Dictyna palmgreni Marusik & Fritzén 2011

Dictyna palmgreni is a spider species found in Finland and Russia.

Male. Total length 2.63-3.00. Carapace: 1.10-1.30 long, 0.88-0.95 wide, cephalic part 0.60 wide, clypeus 0.14, chelicerae 0.79. Abdomen 1.75 long, 1.20 wide. Cymbium 0.69-0.79 long, 0.40-0.43 wide, length/width ratio 1.70-1.80. Leg I segments: femur 1.17, patella+tibia 1.36, metatarsus 0.86, tarsus 0.57. Carapace brown, cephalic part raised, well separated from thoracic part by ‘furrow’, cephalic portion with 5 longitudinal ‘furrows’ with sparse whitish hairs, thoracic part with radial stripes. Abdomen light to dark brown with dark grey-brownish pattern (Figs 1, 7), somewhat variable and sometimes with cardiac mark posteriorly trifid. Palp as in Figs 18-19, 22-23, tibia short, apophysis carrying ctenidia short (about 2 lengths of ctenidia) and positioned near base of tibia; conductor in one plain, upper arm of conductor abruptly cut, lower arm with bent thin tip directed retrolaterad. Female. Total length 2.90-3.10. Carapace: 1.05-1.18 long, 0.91-0.94 wide, brown with dark-grey radial stripes, and light brown median band (behind posterior eye row). Cephalic portion with 5 longitudinal ‘furrows’ densely covered with whitish hairs. Clypeus 0.13, chelicerae 0.60. Leg I segments: femur 1.07, patella+tibia 1.14, metatarsus 0.69, tarsus 0.50. Abdomen light brownish with brown pattern as in Figs 2, 8-9, usually with cardiac mark posteriorly distinctly trifid, venter with median dark band. Epigyne as in Figs 28-30, 32-33 with thin septum and rather long margins. Vulvae with spiralled insemination ducts terminated by spiralled ‘receptacula’. ‘Receptacula’ with digitiform cylindrical accessorial gland.

The new species is known across almost the entire northern Palaearctic: from Fennoscandia to Magadan, north to 68° in Finland, and southward to about 53° in Krasnoyarsk Province of Russia. To date, there have apparently been no documented adult specimens from Sweden (L. Jonsson & R. Pettersson pers. comm.), which are needed for the confirmation of its occurrence there.