Pseudosinella tietarensis Jordana & Baquero, 2007, sp. nov.
Creators: name: Jordana, Rafael
name: Baquero, Enrique
Publisher: name: Zenodo
Year: 2007
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Entognatha
Collembola
Entomobryidae
Pseudosinella
Pseudosinella tietarensis

description: Pseudosinella tietarensis sp. nov.
Figs 7-12, Table 3
Type material. Santa María del Tietar, Ávila (Spain). Holotype: male, slide MNCN 115coll2003(4)79, captured on surface, labeled as: "Zool. Suelo Santa María del Tietar La Canaleja (9-2) 7.vi.1982 Castañar quemado 1978 suelo -5 a -10 cms R01048 Pseudosinella fallax ". Paratypes: 1 female in the same slide as holotype; slide MNCN 115coll2003(4)82 (1 specimen), with the same information as holotype; slides MNCN 115coll2003(4)80 (3 specimens) and 81 (3 specimens), labeled as: "Zool. Suelo Santa María del Tietar La Canaleja (9-1) 7.vi.1982 Castañar quemado 1978 resto gramineas y suelo -2 a -5 cms R01047 Pseudosinella ". Biotope: grass and soil in a chestnut burning grove. Deposited in the Museo Nacional de Ciencias Naturales-CSIC (MNCN), Madrid (Spain).
Other material. Slide MNCN 115coll2003(4)86 (1 specimen), labeled as: "Zool. Suelo Piedralaves Adrado? 7.vi.1982 6 requemado 1978 y 1980 0-2 cms R01037 1 Pseudosinella "; slide MNCN 115coll2003(4)87 (1 specimen), "Zool. Suelo Piedralaves Adrado? 7.vi.1982 (6-1) 2-4 cms quemado 1978 y 1980 R01038 1 Pseudosinella "; slide MNCN 115coll2003(4)88 (3 specimens), "Zool. Suelo Piedralaves Las Rasillas 7.vi.1982 (8-1) No quemado P. pinea sotobosque aclarado 1,5-4,5 cms R01043 3 Pseudosinella ". Biotope: the word "quemado" or "requemado" means burning.
Description. Maximum length 0,7-1.0 mm (Holotype: 0,68 mm). Apparently without pigment. 3+3 eyes. Ratio antenna/cephalic diagonal 1,3 and 1,4. Antennal segments I/II/III/IV ratios 1/1,42/1,29/2,38. Sensorial setae s of the sensory organ of antennal segment III short and expanded (leaf shaped), with two sensilla on antennal segment II (Fig. 12). Apical region of the antennal segments II and III, with a pseudopore in an internal-ventral position, far from the setae line. Apical vesicle absent from antennal segment IV.
Formula of the labial base (Fig. 9): M1M2rEL1L2 (all setae conspicuously ciliated except r, that is a vestigial microchaeta).
Formula of the dorsal macrochaetae: R011/10/0101+2. Anterior seta to thoracic II pseudopore absent. Abdominal tergite II chaetotaxy: -aBq1q2 (Fig. 7), a as a ciliated microchaeta. In the R complex R0 to R2 are present (Fig. 8). Accessory seta s in the anterior trichobothrial complex of abdominal tergite IV is present (Fig. 10). Seta P on abdominal tergite IV located slightly anterior to the trichobothrium, half of the length of M1 and as ciliated mesochaeta (Fig. 10). Medial seta M1 located at the level of the trichobothrium T2 and pseudopore almost at the same level than M1.
Unguis (Fig. 11) with dental plate occupying 50% of the basal internal edge; basal teeth of similar size, medial tooth well developed, approximately 65-70% from base of total unguis. Unguiculus appendage acuminate, always with a first developed external tooth and a second tooth or, sometimes, a more or less slightly developed serrated lamina. Tibiotarsi with clavate tenent hair. Legs without scales. Retinaculum with 4 + 4 teeth and one ciliated seta. Two internal and two to three external setae related to two distal pseudopores of manubrial plate. Mucro with distal tooth equal than the anteapical; the basal spine reaches just to the tip of the first tooth.
Etymology. The species name is referred to the locality: Valle del Tietar.
Discussion. P. tietarensis sp. nov. has the same chaetotaxy formula that P. cordobensis Simón et al., 1987 and P. a r re t z i Simón, 1981, that have the unguiculus smooth and with a big single teeth respectively; the new species has two teeth. In addition P. cordobensis has seta a from second abdominal segment smooth, four internal teeth on the unguis (the first single tooth at 74% from the basis), and without ungual wing tooth (Simón et al., 1987). P. a r re t z i has different unguiculus shape (Table 3).
description: Published as part of Jordana, Rafael & Baquero, Enrique, 2007, New species of Pseudosinella Schäffer, 1897 (Collembola, Entomobryidae) from Spain, pp. 1-14 in Zootaxa 1465 on pages 7-9, DOI: 10.5281/zenodo.176557