Anodontophora tuvensis, Pomorski, Romuald J., 2007

Pomorski, Romuald J., 2007, Anodontophora tuvensis gen. nov. et sp. nov. (Collembola: Onychiuridae: Tetrodontophorinae), Zootaxa 1521, pp. 63-66 : 63-66

Anodontophora tuvensis sp. nov.

Figs 1-13

Description. Color uniform bluish-grey. Length of holotype (reproductive male) 1.5 mm. Body shape cylindrical, short, without anal spines ( Fig. 1 ). Granulation of body surface fine and uniform, with distinctly marked antennal bases.

Antennae nearly as long as head. Antennal segment IV with subapical organite ( Fig. 3 ). Microsensillum on antennal segment IV in latero-external position, above posterior setae ( Fig. 5 ). Subapical organite present. Antennal III sense organ consisting of 4 guard setae, 5 papillae, 2 spherical, finely granulated sensory clubs, and 2 typical sensory rods ( Figs 4 and 5 ). Antennal segment III with microsensillum slightly below antennal organ III.

A small area of finer granulation in the position of postantennal organ which is absent ( Fig. 2 ). Labial palp of type O with 9 proximal setae ( Fig. 7 ).

Pseudocellar formulae: dorsal 32/233/33332, ventral 3/000/2202; 2 pseudocelli on each of three subcoxae (arrangement of pseudocelli as in Figs 1 , 6 and 12 ). Pseudocelli well chitinised. First ventral cephalic pseudocellus located near mouth apparatus. Anterior cephalic pseudocelli arranged in a triangle, two located at antennal base, one somewhat behind submedially ( Figs 1 and 2 ). Parapseudocelli absent.

Dorsal chaetotaxy as in Fig. 1 , nearly symmetrical, poorly differentiated into apically rounded macro- and mesosetae and apically pointed microsetae ( Figs 9–11 ). Body sensilla invisible. Thoracic terga II and III with microsensilla laterally.

Ventral tube with 19+19 setae and 1+1 setae at base. Retinaculum with 3+3 teeth and without setae at base. Manubrium with numerous setae posteriorly. Dens with 1 anterior and 3 posterior setae, mucro as in Fig. 13 . Claw with inner denticle only. Empodial appendage somewhat shorter than claw, with small basal lamella ( Fig. 8 ). Tibiotarsal distal whorl with 11 setae. Male ventral organ absent.

Type material. Holotype, reproductive male (mounted on slide); Russia, southern Krasnoyarskiy Kray, Republic of Tuva, western Sayan Mts., northern slope of Oiskiy Ridge, ca 1800 m a.s.l., near Olenya Rechka, mountain tundra with Salix and Betula rotundifolia , in moss; 27 VI 1990; leg. S. Stebaeva. The holotype is in the collection of the Department of Systematic Zoology and Zoogeography, University of Wrocław.

Etymology. The species has been named after the Republic of Tuva, where the specimen was found.

Acknowledgments. I am most grateful to Sofiya K. Stebaeva (Moscow) for the specimens and my departmental colleague Andrzej ElŻanowski for editorial help. This work was supported by intramural grant 1018/S/IZ/2005.

Figures

FIGURES 1 – 5. Anodontophora tuvensis, holotype: 1, habitus and dorsal chaetotaxy; 2, the place after reduced postantennal organ and anterior cephalic pseudocelli; 3, subapical organite; 4, antennal III sense organ, sensory clubs and rods; 5 antennal segments III and IV, antennal III sense organ.

FIGURES 6 – 13. Anodontophora tuvensis, holotype: 6, chaetotaxy and localisation of pseudocelli on ventral side of head; 7, labial palp; 8, tibiotarsal chaetotaxy and claw; 9, macroseta; 10, mesoseta; 11, microseta; 12, chaetotaxy and localisation of pseudocelli on abdominal sterna I-VI; 13, mucro and dens.