Paleonura bilinskii Paśnik & Weiner, 2013, sp. nov.
Creators: name: Paśnik, Grzegorz
name: Weiner, Wanda Maria
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Entognatha
Collembola
Neanuridae
Paleonura
Paleonura bilinskii

description: Paleonura bilinskii sp. nov.
Figs 1–7, Tab. 1
Diagnosis. Habitus typical of the genus Paleonura (Fig. 1 and 2). Dorsal tubercles poorly developed, distinct only on posterior abdominal segments. Buccal cone elongate. Head with 2 Oc chaetae. Ant. IV with trilobed apical vesicle. Tubercles Af and CL with A, B, C, D and F, G chaetae respectively. Tubercles De on Th. II and III with 2 chaetae + S. Tubercles De on Abd. I–III with 2 chaetae + S. Tubercles De and Dl on Abd. IV separated with 2 + S and 3 chaetae respectively.
Type material. Holotype: male (E–99–1–HT), paratypes: male (E–99–1/2), 2 females (E–99–1/3–4). All deposited in the Institute of Systematics and Evolution of Animals PAS in Kraków (ISEA).
Type locality. Ecuador, El Ángel Reserve, Páramo (0°43'02,67'' N, 77°57'59,47'' W), 3600–3700 m, 6.VI.1999, in the axils of marcescent leaves of ESpeletia, Sz. Biliński leg.
Etymology. Named for Sz. Biliński who collected the specimens.
Description. Body length 2.1–2.51 mm males and 2.72–3.14 mm females. Colour white in alcohol, orange-red alive (Fig. 1). Cuticular granulation homogenous, rather fine, except for small areas around some setae. Abd. VI bilobed (Fig. 2).
Antennae shorter than head (about 3/4 of the length of head). Ant. I with 7 chaetae, Ant. II with 11 chaetae. Ant. III and IV fused dorsally, ventral separation well marked. Sensory organ on antennal segment III consisting of two small internal sensilla bent in the same direction, two almost equal, subcylindrical guard sensilla and a small ventral microsensillum. Ant. IV dorsally (Fig. 5) with ordinary chaetae and 8 thick subequal cylindrical S chaetae, two dorso-external and six dorso-internal. Ant. IV organite as a short thick rod. Apical vesicle distinct, trilobed. Ventral chaetotaxy of Ant. IV as in Fig. 6.
Eyes 2+2 large, without pigmentation. Head without well developed tubercles (Fig. 3). Ocular area with two setae. Mandible with two teeth, maxilla without lamellae, styliform. Labium with 3 distal (A, C, D), 3 basal (E, F, G) and 3 lateral chaetae (c, d, e)(Fig. 7). Head chaetotaxy as in Fig. 3 and Tab.1.
Total dorsal chaetotaxy as in Fig. 2 and Table 1. Abd. III–IV with poorly developed tubercles De. Abd. V with moderately developed tubercles De+Dl+L. Tubercles De and Dl separated on Abd. IV. Tubercles De, Dl and L fused on Abd. V on each side of axis.
Tibiotarsi I, II and III with 18, 18 and 17 chaetae respectively (chaeta M absent) (Fig. 10). Leg chaetotaxy given in Table. 1. Claw without teeth.
Ventral chaetotaxy as in Fig. 4. VT with 4+4 chaetae. Furcula vestige with 4 mesochaetae, without microchaetae. Male and female genital plates as in Figs 8 and 9 respectively. Anal tubercle with 12 chaetae and 2 microchaetae.
Remarks. Paleonura bilinSkii sp. nov. is distinguished from other species of the genus by the combination of the following characters: head with 2+2 eyes and two chaetae Oc.; tubercle Af with chaetae A, B, C and D; Ant. 4 with trilobed apical vesicle; tubercles De on Th. II and III with 3 chaetae (2 + S); tubercles De and Dl on Abd. IV separated and with 3 chaetae (2 + S); tubercle Di on Abd. V with two chaetae.
Among other Neotropical species of Paleonura with 2+2 eyes, two ocular chaetae and separated tubercles De and Dl on Abd. V, the new species most closely resembles P. daniae Palacios-Vargas & Diaz, 1992 from Cuba and P. friaSica Cassagnau & Oliveira, 1990 from Argentina. It can be distinguished from them by the trilobed apical vesicle of Ant. IV and presence of three chaetae De and Dl on Abd. IV (two in both other species). The new species differs from P. daniae also by the presence of chaeta A on tubercle Af (absent in P. daniae) and the tubercle L with three chaetae on Th. II–III and Abd. I–III (two chaetae in P. daniae), whereas from the second species it differs by the lack of chaeta E on tubercle Af (present in P. friaSica) and the presence of five chaetae L on Abd. IV (four chaetae in P. friaSica).
Cephalic chaetotaxy * tubercle poorly developed
Postcephalic, ventral and leg chaetotaxy * on each anal valvae
description: Published as part of Paśnik, Grzegorz & Weiner, Wanda Maria, 2013, Paleonura bilinskii (Collembola, Neanuridae, Paleonurini), a new species from Ecuador, pp. 295-300 in Zootaxa 3702 (3) on pages 295-299, DOI: 10.11646/zootaxa.3702.3.7, http://zenodo.org/record/224054