Dysdera naouelae Bellvert & Dimitrov & Zamani & Arnedo 2024, sp. nov.
Creators: name: Bellvert, Adrià
name: Dimitrov, Dragomir
name: Zamani, Alireza
name: Arnedo, Miquel A.
Publisher: name: Zenodo
Year: 2024
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Dysderidae
Dysdera
Dysdera naouelae

description: Dysdera naouelae Bellvert & Dimitrov sp. nov.
urn:lsid:zoobank.org:act: 65B05A67-B976-49F1-A9E3-110A537035BE
Figs 9–14
Dysdera tartarica – Lazarov 2009: 104, figs 1–5 [misidentification].
Diagnosis
The new species is morphologically most similar to Dysdera kourosh sp. nov., Dysdera mikhailovi Fomichev & Marusik, 2021, and Dysdera sagartia Zamani, Marusik & Szűts, 2023 by the well-developed, wide and rounded crest (Figs 9–11), internal sclerite significantly wider than the exterior one, and the characteristic lateral margin of the lateral sheet (Fig. 10). The male differs by (1) the thin, well sclerotized processus-like lateral margin of the lateral sheet, almost perpendicular to the embolic division tip (Fig. 11), vs pointed backward in D. kourosh (arrowed in Fig. 20) and significantly wider in D. mikhailovi (Fomichev & Marusik 2021: fig. 46) and D. sagartia (Zamani et al. 2023b: fig. 19a), (2) the convex crest, with wider apical part (Fig. 9), vs concave at the middle in D. kourosh (Fig. 18) and wider in the basal part than in the apical part in D. mikhailovi (Fomichev & Marusik 2021: fig. 44), and (3) proximal border of the additional lateral sheet not fused with distal haematodocha (Figs 9, 11), vs fused in the other 2 species. Female differs by the curved spermatheca in dorsal view (Fig. 12), vs straight in D. mikhailovi (Fomichev & Marusik 2021: fig. 54) and the presence of a sclerotized neck in the spermatheca of D. naouelae sp. nov. (Fig. 14).
Etymology
The new species is named after Naouel El Jaarani Oualkadi, partner of the first author, for all her patience and support.
Type material
Holotype
“ TURKESTAN ” • 1 ♂; precise country, collection date and collector unknown; SMF.
Paratype
“ TURKESTAN ” • 1 ♀; precise country, collection date and collector unknown; SMF.
Comparative material examined
Dysdera tartarica Kroneberg, 1875 (Figs 15–17) KYRGYZYSTAN • 1 ♂; Jalal-Abad Region, Ferganski range, Arslanbob; 12 Jun. 1983; S.L. Zonstein leg.; NHMW.
Description
Male (Figs 9–11)
PROSOMA. 3.55 long; maximum width 2.63; minimum width 1.63. Uniformly orange-red; smooth with some small black grains mainly at front. Frontal border roughly triangular, about ½ of carapace length; anterior lateral borders convergent; rounded at maximum dorsal width, back lateral borders rounded; posterior margin narrow, straight. Eye diameters: AME 0.18; PLE 0.14; PME 0.11; AMEs on edge of the frontal border, separated from one another by about ⅔ diameter, close to PLEs; PMEs very close to one another, about ⅓ of PME diameter from PLEs. Labium trapezoid-shaped, base wider than the distal part; longer than wide at base; semi-circular groove at the tip. Sternum orange, frontally darker, becoming lighter towards the back; wrinkled; covered with setae mainly on margin.
CHELICERAE. 1.36 long, about ⅖ of carapace length in dorsal view; fang medium-sized, 0.99 long; paturon dorsal and ventral side completely covered with piligerous granulations. Cheliceral inner groove short, about ⅓ of cheliceral length; armed with three teeth and lamina at base; B> D= M; D triangular, located roughly at the centre of the groove; B close to basal lamina; M close to B.
LEGS. Front legs orange, back legs yellow. Lengths of leg segments: fe1 2.85; pa1 1.81; ti1 2.40; me1 2.65; ta1 0.67; total 10.38; fe2 2.62; pa2 1.65; ti2 2.17; me2 2.48; ta2 0.61; total 9.52; fe3 2.03; pa3 1.12; ti3 1.30; me3 1.98; ta3 0.52; total 6.94; fe4 2.74; pa4 1.40; ti4 1.93; me4 2.57; ta4 0.66; total 9.30; fe Pdp 1.67; pa Pdp 0.94; ti Pdp 0.81; ta Pdp 0.93; total 4.35; leg formula: 1>2>4>3. Leg 1 has two terminal spines on the forward margin; leg 2 two terminal spines on the forward margin. Fe3d spines in two rows; forward 2; backward 1; pa3 spineless; tb3d spines arranged in two bands; proximal 1.0.1; medial-proximal 0; medial-distal 0; distal 1.0.1; tb3v spines arranged in four bands; proximal 0.1.0; medial-proximal 1.1.0; medial-distal 0.1.0; distal 1.0.0; with two terminal spines. Fe4d spines in two rows, forward 2; backward 6-5; pa4 spineless; tb4d spines arranged in two bands; proximal 1.0.1; medial-proximal 0; medial-distal 0; distal 1.0.1; tb4v spines arranged in four bands; proximal 1.2.0; medial-proximal 1.1.0; medial-distal 0.1.0; distal 1.0.0; with two terminal spines. Dorsal side of the frontal legs smooth; ventral side of the pedipalp covered with small piligerous grains. Claws with 8 teeth or less; hardly larger than claw width.
