.57227°N, 16.33123°W, 10 m a.s.l., (Loc. 35) one female juvenile on slide (MZLU-VAR00001712) and rotten banana trunks, one female juvenile on slide (MZLU-VAR00001713) and two specimens in ethyl alcohol (MZLU-VAR00001714 and MZLU-VAR00001715); Tenerife, Teno Alto road, dry Erica / Myrica litter, 17.VIII.1987, 74/87–4, coordinates 28.34122°N, 16.87789°W, 830 m a.s.l., (Loc. 14) one juvenile on slide (MZLU-VAR00001716) and four specimens in ethyl alcohol (MZLU-VAR00001717 to MZLU-VAR00001720); Tenerife, Anaga, Solís, pine forest, 26.VIII.1987, 34A/87, coordinates 28.54426°N, 16.32132°W, 740 m a.s.l., (Loc. 40) one female on slide (MZLU-VAR00001721) and three specimens in ethyl alcohol (MZLU-VAR00001722 to MZLU-VAR00001724); Tenerife, Punta del Hidalgo, grass field at seashore. Cynodon , 28.IX.1987, 97/87–3, coordinates 28.56664°N, 16.33174°W, 12 m a.s.l., (Loc. 35) one female on slide (MZLU-VAR00001725) and ‘colegio’, grass at water reservoir, 29.IX.1987, 96/87, one female on slide (MZLU-VAR00001726) and one specimen in ethyl alcohol (MZLU-VAR00001727); Tenerife, Taganana, Roque de las Animas, Kleinia litter, rocks, 28.III.1988, 308/88, coordinates 28.5 6581°N, 16.21241°W, 510 m a.s.l., (Loc. 42) one female on slide (MZLU-VAR00001731); Tenerife, Vilaflor-Las Cañadas, km 63-64, dry pine forest, 11.VI.1988, 385/88, coordinates 28.17473°N, 16.65028°W, 1850 m a.s.l., (Loc. 23) one female on slide (MZLU-VAR00001733); Tenerife, Las Cañadas, under stones in vegetation, 20.IV.1972, one female on slide (MZLU-VAR00001711) and Las Cañadas, Mta. de Ganzarra, stony slope, plant litter, 11.VI.1988, 394/88, coordinates 28.21171°N, 16.68585°W, 2050 m a.s.l., (Loc. 22) one specimen in ethyl alcohol (MZLU-VAR00001732); Tenerife, Izaña-road, Huelgues, pine litter, 3.XI.1987, 194/87, coordinates 28.42339°N, 16.39897°W, 1350 m a.s.l., (Loc. 26) one female on slide (MZLU-VAR00001728), one male on slide (MZLU-VAR00001730) and one specimen in ethyl alcohol (MZLU-VAR00001729).

Description of the studied specimens from the Canary Islands. Body length up to 2.28 mm, excluding antennae (average 1.83 mm, n = 11). Ground colour white or very light blue, with the characteristic transversal stripes on posterior area of tergites Th II to Abd III, and two transversal bands on Abd IV; some specimens have less pigmentation, reduction principally on head, Th II and Abd IV; femur with a pigmented patch on its distal area; antennae with patches on distal segments, and in some specimens whole Ant III and IV pigmented ( Figs 3E , 4N ).

Head. Eight eyes, GH 1/2–1/3 than EF. Antennae length 0.98 mm, 2.60 times the length of the head (n = 11 for all measurements). Ant IV with apical vesicle simple or bilobed. The relative length of Ant I/II/III/IV = 1/1.87/ 1.79/2.01. Prelabral chaetae ciliated. Labral multi-spinose ( Fig. 16E ). Lateral process of labial papilla E reaching the papilla end.

Body. Length ratio of Abd IV/III = 3.82 (n = 12). Trochanteral organ with 15–23 chaetae. Tibiotarsus not subsegmented, without smooth chaetae, except for smooth terminal chaeta on legs III. Claw with four teeth: paired at 50–60% and first unpaired at 75% from basis; dorsal teeth basal or at a middle location between the claw basis and the lateral teeth level ( Fig. 16F ). Empodium lanceolate, with external lamella smooth of leg III. Tenent hair clavate. Length of manubrium and dens 0.32 and 0.40 mm, respectively (n = 12). Manubrial plate with four chaetae and two pseudopores. Mucro with teeth similar in size, mucronal spine reaching the tip of the subapical tooth ( Fig. 16G ).

