Pseudosinella simoni, Jordana, Rafael & Baquero, Enrique, 2007

Jordana, Rafael & Baquero, Enrique, 2007, New species of Pseudosinella Schäffer, 1897 (Collembola, Entomobryidae) from Spain, Zootaxa 1465, pp. 1-14 : 13

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 ).

Figures

FIGURES 20 – 25. Pseudosinella simoni sp. nov.: 20, chaetotaxy of abdominal segment II; 21, head macrochaetotaxy; 22, labium chaetotaxy; 23, trichobothrial complex of abdominal segment IV; 24, macrochaetotaxy of abdominal segment IV; 25, distal part of leg III.