Kalanura spectabilis, Smolis, 2007

Smolis, Adrian, 2007, Kalanura-a new genus of Neanurini (Collembola, Neanuridae, Neanurinae) from Siberia, with description of four new species, Zootaxa 1511 (1), pp. 1-16 : 11-16

Kalanura spectabilis sp. nov.

Figs 22–31 , Tab. 4

Material examined. Type material. Holotype, adult female, 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, on stump

under Parmelia sulcata , 12.VIII.1977, leg. S. Stebaeva. Paratypes: adult male, 3 males and juvenile, same data as holotype. Holotype , one paratype and other material in the Department of Biodiversity and Evolutionary Taxonomy, Wrocław University ; 4 paratypes at the Moscow State Pedagogical University .

Other material. Juvenile , same place, larch forest with mosses and cowberry, on soil under Peltigera ephthosa , 12.VIII.1977, leg. S. Stebaeva. Juvenile , same place, mixed fir–larch forest, on stump under Cladonia sp. , 12.VIII.1977, leg. S. Stebaeva. Male, same place, mixed fir–larch forest, on larch stump under Evernia mesomorpha , 12.VIII.1977, leg. S. Stebaeva. Adult female, Russia, Republic of Tuva, southern slope of East Tannu–Ola Mt. Range, vicinity of Khol’–Oozhu settl. (50 0 44’ N 94 0 23’ E), alpine tundra, 2175 m a.s.l., 17.VI.1995, leg. S. Stebaeva. Adult male and juvenile, Russia, Republic of Tuva, southern slope of East Tannu–Ola Mt. Range, vicinity of Khol’–Oozhu settl., way to Kara–Khol’ lake (50 0 38’ N 95 0 19’ E), mixed pine–larch forest, 16.VII.1993, leg. S. Stebaeva.

Diagnosis. Buccal cone short. Labral chaetotaxy 4/2, 4. Mandible thin with 4 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 separate. 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 6–7 chaetae respectively. Tubercles Di on thoracic tergum V separate. Cryptopygy present.

Etymology. The name is derived from the Latin word “specto”–magnificent, admirable, noteworthy.

Description. Body length (without antennae): 0.95–1.85 mm (holotype: 1.45 mm). Habitus typical of the Neanurini ( Cassagnau 1989) . Colour of the body greyish–blue. 3+3 relatively large, dark–pigmented eyes ( Fig. 29 ).

Types of dorsal ordinary chaetae: macrochaetae Ml thickened, narrowly sheathed, distinctly serrated and apically rounded (as on Fig. 10 ); Mc and Mcc thickened, pointed or rounded at apex; mesochaetae thin and pointed.

a) Cephalic chaetotaxy.

Head. Buccal cone short. Labrum pointed, with ventral sclerifications ogival as in Fig. 23 . Labrum chaetotaxy 4/2, 4 ( Fig. 23 ). Chaetotaxy of labium as in Fig. 24 . Maxilla styliform ( Fig. 26 ), mandible thin, with two small apical and two basal teeth ( Fig. 25 ). Chaetotaxy of antennae as in Tab. 4. Apical bulb distinct, trilobed. S-chaetae subequal, long and moderately thickened. Chaetotaxy of head as in Figs 22 , 29 and in Tab. 4. Tubercles Dl, L and So separated ( Fig. 29 ). Tubercles Di and De not fused. Chaetae D absent, chaeta O present ( Fig. 29 ). Chaeta A slightly shorter than B.

Thorax, abdomen, legs. Chetotaxy of th. and abd. as in Figs 22, 27–28 , 30–31 and in Tab. 4. Tubercles Di and De on th. I not fused ( Fig. 22 ). Tubercles De on th. II and III with 4 and 5 chaetae respectively ( Fig. 22 ). Tubercle L on abd. IV with 6 chaetae ( Fig. 30 ). S-chaetae distinctly shorter than nearby macrochaetae ( Figs 22 , 31 ). Abd.V with four tubercles: 2(Di+De+Dl) and 2L ( Figs 22 , 31 ). Tubercle L on abd.V with 4–5 chaetae ( Figs 27-28 ). Weak cryptopygy ( Figs 22 , 31 ). Chaetotaxy of legs as in Tab. 4. Claw untoothed.

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

Figures

FIGURES 22–28. Kalanura spectabilis sp. nov.: 22, habitus and dorsal chaetotaxy (holotype); 23, chaetotaxy of labrum; 24, chaetotaxy of labium; 25, mandible; 26, maxilla; 27, ventral chaetotaxy of abd. V–VI; 28, tubercle L of abd. V.

FIGURES 29–31. Kalanura spectabilis sp. nov.: 29, dorsal and lateral chaetotaxy of head; 30, ventral chaetotaxy of abd. III–V; 31, dorsal chaetotaxy of abd. V–VI.

FIGURES 8–11. Kalanura compacta sp. nov.: 8, habitus and dorsal chaetotaxy (holotype); 7, dorsal chaetotaxy of th. II–III; 10, chaeta Di1 of abd. V; 11, ventral chaetotaxy of abd. III–VI.