Dysdera shardana Opatova & Arnedo 2009

Dysdera shardana es una especie de arañas araneomorfas de la familia Dysderidae.​

Dysdera shardana là một loài nhện trong họ Dysderidae.

Loài này thuộc chi Dysdera. Dysdera shardana được miêu tả năm 2009 bởi Opatova & Arnedo.

Description. Holotype male num. CRBA 1246. Figs 5, 7, 9, 19-22. Carapace (Fig. 5) 3.01 mm long; maximum width 2.35 mm; minimum width 1.68 mm. Dark red, darkened at borders; foveate at borders, slightly wrinkled in the middle, covered with small black grains. Frontal border roughly round, from 1/2 to 3/5 carapace length; anterior lateral borders parallel; rounded at maximum dorsal width, back lateral borders straight; back margin wide, straight. AME diameter 0.18 mm; PLE 0.18 mm; PME 0.16 mm; AME slightly backwards from frontal border, separated from one another by about 2/3 diameter, close to PLE; PME close to each other, less than 1/4 PME diameter from PLE. Labium trapezoid-shaped, base wider than distal part; longer than wide at base; semicircular groove at tip. Sternum brownish orange, darkened on borders; wrinkled; uniformly covered in slender black hairs.
Chelicerae 1.2 mm long, about 2/5 of carapace length in dorsal view; fang long, 1.22 mm; basal segment proximal dorsal, ventral side scantly covered with piligerous granulations; concave-shaped in lateral view (Fig. 7). Chelicera inner groove long, about 1/2 cheliceral length; armed with three teeth and lamina at base; B=M>D; D triangular, slightly below groove midpoint; B close to basal lamina; M close to B. Legs yellow. Lengths of male described above: fe1 2.3 mm (all measurements in mm); pa1 1.3; ti1 1.84; me1 1.66; ta1 0.48; total 7.57; fe2 2.09; pa2 1.22; ti2 1.71; me2 1.58; ta2 0.51; total 7.11; fe3 1.58; pa3 0.87; ti3 1.07; me3 1.43; ta3 0.41; total 5.31; fe4 2.09; pa4 1.17; ti4 1.68; me4 1.89; ta4 0.51; total 7.34; fe Pdp 1.22; pa Pdp 0.66; ti Pdp 0.66; ta Pdp 0.71; total 3.26; relative length: 1>4>2>3. Spination: leg1, leg2 spineless; fe3d spineless; pa3 spineless; tb3d spines arranged in two bands; proximal 1.0.0; distal 1.0.0; tb3v spines arranged in one band; proximal 0.1.0; with one prolateral spine on left leg, and two terminal on right leg. Fe4d spineless; pa4 spineless; tb4d spines arranged in two bands; proximal 1.0-1.1; distal 0.0.0-1; tb4v spines arranged in one band; proximal 0.1.0; with two terminal spines. Dorsal side of frontal legs, ventral side of palp covered with hairs. Claws with eight teeth or less; hardly larger than claw width.
Abdomen 3.26 mm long; cream-coloured; cylindrical. Abdominal dorsal hairs 0.13 mm long; thin, curved, not compressed, pointed; uniformly thickly distributed.
Male copulatory bulb (Fig. 9) T slightly shorter than DD; external, internal distal border sloped backwards. DD bent about 45o in lateral view; internal distal border not expanded. IS, ES equally developed; IS truncated at DD middle part. DD tip (Figs 19-21) straight in lateral view; AR present, parallel to DD; finger-like distal projection at AR retrolateral side, shorter than AR length. C absent. AC absent. LF absent. L reduced to distal part. LA absent. F absent. AL absent. P (Fig. 22) fused to T; sloped forming an angle of about 135° to T in lateral view; lateral length about 1/4 of T width; ridge present, parallel to T; not expanded, upper margin smooth; not distally projected; back margin slightly folded towards internal side.
Paratype female num. CRBA 1246. Figs 12-13. All characters as in male except: Carapace 3.19 mm long; maximum width 2.55 mm; minimum width 1.68 mm. AME diameter 0.18 mm; PLE 0.19 mm; PME 0.16 mm; AME slightly back from frontal border, separated from one another by about 2/3 diameter, touching PLE; PME very close to each other, less than 1/4 PME diameter from PLE. Sternum very slightly wrinkled, mainly between legs and frontal border.
Chelicerae 1.38 mm long; fang 1.48 mm; basal segment proximal dorsal side scantly covered with piligerous granulations. Chelicera armed with three teeth and lamina at base; M>B=D. Legs orange. Lengths of female described above: fe1 2.22 mm (all measurements in mm); pa1 1.35; ti1 1.73; me1 1.58; ta1 0.46; total 7.34; fe2 2.04; pa2 1.28; ti2 1.68; me2 1.53; ta2 0.48; total 7.01; fe3 1.66; pa3 0.92; ti3 1.15; me3 1.38; ta3 0.41; total 5.51; fe4 2.27; pa4 1.22; ti4 1.79; me4 1.89; ta4 0.48; total 7.65; fe Pdp 1.17; pa Pdp 0.61; ti Pdp 0.61; ta Pdp 0.71; total 3.11; relative length 4>1>2>3. Spination: tb3d spines arranged in two bands; proximal 1.0.0; distal 1.0.0; tb3v with two terminal spines. Tb4d spines arranged in one band; proximal 1.0.1; tb4v spines arranged in one band; proximal 0.1.0; with two terminal spines.
Abdomen 4.56 mm long. Abdominal dorsal hairs 0.14 mm long; medium-sized, curved, compressed, pointed; uniformly, thickly distributed. Vulva (Figs 12-13) DA clearly distinguishable from VA; DA slightly wider than long; DF wide in dorsal view. MF margins not fused, poorly developed, membranous (Fig. 12). VA rectangle-like, pointed expansion at middle frontal part (Fig. 13); frontal region completely sclerotized; posterior region internal margin sclerotized, forming two divergent stripes; AVD absent. S attachment not projected under VA; arms as long as DA, slightly curved; tips not projected; neck hardly visible. TB usual shape.

Distribution. Known from several localities around the western half of Sardinia, and also in the Gennargentu region on the central-eastern side of the island, spanning from 360 to above 1100 m elevation.