Entomobrya (Collembola, Entomobryidae) for the Canary Islands
Baquero, Enrique
Jordana, Rafael
Zootaxa
2018
2018-08-21
4461
2
151
195
6FF9V
Baquero & Jordana, 2018
Baquero & Jordana
2018
[151,371,1624,1650]
Collembola
Entomobryidae
Entomobrya
CoL
Animalia
Entomobryomorpha
26
177
Arthropoda
species
icoae
sp. nov.
Figs 3B, 4L, 14A–G, Table 5
Type material.Holotype: female on slide, SPAIN, Canary Islands, Fuerteventura, Jandia, Pico de la Zarza, rock shelves, Ononis, Sideritis, etc., 6.IV.1988, 325/88, coordinates 28.10329°N, 14.35489°W, 760 ma.s.l., (Loc. 53) A. Fjellberg leg. (MZLU-VAR00001593). Paratypes: same data as Holotype, one specimen in ethyl alcohol (MZLU-VAR00001594); Fuerteventura, Jandia, Pico de la Zarza, moss etc., rock crevices, 740 ma.s.l., 6.IV.1988, 320/88, one female on slide (MZLU-VAR00001585) and four specimens in ethyl alcohol (MZLU-VAR00001586 to MZLU-VAR00001589); Jandia, Pico de la Zarza, moss, rocks, Astericus, moist, 750 ma.s.l., 6.IV.1988, 322/88, one female on slide (MZLU-VAR00001590) and two specimens in ethyl alcohol (MZLU-VAR00001591 to MZLU-VAR00001592); Fuerteventura, Betancuria-Valle de St. Inés, Cynara horridalitter, 8.IV.1988, 355/88, coordinates 28.43988°N, 14.05361°W, 600 ma.s.l., (Loc. 56) one female (MZLU-VAR00001595), two males (MZLU-VAR00001596 and MZLU-VAR00001597) and 18 specimens in ethyl alcohol (MZLU-VAR00001598 to MZLU-VAR00001615). Additional material. A. Fjellbergleg.: Lanzarote, 1 kmS Miradordel Rio, shrubs, slopes, 20.I.1988, 83/88, coordinates 29.21011°N, 13.48651°W, 380 ma.s.l., (Loc. 63) three females (MZLU-VAR00001617, MZLU-VAR00001631 and MZLU-VAR00001632), two juveniles (MZLU-VAR00001630 and MZLU-VAR00001633) and 12 specimens in ethyl alcohol (MZLU-VAR00001618 to MZLU-VAR00001629); Lanzarote, Mirador del Haria, moss in rock fissures, 20.I.1988, 85/88, coordinates 29.13057°N, 13.51624°W, 550 ma.s.l., (Loc. 62) one female on slide (MZLU-VAR00001634) and 10 specimens in ethyl alcohol (MZLU-VAR00001635 to MZLU-VAR00001644). A.L. Medina leg.: Gran Canaria, Tamadaba, MSS-sample, 12.II.1983, MSS-T-1, unknown coordinates, one female on slide (MZLU-VAR00001616).