OPISTHOSOMA. 3.76 long; cream-colored; cylindrical. Abdominal dorsal setae 0.02 long; thick, roughly straight, blunt, tip not enlarged; uniformly and thickly distributed.
PALP (Figs 9–11). T slightly shorter than ED, external distal border sloped forwards, internal one sloped backward. ED not bent, same T axis in lateral view, internal distal border not expanded. IS wider than ES, both more or less parallel; IS continuous to tip (Fig. 10). ED tip sloped towards back in lateral view. C present, long; distal end beside ED internal tip; distal border rounded, smooth, markedly expanded, perpendicular to ED (Fig. 9). AC absent. LF absent. L well developed, with a sclerotized processus-like basal lateral apophysis. LA absent. F absent. AL present, well developed; proximal border in posterior view smooth, not fused with distal haematodocha. P not fused to T (Fig. 9); lateral length from ⅔ to as long as T width; ridge present, parallel to T; not expanded, upper margin smooth; distally ridge-like expanded; posterior margin not folded.
Female (Figs 12–14) PROSOMA. 3.77 long; maximum width 2.73; minimum width 1.75. Orange, anteriorly darker, becoming lighter towards posterior. Anterior border almost round. Eye diameters: AME 0.19; PLE 0.11; PME 0.15, separated from one another by about 1 diameter and about ½ PME diameter from PLEs. Sternum uniformly orange.
CHELICERAE. 1.53 long; 1.18. Cheliceral inner groove short, about ⅓ of cheliceral length; armed with three teeth and lamina at base; B> D> M.
LEGS. Lengths of leg segments: fe1 2.74; pa1 1.81; ti1 2.17; me1 2.26; ta1 0.61; total 9.61; fe2 2.51; pa2 1.69; ti2 2.02; me2 2.19; ta2 0.55; total 8.96; fe3 1.96; pa3 1.13; ti3 1.32; me3 1.87; ta3 0.49; total 6.78; fe4 2.61; pa4 1.38; ti4 1.93; me4 2.53; ta4 0.56; total 9.01; fe Pdp 1.66; pa Pdp 0.80; ti Pdp 0.77; ta Pdp 0.94; total 4.18; leg formula 1>4> 2>3. Leg 1 one terminal spine on forward margin. Fe3d spines in one row; 3; tb3v spines arranged in three bands; proximal 1.1.1; medial-proximal 1.1.1; medial-distal 0; distal 1.0.0; with two terminal spines. Fe4d spines in two rows; forward 3-2; backward 6-5; tb4v spines arranged in four bands; proximal 1.1.1-0; medial-proximal 1.1.0; medial-distal 0.0-1.0-1; distal 1.1-0.0; with two terminal spines.
OPISTHOSOMA. 4.41 long. Abdominal dorsal hairs 0.08 long. All other somatic characters as in male.
VULVA (Figs 12–14). DA wider than long, fused to VA (Fig. 13); DF wide in dorsal view. MF margins fused, sheet-like, well developed, and completely sclerotized. VA rectangular, transparent (Fig. 14); frontal region completely sclerotized; posterior region sclerotized except for most internal area; AVD absent. S attachment projected under VA; arms as long as DA (Fig. 12), distinctly curved; tips not projected; neck as wide as arms. Laterals of TB directed forward.
Distribution
Central Asia (“Turkestan”).
Remarks
This species belongs to the aculeata group (sensu Deeleman-Reinhold & Deeleman 1988). It was erroneously recorded as Dysdera tartarica Kroneberg, 1875 by Lazarov (2009). We examined the male specimen of D. tartarica, described and depicted by Deeleman-Reinhold & Deeleman (1988), which fits the original description and the drawing of Charitonov (1956: 22, fig. 2). As clearly seen from its photographs (Figs 15–17), it is not conspecific with D. naouelae sp. nov. (Figs 9–14).
description: Published as part of Bellvert, Adrià, Dimitrov, Dragomir, Zamani, Alireza & Arnedo, Miquel A., 2024, Integrating museum collections and molecules reveals genus-level synonymy and new species in red devil spiders (Araneae, Dysderidae) from the Middle East and Central Asia, pp. 210-235 in European Journal of Taxonomy 921 (210) on pages 220-224, DOI: 10.5852/ejt.2024.921.2429, http://zenodo.org/record/10663874