Eukoenenia patrizii subsp. iberica Barranco & Mayoral, 2014, ssp. nov.
Creators: name: Barranco, P.
name: Mayoral, J. G.
Publisher: name: Zenodo
Year: 2014
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Palpigradi
Eukoeneniidae
Eukoenenia
Eukoenenia patrizii
Eukoenenia patrizii iberica

description: Eukoenenia patrizii iberica ssp. nov.
(Figs. 1 –11, Table 1)
Material examined. Holotype ♂, Cova dels Encenalls [UTM 31TBE 638803], Sant Mateu, Castellón, Spain, 21- III-2003, leg. S. Montagud. Deposited in Museo Nacional de Ciencias Naturales de Madrid (MNCN 20.02/17285).
FIGURES 8–11. Eukoenenia patrizii iberica ssp. nov., holotype. 8, basitarsi 3–4, leg I; 9, basitarsus, leg IV; 10, opisthosoma, ventral view (setae a1–4 foreshortened); 11, male genital region. Scale bars: 8 = 200 µm; 9–11 = 100 µm.
Description of male. Total length (without flagellum) 1841 µm. Prosoma. Frontal organ with 2 granulated branches and pointed tips, each 1.3 times longer than wide (Fig. 1). Lateral organ with 11 blades, each granulate and distally pointed (Fig. 2). Propeltidium with 10 + 10 setae. Metapeltidium with 3 + 3 setae. Hand of chelicera with 6 dorsal and one ventral seta, each finger with 9 teeth. Sternum with 10 deuto-tritosternal setae, two of them smaller than the others. Chaetotaxy of coxae: pedipalp with 17 setae; coxa I with 14 setae, coxa II with 16 setae, 11 normal + 5 thick, coxa III with 16 setae, 7 normal + 9 thick, coxa IV with 15 setae, 7 normal + 8 thick (Figs 3–7). Leg I: basitarsus 3 with 3 setae, (Fig. 8) (this segment was damaged in the mounting process; drawing was made beforehand); Ibta4 with one trichobothrium, five long, thin setae and one forked seta at distal end. Leg IV: basitarsus 4 with 7 setae (2 esd, 2 esp, gla, grt and r) (Fig. 9), bta / ti 0.91; seta r more than 2.5 times shorter than dorsal edge of segment (268/108 µm, t / r = 2.48) and inserted slightly beyond the middle of the segment; esp setae inserted about 1/3 from base; gla inserted more or less at the same level as grt. Opisthosoma: Tergites II–VI with 3 + 3 setae each, two setae t and one slender lateral seta s on each half; tergite VII–VIII with 2 + 2 (a single t and s seta on each side). Sternites II–III each with 2 + 2 setae. Sternites IV–V with 6 + 6, inner ones (a1, a2, a3, a4) shorter than the others (s1,s2). Sternite VI with 5+4 setae. Sternites VII with 3 + 3 slender setae (Fig. 10). Segments VIII–XI with 9, 8, 8 and 8 setae, respectively. Total length of pedipalp, 1501; total length of Leg IV, 1455.
Genital region of the male (Figs. 11): With 3 pairs of lobes and a total of 42 setae. First lobe short and broad, continuous and without medial cleavage; 13 + 13 setae in four rows, first row 2 + 2 (ventrals), second row 4 + 4, third row 4 + 4, fourth row 3 + 3 (1 seta + 2 fusules at each side). Fusules long, close to each other, dilated in first 2/3 and setulose in last 1/3. Second lobe large, end thin and pointed, with 5 + 5 setae (a, b, c, c ′, d); third lobe with large, pointed apex, with 3 + 3 setae (x, y, z).
Female. Unknown.
Remarks. The chaetotaxy, shape of genital lobes and the morphometric data of this male resemble those of the male of E. patrizii Condé, 1993, described from Sardinia (Condé 1993). However, we found some differences between them that justify the recognition of a new subspecies for the male from Cova dels Encenalls.
The ventral chaetotaxy on segments IV–V is identical in the two subspecies, but E. patrizii patrizii carries 2+2 setae on tergites II–V, whereas the new subspecies carries 3+3. E. patrizii iberica ssp. nov. has (5+4) setae on sternite VI, whereas E. patrizii patrizii has (6+6). E. patrizii iberica s sp. nov. has 8, 8, 8 setae on segments IX, X and XI, while E. patrizii patrizii has 6, 6, 8. The fact that the new subspecies carries three setae on each side on tergites II–V is quite significant: there are only two taxa of palpigrades with a dorsal chaetotaxy of 2+2, namely E. patrizii patrizii and E. gasparoi. In E. patrizii patrizii, both pairs of setae are of equal length on tergite II; but the external pair on tergites III–V is thinner than the medial pair and about half its length (Condé 1956). E. gasparoi carries a pair of medial t3 setae between the s setae (Condé 1988).
In the new subspecies setae r and grt on btaIV are longer than those of the male of E. patrizii patrizii (r 108 vs. 87; grt 170 vs. 132). In addition, the Spanish male carries 11 blades in the lateral organ, as opposed to 8–10 in in E. patrizii patrizii (Condé 1956; Condé 1993). Both subspecies lack w setae on the third lobe of the genitalia.
description: Published as part of Barranco, P. & Mayoral, J. G., 2014, New palpigrades (Arachnida, Eukoeneniidae) from the Iberian Peninsula, pp. 544-562 in Zootaxa 3826 (3) on pages 545-548, DOI: 10.11646/zootaxa.3826.3.6, http://zenodo.org/record/226705