Description.Body length up to 2.65 mm, excluding antennae (average: 2.37, n = 9). Ground colour white or very pale violet, with blue pigment covering many parts of body, as a mosaic, not at lateral body, forming dorsally a long triangle with the tip on Th II and the base on Abd III, and a figure as a ‘mask’ on Abd IV, on central Abd III a truncated cone shape, and lateral Abd V—VI; on legs, pigment on central femur almost whole posterior tibiotarsus; head with dorsolateral pale pigment, from vertex between antennae and posterior eyes, and a ‘Y’ shaped dorsal patch; antennae with pigment from half Ant I ( Figs 3B, 4L). Head. Eight eyes, GH smaller than EF. Antennae length 1.39 mm, 2.56 times the length of the head (n = 7 for all measurements); Ant IV with apical vesicle bilobed; relative length of Ant I/II/III/IV = 1/1.88/1.78/2.00. Prelabral chaetae ciliated. Labral papillae smooth ( Fig. 14E). Lateral process of labial papilla E reaching the papilla end. TABLE 5.Differences of E. icoae sp. nov.and E. irayae sp. nov.among the nearest species of Entomobrya. Character's name and Character's states Value range E. naziridisi E. airaimi sp. nov. E. irayae sp. nov. E. icoae sp. nov. Ch.1 H1 (Head) An2-An3 1-6 3 3 3 3 Ch.2 H2 A5-A7 1-3 1* 3" 1* 3" Ch.3 H3 S'0 0-1 0 0 0 0 Ch.4 H4 S1-S3-S4 0-3 3* 4" 3* 4" Ch.5 H5 Ps2-Ps3-Ps5 0-3 2 2 2 2 Ch.6 Labral papillae: simple and smooth papillae (1), with some projections (2), a projection chaetae like (3) 1-3 2* 2* 2* 1" Lateral process E reaching (1), little shorter (2), shorter (3) 1-3 U 3*" 1 1 Ch.7 eyes G&H size = E&F (1), <E&F (2) 1-2 2 2 2 2 Ch.8 apical antennal retractile bulb no bulb (0), lobe simple (1), bilobed (2), trilobed (3) 0-3 2 2 2 2 Ch.9 Ratio Ant./Head> or = 3 (1),> or = 2 <3 (2), <2 (3) 1-3 2 2 2 2 Ch.11 T1 chaetae number m1-m2i2 or>4 (5) 0-5 2 2 2 2 Ch.12 T2 chaetae number a5, m4-m5 or>8 (9) 0-9 4 4 4 4 Ch.14 Claw internal teeth 1(1), 2(2), 3(3), 4(4) 1-4 4 4 4 4 Ch.15 Claw dorsal tooth basal = 1, internal teeth level = 2 1-2 1 1 1 1 Ch.17 External empodium smooth (0), serrate (1) 0-1 0" 0" 1 1 Ch.18 A1 Abd. II a2-a3 0-2 2 2 2 2 Ch.19 A2 Abd. II m3 series chaetae number 0-7 4* 4* 4* 5-6" Ch.20 A3 Abd. III a1 0-1 1 1 1 1 Ch.21 A4 Abd. III above m2 chaetae number 0-3 2 2 2 2 Ch.22 A5 Abd. III m3-m4 series chaetae number 0-4 2 1*" 2 2 Ch.23 A6 Abd. IV A1-D1 chaetae number;>8 (9) 0-9 1*" 2*" 0* 3" Ch.24 A7 unpair chaeta A03 0-1 0 0 0 0 Ch.25 A7 Abd. IV A2-E1 chaetae number;>9 (10) 0-10 3(4) 3" 3 4 Ch.26 A8 unpair chaeta A04 0-1 0 0 0 0 Ch.27 A8 Abd. IV A4a-C2a chaetae number;>5 (6) 0-6 5*" 3 4 3-4 Ch.28 A9 unpair chaeta A05 0-1 0 0 0 0 Ch.29 A9 Abd. IV A5-B5 chaetae number;>6 (7) 0-7 2 2 2 2 Ch.30 A10 Abd. IV A6-B6 chaetae number;>5 (6) 0-6 2 2 2 2 Ch.31 A11 Abd. IV T1 (ma4e) as trichobothrium 0-1 0-1 0 0 0 0 Ch.32 A12 Abd. IV T2 (m4) as trichobothrium 0-1 0-1 1 1 1 1 Ch.33 A13 Abd. IV T4 (mp4) as trichobothrium 0-1 0-1 1 1 1 1 Ch.34 A14 Abd. IV T6 (p4) as trichobothrium 0-1 0-1 0 0 0 0 Ch.35 Ratio Abd.IV/Abd.III 2 <R <4 (1), R> 4 (2) 1-2 1 2*" 1 1 Ch.36 Manubrial plate chaetae number;>10 (11) 0-11 4* 6-7" 4-5 5-10 Ch.37 Manubrial plate