New species of Pseudosinella Schäffer, 1897 (Collembola, Entomobryidae) from Spain Author Jordana, Rafael Author Baquero, Enrique text Zootaxa 2007 1465 1 14 journal article 10.5281/zenodo.176557 74c5e8f0-cda9-438e-8309-c9be1181b79f 1175-5326 176557 Pseudosinella simoni sp. nov. Figs. 20-25 , Table 3 Type material. Navacerrada, Madrid ( Spain ). Holotype : female, slide MNCN 115coll2003(4)83, captured on surface, labeled as: "Lab. Faunística Ex. Navacerrada antes albergues, Hojarasca Sarothamnus purgans y Juniperus nana micelio de hongos X-1959, 4 ojos R011/00/0201+2 Pseudosinella fallax MMrELL 2/7B1". Biotope: fungus mycelium on litter. Paratypes : slide MNCN 115coll2003(4)84 ( 1 specimen ), labeled as: "Lab. Faunística 10-1959 Ex. Navacerrada derecha carretera antes albergues Ranker mulliforme Musgos Z/ 65, 3 ojos R01?/00/0201+2 Pseudosinella fallax Börner B Z /65". Biotope: moss; slide MNCN 115coll2003(4)85 ( 3 specimens ), labeled as: "Lab. Faunística 3 ojos Pseudosinella fallax Börner 2 ejempl /00/ /10/ Navacerrada Z-7D X-1959 D"; slide MNCN 115coll2003(4)91 ( 9 specimens in a slide very damaged), labeled as: "Lab. Faunística Pueblo de Navacerrada 9.xi.1961 (16) Pseudosinella fallax Börner varios ejemplares"; slide MNCN 115coll2003(4)92 ( 5 specimens ), labeled as: "Lab. Faunística Pueblo Navacerrada 9.xi.1961 (16) Pseudosinella fallax 9-XI-61 ". Deposited in the Museo Nacional de Ciencias Naturales-CSIC ( MNCN ), Madrid ( Spain ). Other material. Slide MNCN 115coll2003(4)90 ( 3 specimens ), labeled as: " Lab.º Faunística Valsaín 26.v.1963 E (5) 3 ojos Pseudosinella fallax Börner ". Description. Maximum length 1,0- 1.3 mm ( Holotype : 1,0 5 mm ). Apparently without pigment. 3+3 eyes. Ratio antenna/cephalic diagonal 1,3 and 1,5. Antennal segments I/II/III/IV ratios 2.05/1.14/1.31/1.00 (n = 2). Sensorial seta s of the sensory organ of antennal segment III expanded (leaf shaped). Apical vesicle absent from antennal segment IV. Formula of the labial base ( Fig. 22 ): M1M2rEL1L2 (all setae ciliated except r , that is a vestigial microchaeta. Formula of the dorsal macrochaetae: R011/00/0201+2 . Anterior seta to pseudopore thoracic II absent. Abdominal tergite II chaetotaxy: - aBQ1q2 ( Fig. 20 ). B and Q as broad ciliated and pointed macrochaetae. R complex: R0 to R2 present ( Fig. 21 ). Accessory seta s in the anterior trichobothrial complex of abdominal tergite IV present ( Fig. 23 ). Seta P on abdominal tergite IV slightly anterior to the trichobothrium ( Fig. 24 ). Medial seta M1 between the trichobothria T1 and T2 ; pseudopore nearest M1 . Unguis ( Fig. 25 ) with dental plate occupying 60% of the basal internal edge; one of the basal tooth slightly bigger than the other one; medial tooth well developed, approximately 70% from base of total unguis. Unguiculus appendage acuminate with small denticles. Dorsal tibiotarsi tenent hair clavate. Legs without scales. Retinaculum with 4 + 4 teeth and one ciliated seta. Two internal and two external setae related to two distal pseudopores of manubrial plate. Mucro with distal tooth longer than the anteapical; the basal spine reaches just to the tip of the distal tooth. Etymology. The species name is dedicated to Dr. José Carlos Simón, Spanish collembologist. Discussion. P. s i m o n i sp. nov. has a unique macrochaetotaxy. The closest species with the same macrochaetae formula is: P. sexoculata Schött, 1902 (3 + 3 eyes, R011/00/0201+2 , paBQ1q2 , M 1m 2rel1l2 , accessory seta s present) ( Table 3 ).