Pseudosinella valverdei Baquero & Jordana 2021, n. sp.
Creators: name: Baquero, Enrique
name: Jordana, Rafael
name: Ortuño, Vicente M.
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Entognatha
Collembola
Entomobryidae
Pseudosinella
Pseudosinella valverdei

description: Pseudosinella valverdei Baquero & Jordana n. sp.
(Figs 8G; 20; 21; 22; Table 6)
urn:lsid:zoobank.org:act: 09225770-934C-4B27-9354-D236FC3398E8
TYPE MATERIAL. — Holotype. Spain • ♀; Madrid, Sierra de Guadarrama, Montes Carpetanos, Hoya de la Laguna Grande (east); 30T4191 45213; 2049 m a.s.l.; 5.X.2015; Ortuño et al. leg.; pitfall SSD (since 3.VI.2015); MZNA SSD-10 (slide 06).
Paratypes. Spain • 10 specimens on slide and 15 in ethyl alcohol; same data as for holotype, slides‰6 and‰7; Ortuño et al. leg.; MZNA • 5 specimens on slide and 40 in ethyl alcohol; SSD-6, slides 03 and 11; same data; MZNA • 5 specimens in ethyl alcohol; SSD-6; same data; MNHN.
TYPE LOCALITY. — Spain, Madrid, Sierra de Guadarrama, Montes Carpetanos, Hoya de la Laguna Grande (east); 30 T 4191 45213; 2049 m a.s.l.
ETYMOLOGY. — This species is dedicated to the biologist Alberto Jiménez-Valverde, member of the research team of this project and active participant in the sampling of the mesovoid shallow substratum.
ADDITIONAL MATERIAL. — Spain • 2 juveniles; SSD-1 (0.5 m depth), slides 05 and 06; Sierra de Guadarrama, Segovia; Ortuño et al. leg.; MZNA • 2 specimens; SSD-2 (0.5 m depth), slide 09; same data; MZNA • 8 specimens on slide and 393 in ethyl alcohol; SSD-2 (1 m depth), slides 05, 06 and 08; same data; MZNA • 2 juveniles on slide and 56 in ethyl alcohol; SSD-16, slide 07; same data; MZNA • 1 juvenile; SSD-18, slide 07; same data; MZNA • 1 juvenile; SSD-25, slide 06; Madrid; same data; MZNA • 10 specimens on slide and 1103 in ethyl alcohol; SSD-11, slides 05-07; same data; MZNA • 7 juveniles on slide and 589 in ethyl alcohol; SSD-21, slides 03 and 05; same data; MZNA.
DIAGNOSIS. — Body with blue pigment, including antennae and first leg segments. Head with 5+ 5 eyes (A-E); A 0, A 2 and A 3 as Mc, A 2a absent; basomedian labial fields chaetae smooth; posterior labial row with M 1, m 2, R*, e, l 1 and l 2 Mc (R half to two-thirds of M; sometimes M 2 and L 2 ciliated, and usually asymmetric); three plus one anterior postlabial chaetae as ciliate Mc. Th II-III without Mc; Abd II with chaeta a 2p present, a 3 forward from ‘as’ sensilla; a 2 as mes or short Mc, and m 3 as ciliated Mc; AbdIV with three median mac (C 1, B 5-6), four ciliated mic behind anterior bothriotrichum and bothriothrichal complex mic D 1p present; claw with four internal teeth: two basal and two unpaired (the last one sometimes almost imperceptible); empodium acuminate; manubrial plate with three internal and 10-13 external chaetae.
DESCRIPTION
Body
Body length up to 2.40 mm, head included (mean 2.05 mm, n = 11 adults), excluding antennae (holotype: 2.05 mm). Color blue dark, especially on Ant I-IV (except tip of IV), anterior part of the head, and posterior area of the tergites Th II- AbdVI), coxae, and basal manubrium; Th II darker in front area (Fig. 8G). Scales absent on antennae and legs, present on ventral and dorsal head, thorax and abdomen dorsally, and furcula only ventrally.
Head
Antennal head ratio 1.65 (n= 6). Ant III sense organ with two rod-shaped sensilla (individually encased in a pit), three spiny guard sensilla, s-blunt sens, ciliated and weakly ciliated chaetae; on Ant II 2-3 distal similar to Ant III sensilla; Ant IV without apical bulb, apical organite and accessory sensilla as in Figure 20A. 5 + 5 eyes (A-E). Head dorsal chaetotaxy with 8-12 antennal (An) ciliated Mc; s or t and p chaetae present (p as Mc); 4/554 smooth prelabral and labral chaetae (Fig. 20B). Labral papillae absent. Maxillary palp bifurcate with three smooth sublobal chaetae. Labial papilla (l.p.) E with finger-shaped process reaching the base of apical appendage. Labial row with M 1, m 2, R*, e, l 1 and l 2 Mc (R half to two-thirds of M; sometimes M 2 and L 2 ciliated, and usually asymmetric). Postlabial chaetotaxy with 3+ 1 ciliated central Mc along the groove (Fig. 20C).
Thorax chaetotaxy (Fig. 21)
Th II and Th III without Mc; Th II with s and ms in anterolateral position; Th III with a1 before psp, a 3, a 4, a 6, m 2, m 4, m 5 and m 6, p 2, p 3, p 4, p 5 and p 6, two lateral mes with the lateral sensilla (s) between them, and four Mc in front of the sensilla.