pseudopores 1-2 2 2 2 2 Ch.38 Mucro sub-apical tooth without (0), normal (1), big (2), small(3) 0-1 2 1 1 1 Ch.39 Mucro basal spine: absent (0), present normal (1), present big (2) 0-1 1 1 1 1 Number of differences in relation to the E. icoae sp. nov. 7 6 5 Number of differences in relation to the E. irayae sp. nov. 4 8 5 Body. Length ratio of Abd IV/III = 4.00 (n = 8). Trochanteral organ with 24 chaetae. Tibiotarsus not subsegmented, without smooth chaetae, except for smooth terminal chaeta on legs III. Claw with four teeth: paired at 50% and first unpaired at 75% from basis; dorsal teeth basal ( Fig. 14F). Empodium lanceolate, with serrated external lamella in leg III. Tenent hair clavate. Length of manubrium and dens 0.46 and 0.62 mm, respectively (n = 7). Manubrial plate usually with 5–6 (up to 10) chaetae and two pseudopores. Mucro with teeth similar in size, mucronal spine reaching the tip of the subapical tooth ( Fig. 14G). Macrochaetotaxy ( Figs 14A–D). Simplified Mc formula: 3-3-0-4-2/2-4/2-5(6)/1-2-2/3-4-3–2-2. Head: three Mc An on H1 area (An2, An3a1 and An3), three Mc (A5–7) present on area H2; four Mc on Area H4 (S1, S3, S4 and S4p) and with Ps2 and Ps5 on Area H5. Mesothorax: area T1 with two Mc (m1 and m 2i); T2 with four Mc (m4, m 4i, a5 and m5; a5’ always present as mes). Abdomen: Abd II area A1 with two Mc (a2 and a3), area A2 with up to 5–6 Mc (m3, m3ep, m3e, m3ea, m3eai and m3eai2,sometimes m3ea or m3eai are absent, only in one specimen are both absent in one side); Abd III with one Mc on area A3 (a1), two on A4 (a2 and a3) and two on A5 (m3 and m3e; in one specimen m3a is present at one side, and in two specimens m3e is absent); Abd IV with three Mc on A6, 4 Mc on A7, three Mc on A8 (A4, B4 and C2a, only in two specimens is A e4 present and in one of them asymmetrically), and two Mc on A9 (A5 and B5) and A10 (A6 and B6) In general, the chaetotaxy of this species is more plurichaetotic than the other Entomobryain the Canary Islands.
Ecology.In Fuerteventura, found on rock shelves with Ononisand Sideritis, on moss and rock crevices in shrubland open areas and in Cynara horridalitter. In Lanzarote, on moss in rock fissures in shrubland and areas with trees near crops.
Etymology.Ico was the name of an aboriginal of the Maja ethnic group on the island of Lanzarote.
Remarks.The macrochaetotaxy formula for Abd III 1-2-2 is present in a small number of Entomobryaspecies: E. albida Stach, 1963, E. dumitrescuae Gruia, 1967, E. fimbaensisBaquero & Jordana, 2008, E. pamirensis Yosii, 1966, E. montana Stebaeva, 1971, E. naziridisiJordana & Baquero, 2008in: Ramel et al., 2008and E. schoetti Stach, 1922; but taking into account the chaetotaxy of Th II and Abd II–III only E. naziridisi, among the Entomobryapreviously described, shares its chaetotaxy, along with E. irayae sp. nov., E. tarzigae sp. nov.and E. airami sp. nov., described in this paper. Six characters separate them from E. naziridisiand E. airaimi sp. nov., and five characters differentiate them from E. irayae sp. nov.as shown in Table 5.
1919493292
1988-01-20
A. Fjellberg
29.21011
Lanzarote
1
-13.48651
Rio
27
178
1