Kalanura babenkoi Smolis 2007, sp. nov.

Kalanura babenkoi sp. nov.

Figs 1–7, Tab. 1

Material examined. Type material. Holotype, adult female on slide, Russia, Putorana Plateau, Dynkenda Mts., Yt –kyuel (Sobach’e) lake vicinity, sedge bog, 600 m a.s.l., 23.VII.1996, leg. A. Babenko. Paratypes: 3 juveniles on slide, same data as holotype; 3 juveniles on slide, same place, Dryas punctata association, 900 m a.s.l., 8.VIII.1996, leg. Makarova and A. Babenko. Holotype, 3 paratypes and other material in the Department of Biodiversity and Evolutionary Taxonomy, Wrocław University; 3 paratypes at the Moscow State Pedagogical University.

Other material. 2 juveniles on slide, same locality, larch forest with Betula nana, Alnus sp. and Vaccinium uliginosum, 450 m a.s.l., 9.VIII.1996, leg. A. Babenko. Female on slide, same locality, stony river bed, herbaceous association, 100 m a.s.l., 9.VIII.1996, leg. A. Babenko. 2 adult females on slide, Russia, Putorana Plateau, Dynkenda Mts., Yt–kyuel (Sobach’e) lake, (68 0 08’ N 91 0 50’ E), R 53/97, alder forest near lake bank, under tree bark, forest belt 60 m a.s.l., 27.VII.1997, leg. A. Babenko. Juvenile on slide, same place, R 65/96, Dryas punctata association, pitfall–traps, 600 m a.s.l., 25.07– 13.VIII.1996, leg. A. Babenko. 4 juveniles, male and adult female on slide, same place, F04/96, clearing in fir forest, cover of lichens and mosses on stones, 150 m a.s.l., 9.VIII.1996, leg. A. Babenko. Adult female and male on slide, Russia, Republic of Khakasiya, Kuznetsky Ala–Tau Mt. Range, vicinity of Komunar settl., (54 0 21’ N 89 0 17’ E), mixed pine–fir–larch forest, lower part of slope, under Pinus sibirica, 1500 m a.s.l., 20.VIII.1974, leg. S. Stebaeva. Adult female on slide, Russia, South of Taimyr Peninsula, upper current of Nizhnyaya Agapa river, Ladannakh lake, (70 0 05’ N 87 0 26’E), R 79/99, alder bushes, 23.VII.1999, leg. A. Babenko. 2 juveniles and female on slide, same place, R 5/ 99, zonal tundra, 4.VII.1999, leg. A. Babenko. Adult female and juvenile on slide, same place, R 114/99, depression between meadows, mosses, 5.VIII.1999, leg. A. Babenko. 2 juveniles on slide, same place, R 139/ 99, under bark of larch, 11.VIII.1999, leg. A. Babenko. Adult female on slide, Russia, north–western part of Tuva republic, Khemchiksky Mt. Range, vicinity of Sut–Khol’ lake, (51 0 31’ N 91 0 12’ E), moss–lichen tundra, 20.VII.2001, leg. S. Stebaeva. Male on slide, Russia, Republic of Tuva, northern slope of East Tannu–Ola Mt. Range, vicinity, of Shuurmak settl., (50 0 38’ N 95 0 19’ E), mixed fir–larch forest, 1427 m a.s.l., on tree trunk under Parmelia sulcata, 12.VIII.1997, leg. S. Stebaeva. Female and juvenile on slide, Russia, Krasnoyarskii Kray, 70 km from Nazarovo, vicinity of Zakharinka settl., (56 0 01’N 89 0 51’ E), pine forest (Pinus sylvestris), litter, 20.VII.1986, leg. S. Stebaeva. 3 juveniles on slide, Russia, Kemerovo province, Shoria Mts, vicinity Kuzedeyevo settl., reserve “Lipovyi Ostrov”, (53 0 19’ N 87 0 10’ E), 22.XII.1995, leg. O. Berezina.

Diagnosis. Buccal cone elongated. Labral chaetotaxy 4/2, 4. Mandible thin with 3 teeth. Head with 3 chaetae Oc, chaetae A, B, C, D, E and O. Tubercles Dl, L and So with 6, 4 and 6 chaetae respectively. Tubercles Di and De on thoracic tergum I fused. Tubercles De on thoracic terga II and III with 4 and 5 chaetae respectively. Tubercles L on abdominal terga III and IV with 4 and 7–8 chaetae respectively. Tubercles Di on thoracic tergum V separate. Cryptopygy absent.

Etymology. The new species is dedicated to Dr. Anatoly Babenko, Russian collembologist, ecologist and taxonomist, the World specialist in Arctic Collembola.

a) Cephalic chaetotaxy.

Description. Body length (without antennae): 0.6–2.37 mm (holotype: 1.75 mm). Habitus typical of the Neanurini (Cassagnau 1989). Colour of the body greyish-blue. 3+3 relatively large, dark–pigmented eyes (Figs 1, 5).

Types of dorsal ordinary chaetae: macrochaetae Ml thickened, narrowly sheathed, distinctly serrated and apically pointed or rounded (Fig.); Mc and Mcc thickened, pointed or rounded at apex; mesochaetae thin and pointed.

Head. Buccal cone short and rounded at apex. Labrum chaetotaxy 4/2, 4 (Fig. 3), ventral sclerifications as in Fig. 2. Chaetotaxy of labium as in Fig. 2 and in Tab. 1. Maxilla styliform, mandible thin and tridentate. Chaetotaxy of antennae as in Tab. 1. Apical bulb distinct, trilobed. S-chaetae subequal, long and moderately thickened. Chaetotaxy of head as in Figs 1–2, 5 and in Tab. 1. Tubercles Dl, L and So separated (Figs 1, 5). Tubercles Di and De not fused. Chaeta O present, chaetae D, E and Di2 free (Figs 1, 5). Chaeta A shorter than B.

Thorax, abdomen, legs. Chaetotaxy of th. and abd. as in Figs 1, 4–7 and in Tab. 1. Tubercles Di and De on th. I fused (Figs 1, 5). Tubercles De on th. II and III with 4 and 5 chaetae respectively (Figs 1, 5–6). Tubercle L on abd. IV with 7–8 chaetae, two chaetae free (Fig. 4). S-chaetae shorter than nearby macrochaetae. Tubercles Di on abd. IV–V separated along midline and not fused with other tubercles. Chaetae Vl and L’ on abd. V present (Fig. 4). Cryptopygy absent (Figs 1, 7). Chaetotaxy of legs as in Tab. 1. Claw untoothed.

Discussion. The new species is most similar to Kalanura stebaevae sp. nov. (described below), and differences between them are given in the key.