Endonura levantica , Smolis, Adrian, Deharveng, Louis & Kaprus’, Ighor J., 2011

Smolis, Adrian, Deharveng, Louis & Kaprus’, Ighor J., 2011, Studies on the non-European Endonura Cassagnau, 1979 (Collembola, Neanuridae, Neanurinae), Zootaxa 3004, pp. 45-56: 46-48

publication ID

10.5281/zenodo.278475

persistent identifier

http://treatment.plazi.org/id/03C9E776-FFDD-FFBA-BCAB-FD45A4A9FF72

treatment provided by

Plazi

scientific name

Endonura levantica
status

sp. nov.

Endonura levantica  sp. nov.

Figs 1 –10View FIGURES 1 – 10, Tab. 1

Type material. Holotype: adult female on slide: Israel: Nahal Keziv, Quercus calliprinos  forest, litter, N slope, 16.ii. 1999, leg. T. Pavliček, ZIWU. Paratype: juvenile on slide, same data as holotype, MNHL.

Etymology. The species name refers to the historic name of the Near East.

Diagnosis. Habitus typical of the genus Endonura  . Dorsal tubercles present and well developed, except tubercles Di on th. I. 2 + 2 dark-pigmented eyes. Buccal cone rather short. Head with chaetae A, B, C, D and E. Chaeta O present or absent. Tubercles Dl and (L+So) on head with 6 and 8 chaetae respectively. Tubercles De on th. II and III with 3 and 4 chaetae respectively. Tubercles L on abd. III and IV with 3 and 5–6 chaetae respectively. Abd. IV and V with 8 and 3 tubercles respectively. Claw without inner tooth. Tibiotarsi with chaetae B 4 and B 5 short.

Description. Habitus typical of the genus. Body length (without antennae): holotype 0.84 mm, paratype (first instar) 0.77 mm. Colour of the body white. 2 + 2 medium dark-pigmented eyes ( Fig. 1View FIGURES 1 – 10).

Types of dorsal ordinary chaetae. Macrochaetae Ml relatively long, strongly thickened, almost cylindrical, arclike or straight, narrowly sheathed, feebly serrated, apically rounded or rarely pointed (mostly in lateral part of body) ( Figs 1, 5, 8–10View FIGURES 1 – 10); macrochaetae Mc and Mcc thickened, straight and blunt; mesochaetae and microchaetae short, thin, feebly serrated and pointed.

Head. Buccal cone short. Labrum rounded, with ventral sclerifications as in Fig. 4View FIGURES 1 – 10. Labrum chaetotaxy 0?/ 2, 4, prelabral chaetae not seen. Labium with four basal, three distal and four lateral chaetae, papillae x absent. Maxilla styliform ( Fig. 3View FIGURES 1 – 10), mandible thin tridentate ( Fig. 2View FIGURES 1 – 10). Chaetotaxy of antennae as in Tab. 2 c and in Fig. 6View FIGURES 1 – 10. Apical vesicle distinct, trilobed. S–chaetae of ant.IV of medium length and moderately thickened, S 3 thinner than others ( Fig. 6View FIGURES 1 – 10). Chaetotaxy of head as in Tab. 1 a, b, and Fig. 1View FIGURES 1 – 10. Tubercles Cl and Af separate ( Fig. 1View FIGURES 1 – 10). Chaeta O present or absent. Chaetae D and E free. Tubercle Dl with 6 chaetae, chaeta Dl 3 present ( Fig. 1View FIGURES 1 – 10). Tubercle (L+So) with 8 chaetae, chaetae So 3 and L 3 absent ( Fig. 1View FIGURES 1 – 10). Elementary tubercle BE absent. Chaeta A shorter than B.

Thorax, abdomen, legs. Body s-chaeta thin and smooth, distinctly shorter than nearby macrochaetae ( Figs 5, 8View FIGURES 1 – 10). Chaetotaxy of th. and abd. as in Tab. 1 d and in Figs 5, 7–10View FIGURES 1 – 10. Tubercles Di on th.I not differentiated. Chaetae De 3 on th. III and abd. I–III as minute microchaetae. Chaetae De 2 on th. II–III and De 3 on th. III connected with tubercle De. Chaetae De 3 on abd. I–III connected with tubercle De ( Fig. 8View FIGURES 1 – 10). The line of chaetae De 1 –chaeta s perpendicular to the dorsomedian line on abd. I–IV. Tubercle L on abd. III and IV with 3 and 5–6 chaetae respectively ( Fig. 5View FIGURES 1 – 10). Furca rudimentary with 7–8 microchaetae ( Fig. 7View FIGURES 1 – 10).Tubercles Di on abd. V fused, with chaetae Di 2 as Mc and Di 3 as very small mi ( Fig. 9View FIGURES 1 – 10). Chaetae L' and Vl on abd. V present. No cryptopygy. Chaetotaxy of legs as in Tab. 1 d. Tibiotarsi with chaetae B 4 and B 5 short. Claw without inner tooth.

Discussion. In general appearance (shape of dorsal chaetae, chaetotaxy of central area of head and dorsal side of thorax and abdomen), E. levantica  resembles two Spanish species, namely E. gladiolifer ( Cassagnau, 1954)  and E. alavensis ( Pozo & Simón, 1981)  . Differences beetwen E. levantica  and the outlined taxa include the number of chaetae on head tubercle (L+So) (in levantica  8, in gladiolifer  10, in alavensis  8–9), number of chaetae L on abd.

III (in levantica  3, in gladiolifer  and alavensis  4), number of chaetae L on abd. IV (in levantica  5–6, in gladiolifer  and alavensis  7), number of ordinary chaetae on tubercle (De+Dl+L) of abd. V (in levantica  5, in gladiolifer  and alavensis  6–7), number of microchetae on furca rudimentary (in levantica  8, in gladiolifer  2–4, in alavensis  6) and the lenght ratio of chaetae Di 1:Di 2:Di 3 of abd. V (in levantica  44: 11: 2, in gladiolifer  18: 10: 2, in alavensis  37: 10: 3–7, Jordana et al. 1997).

a) Cephalic chaetotaxy –– dorsal side

Tubercle Number of chaetae Types of chaetae Names of chaetae Cl 4 Ml F

Mc G

Af 10 or 11 Ml A

Mc B, (O) Mcc C, D, E Oc 3 Ml Ocm, Ocp mi Oca Di 2 Ml Di 1 Mc Di 2 De 2 Ml De 1 Mc De 2 Dl 6 Ml Dl 1, Dl 5 Mc Dl 3, Dl 4 mi Dl 2, Dl 6 (L+So) 8 Ml L 1, L 4, So 1 Mc L 2 me So 3–6

b) Cephalic chaetotaxy –– ventral side

Group Number of chaetae Vi 6 Vea 4 Vem 3 Vep 4 labium 11, 0x

c) Chaetotaxy of antennae

Segment, Group Number of chaetae Segment, Group Number of chaetae

I 7 IV Adult I instar d) Postcephalic chaetotaxy