Kalanura compacta, 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 : 6-8

Kalanura compacta sp. nov.

Figs 8–13 , Tab. 2

Material examined. Type material. Holotype, adult male on slide, Russia, Kemerovo province, Shoria Mts, vicinity Sheregesh settl., (52 0 57’ N 88 0 01’ E), fir forest, litter (0–3 cm), 24.XII.1964, leg. S. Stebaeva. Paratypes: 2 adut males and 2 males on slides, same data as holotype . Holotype, 3 paratypes and other material in the Department of Biodiversity and Evolutionary Taxonomy, Wrocław University ; 1 paratype at the Moscow State Pedagogical University .

Other material. Adult female and male on slide, Russia, Krasnoyarskii Kray , mouth of Nizhnyaya Tunguska river, vicinity of Turukhansk (65 0 47’ N 87 0 57’ E), R42 /03, under bark of fallen aspen, 01.VIII.2003, leg. A. Babenko.

Diagnosis. Buccal cone elongated. Mandible thin. Head with 3 chaetae Oc, chaetae A, B, C and E. Tubercles Dl, L and So with 6, 4 and 6 chaetae respectively. Tubercles Di and De on thoracic tergum I partially fused. Tubercles De on thoracic terga II and III with 3 and 4 chaetae respectively. Tubercles L on abdominal terga III and IV with 4 and 7 chaetae respectively. Tubercles Di on thoracic tergum V fused. Cryptopygy present.

Etymology. The name is derived from the Latin word “compingo”–fuse, consolidate. It refers to the fusion of tubercles on thoracic tergum V.

Description. Body length (without antennae): 1.35–2.2 mm (holotype: 1.65 mm). Habitus typical of the Neanurini ( Cassagnau 1989) . Colour of the body greyish–blue. 3+3 relatively large, dark–pigmented eyes ( Figs 8 , 13 ).

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

Head. Buccal cone short and rounded at apex. Chaetotaxy of labium and labrum difficult to recognize. Maxilla styliform, mandible thin. Chaetotaxy of antennae as in Tab. 2. Apical bulb distinct, trilobed. S-chaetae subequal, long and moderately thickened. Chaetotaxy of head as in Figs 8 , 13 and in Tab. 2. Tubercles Dl, L and So separated ( Figs 8 , 13 ). Tubercles Di and De not fused. Tubercle De with 3 chaetae (De1, De2 and Di2). Chaetae O and D absent ( Figs 8 , 13 ). Chaeta A shorter than B.

Thorax, abdomen, legs. Chaetotaxy of th. and abd. as in Figs 8–13 and in Tab. 2. Tubercles Di and De on th. I partially fused ( Figs 8 , 13 ). Tubercles De on th. II and III with 3 and 4 chaetae respectively ( Figs 8–9 ). Tubercle L on abd. IV with 7 chaetae, one chaeta free ( Fig. 11 ). S-chaetae distinctly shorter than nearby mac- rochaetae ( Figs 8, 9 ). Tubercles Di on abd. IV not fused. All tubercles on abd. V fused ( Figs 8 , 12 ). Chaetae Vl and L’ on abd. V present ( Fig. 11 ). Strong cryptopygy ( Figs 8, 11 ). Chaetotaxy of legs as in Tab. 1. Claw untoothed.

Discussion. The new species is similar to Kalanura spectabilis sp. nov. (described below), and their differences are indicated in the key.

a) Cephalic chaetotaxy.

Figures

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.

FIGURES 12–13. Kalanura compacta sp. nov.: 12, dorsal chaetotaxy of abd. V–VI; 13, dorsal chaetotaxy of head and th. I.