Abdomen chaetotaxy (Figs 21; 22)
Abd I with a 1, a 2 and p 1 before psp; a 3, a 4, a 6, m 2, m 4 -m 6; p 1 -p 6, a sensilla in front of m 6, and some lateral mes. Abd II, mi and ml chaetae present over bothriotrichum (m 2) (sometimes an additional mic between ml and a 2); a 2p (p) present as slightly ciliated mic; a 2 (A) as small Mc or mes, but not mic; m 3 (B) present as Mc; ‘as’ over m 3 and a 2, and a 3 a little above ‘as’; m 3e and p 4 (q 1 and q 2) present as slightly ciliated mic; lm and ll present as slightly broadened at tip ciliated mic over bothriotrichum (a 5); m 4 as slightly ciliated chaeta; m 5 as mes. a 6 (smooth), a 7-8, m 6, p 5 -p 8 (slightly ciliated) as mic; Abd III, mi, ml and a 2 as slightly broadened ciliated mic over bothriotrichum (m 2); ‘as’ before m 3 that is apparently smooth; a 3, m 4 and p 3 as slightly ciliated pointed mic; a 3 very up; im, li, lm and a 6 as ciliated pointed mic surrounding bothriotrichum (a 5); em, am 6 and a 7 as small ciliated mic under a 5 bothriotrichum (sometimes an additional mic near a 7); pm 6 and p 6 as Mc with d 3 between them (d 3 not always present, and duplicated in one specimen); ‘ms’ (d 2) near p 5 as smooth mic; m 7a and p 8 as mes; m 7 -m 9, p 7 and p 9 as smooth mic. Abd IV with three median mac (C 1, B 5-6; ratio between C 1 -B 5 /B 5-6 1.00, n =9), and 7 lateral mac (D 3, E 2-4, F 1-3); T 5 as mic, D 2, De 3, E 4p, F 3p,T 6 and T 7 as mes; before T 2 bothriotrichum four ciliated mic (a, m, s and D 1) as in Figure 22; pi and pe as ciliated fan-shape mic.
Legs
Legs without scales. Trochanteral organ with near 40 spinelike chaetae. Claw with four teeth on inner edge: basal pair at 40% and 50% with respect to the internal claw edge length, respectively, first unpaired median at 70%, and one minute (sometimes imperceptible) unpaired subapical at 90%; two lateral teeth at 20%, and one more basal dorsal tooth. Empodium acuminate, all with non-serrated pe lamella (but with a small tooth on first third of all legs, and a minute serration on legs 1 and 2), other lamellae smooth (ae, ai, pi); claw: empodium ratio=1: 0.65.Tibiotarsus III distally with one inner smooth chaeta 0.50 longer than claw; tenent hairs capitate, smooth, and 0.90 shorter than claw (Fig. 20E).
Furcula
Manubrium and dens with scales only ventrally, and with the same length; manubrial plate (dorsally) with three internal, approximately thirteen external ciliated Mc, and 2 psp (Fig. 20D). Non-ringed area of dens 2-3.5 times the length of mucro, with subapical tooth a little smaller than apical tooth (Fig. 20F).
Macrochaetotaxy
Reduced formula (from Gisin 1965, 1967a, b): R 0 R 1 R 2000 /00/0201+2/s, pABq 1 q 2, M 1 m 2 R*el 1 l 2 (* ½ to 2/3 of M; sometimes M 2 and L 2 ciliated, and usually asymmetric).
ECOLOGY
Species widely distributed in MSS of Montes Carpetanos and Siete Picos-La Mujer Muerta, not detected in Cuerda Larga (Fig. 1 A-C). According to the available data (presence and activity), it appears to show a preference for the subsoil of the oro-Mediterranean zone, with dominance in the forest strip. Its presence in the cryo-Mediterranean zone has not been verified and the upper level of this species is 2049 m a.s.l., which corresponds to SSD-10 installed in the Canchal Hoya de la Laguna Grande (supraforestal strip of the oro-Mediterranean zone). Its greatest activity was recorded in SSD- 11 in the Canchal Cerro Ventoso (Fig. 4E, F), exceeding a thousand specimens (more than half of the Entomobryomorpha, excluding Orchesella, collected there (Fig. 1E). The MSS of this site, under the narrow influence of the pine forest (Pinus sylvestris), has revealed itself as one of the most diverse in Collembola, as it contains eight species of Entomobryomorpha (excluding Orchesella), with P. valverdei Baquero & Jordana n. sp. as the dominant species (Figs 1F; 4F).
REMARKS
The species that share the traditional formula of Gisin (1965, 1967a, b) are, in addition to P. gonzaloi Baquero & Jordana n. sp., P.styriaca Neuherz & Nosek, 1975, P. subcentralis Gama, 1985 and P. valverdei Baquero & Jordana n. sp. Table 6 shows the differences between these four species.
In terms of activity, P. valverdei Baquero & Jordana n. sp. is the fourth best represented species of Entomobryomorpha (excluding Orchesella) in the MSS, with 11% (Fig. 1D), and Entomobryidae with 12% (Fig. 2A, B).
description: Published as part of Baquero, Enrique, Jordana, Rafael & Ortuño, Vicente M., 2021, Distinctive Collembola Communities in the Mesovoid Shallow Substratum: Entomobryomorpha of the Sierra de Guadarrama National Park (Central Spain), pp. 37-78 in Zoosystema 43 (3) on pages 69-72, DOI: 10.5252/zoosystema2021v43a3, http://zenodo.org/record/4487162