Perscheloribates paratzitzikamaensis, 2013

Perscheloribates paratzitzikamaensis View in CoL n. sp.

( Figure 1 View FIGURE )

Diagnosis — Body size: 298 – 315 × 182 – 199. Rostrum rounded. Prodorsal setae long, setiform, barbed. Sensilli spindle-form, with short cilia. Translamellar line absent. Prolamellar lines represented by short basal part. Notogaster with nine pairs of setal alveoli and one piar ( p 1) of setae. Epimeral setal formula: 3-1-2-2. Leg claw serrate on dorsal side.

Description — Measurements. Body length: 315 ( holotype), 298 – 315 (four paratypes); notogaster width: 199 ( holotype), 182 – 199 (four paratypes).

Integument — Body color light brown. Body surface smooth.

Prodorsum — Rostrum rounded. Lamellae located dorso-laterally, as long as half of prodorsum (in lateral view), without cusps. Translamellar line absent. Prolamellar lines represented only by short basal part. Sublamellar lines distinct, long. Sublamellar porose areas ( Al) small, oval (6×4). Rostral ( ro, 41 – 49), lamellar ( le, 53 – 61) and interlamellar ( in, 65 – 73) setae setiform, barbed. Sensilli ( ss, 61 – 65) spindle-form (with well dilated head and long, thin apex), with short cilia. Exobothridial setae and their alveoli absent. A pair of elongate, narrow porose areas present (visible in dissected specimens) latero-posterior to interlamellar setae.

Notogaster — Anterior notogastral margin convex medially. Dorsophragmata ( D) of medium size, widely rounded. Nine pairs of notogastral setae represented by alveoli; one pair of thin, smooth setae present ( p 1, 24-32). Four pairs of sacculi ( Sa, S1, S2, S3) oval, with small openings.

Epimeral and lateral podosomal regions — Apodemes 1, 2, 3 and sejugal apodemes distinct. Epimeral setal formula: 3-1-2-2 ( 3c, 4c absent). Setae setiform, thin, smooth; medial setae 1a, 2a, 3a (6

– 12) shorter than others (16 – 24). Pedotecta I (Pd I) large, concave, pedotecta II (Pd II) rounded anteriorly. Discidia ( dis) poorly developed, rounded distally. Circumpedal carinae ( cp) distinct.

Anogenital region — Four pairs of genital ( g 1, 12 – 20, g 2 - g 4, 6 – 12), one pair of aggenital ( ag, 6 – 12), two pairs of anal ( an 1, an 2, 6 – 12) and three pairs of adanal ( ad 1 - ad 3, 6 – 12) setae thin, smooth. Lyrifissures iad in paraanal position.

Legs — Claw of each leg with several minute barbs on dorsally side. Formulae of leg setation and solenidia: I (1-5-3-4-19) [1-2-2], II (1-5-2-4-15) [1-1-2], III (2-3-1-3-15) [1-1-0], IV (1-2-2-3-12) [0-1-0]; homology of setae and solenidia indicated in Table 1 View TABLE .

Material examined — Holotype (female): Ec- 2 ( 1.IV.2009, collected by F. Marian and D. Sandmann). Four paratypes (all females): Ec-3 ( 1.IV.2009, collected by F. Marian and D. Sandmann).

Type deposition — The holotype is deposited in the collection of the Zoological Institute of the Russian Academy of Sciences, St. Petersburg, Russia ; two paratypes are deposited in the collection of the Siberian Zoological Museum , Novosibirsk, Russia ; two paratypes are in the personal collection of the first author.

Etymology — The prefix para is Latin meaning "near" and refers to the similarity between the new species and the species Perscheloribates tzitzikamaensis ( Pletzen, 1965) .

Remarks — In having the long notogastral setae p 1 (other setae represented by alveoli) and spindleform sensilli, Perscheloribates paratzitzikamaensis n. sp. is similar to Perscheloribates tzitzikamaensis (Plet- zen, 1965) from South Africa (see Pletzen 1965), however, it differs from the latter by smaller body size (298 – 315 × 182 – 199 versus 405 – 423 × 279 – 293 in P. tzitzikamaensis ), longer setae p 1 (considerably longer than adanal setae versus not longer in P. tzitzikamaensis ), the absence of a translamellar line (rudimentary parts of lines present in P. tzitzikamaensis ) and prolamellar lines represented only by short basal part (versus present in P. tzitzikamaensis ).

Also, in having the long notogastral setae p 1 (other setae represented by alveoli), Perscheloribates paratzitzikamaensis n. sp. is similar to Perscheloribates aculeatus ( Hammer, 1961) from Peru (see Hammer 1961), however, it differs from the latter by the spindle-form sensilli (versus fusiform in P. aculeatus ) and the rounded rostrum (versus pointed in P. aculeatus ).