Macrochaetotaxy ( Figs 16A–D ). Simplified Mc formula: 3-1-0-3(2)-2/2-3/2-2/1-2-1/0-2-3-2-2. On H4 sometimes S1 is absent in five specimens among 15. Mesothorax: area T1 with two Mc (m1 and m 2i); T2 with three Mc (m4, m 4i and m5). Abdomen: Abd II area A1 with two Mc (a2 and a3), area A2 with two Mc (m3 and m3ea; m3ep is present on five specimens of 15); Abd III with one Mc each on areas A3 (a1) and A5 (m3) and two Mc on A4 (a2 and a3); Abd IV with Mc E1 and C1, in five of the 15 specimens studied, B3 is present, but up to four, on A7 (A3, B3, C1 and E1), three Mc on A8 (A4, B4 and C2a) and two Mc on A9 (A5 and B5) and A10 (A6 and B6).

Ecology. In Fuerteventura, found in shrubs on slopes, in the litter and on rocks. In Gran Canaria, on moss on rocks in a shrubland-forest area. In Lanzarote, in an area between a village and a crop area, with annuals, on rocks. In Tenerife, in very different habitats: litter of Adenocarpus , Erica , Myrica , Pinus and banana, under rocks and grass field at the seashore.

Remarks. The species has a very wide distribution around the world. Table 6 details the differences in species that can be confused with E. multifasciata , such as E. luqueensis Baquero, Arbea & Jordana, 2010 , E. vadelli Jordana & Baquero, 2005 (in: Jordana et al. 2005), E. flavovirens Furgoł, 2017 and E. nigrocincta , whose female has great colour similarity to E. multifasciata . It is separated from E. nigrocincta by the chaetotaxy of Abd III: 1-1-1. It is separated from the others by colour: the absence of colour in E. flavovirens , and almost no colour in E. vadelli , a cave Entomobrya with a spot on the side of Abd IV. Entomobrya . luqueensis is similar in colour to E. multifasciata , although somewhat more intense, but it differs in that it lacks Mc S 4 in area H4 of the head, it always has four Mc in area A6 of Abd IV, and Mc A3 and B3 are present in area A7 of the same segment.

Figures

FIGURE 3. Entomobrya habitus: A, E. guayarminae sp. nov.; B, E. icoae sp. nov. (at left AbdII–IV with a darker pattern); C– D’, E. irayae sp. nov. C, clear form, D–D’ dark form; D’’ E. naziridisi; E, E. multifasciata (E’ dark form); F, E. nairae sp. nov.; F’ E. nevadensis; G, E. nigrocincta, male (G’ female); H, E. palmensis; I, E. cf. quiquelineata; J, E. unostrigata. Bar = 0.5 mm.

FIGURE 4. Entomobrya colouration pattern: A, E. achuteygai sp. nov.; B, E. airami sp. nov.; C, E. amelahuigei sp. nov. (C’. E. amelahuigei sp. nov., dark form); D, E. atteneri sp. nov.; E, E. nairae sp. nov.; F, E. atteneri sp. nov. (clear form); G; E. fainae sp. nov. (G’, E. fainae sp. nov., dark form); H, E. gazmirae sp. nov.; I, E. grimanesae sp. nov. (I’, E. grimanesae sp. nov., dark form); J, E. guacimarae sp. nov. (J’, intermediate colour form; J’’, pale form); K, E. guayarminae sp. nov.; L, E. icoae sp. nov.; M, E. irayae sp. nov.; N, E. multifasciata; O, E. nigrocincta male (O’, female); P, E. palmensis; Q, E. cf. quinquelineata; R, E. irayae sp. nov. dark form; S, E. unostrigata. Bar = 0.5 mm.

FIGURE 16. E. multifasciata: A, head chaetotaxy; B, Th II chaetotaxy; C, Abd II–III chaetotaxy; D, Abd IV chaetotaxy; E, labral papillae; F, claw and empodium of leg III; G, tip of dens and mucro (bar for E, F and G = 0.025 mm).