Theridiidae, Sundevall, 1833

Grbić, Gordana, Hänggi, Ambros & Krnjajić, Slobodan, 2021, Spiders (Araneae) Of Subotica Sandland (Serbia): Additional Arguments In Environmental Protection, Acta Zoologica Academiae Scientiarum Hungaricae 67 (1), pp. 15-61 : 36-37

Family Theridiidae

Theridion uhligi Martin, 1974

Material: 13.06.2014 M2 1f; 16.07.2014 M2 1m.

Determination: MARTIN 1974, JOCQUÉ 1977, DUMA 2008, 2009.

Global distribution: Europe.

Habitat: In dry, sandy areas, with heather or pines ( NENTWIG et al. 2020), in xerothermic grassland ( DÉJEAN 2012), the Pannonian calcareous sand steppes (cited in GAJDOŠ et al. 2019).

Note: In contrast to most known habitats, in our material, this species was found in a meadow (habitat M2). Wherever the species was found, it was captured in low numbers,

mm for A–C, 0.2 mm for D, 0.5 mm E, 1 mm for F

and it is considered a rare spider ( DUMA 2008). Determination seems to be no problem in the male but for the female there exist drawings and photos with a quite different appearance, especially for the epigyne and the form of the receptacula. We, therefore, add some photos underlying our identification ( Fig. 13 ). In Germany, the species is classified as critically endangered, but data on this species are very rare ( BLICK et al. 2016), so a thorough evaluation is difficult.

Figures

Fig. 13. Theridion uhligi, A–C male left palp, A = retrolateral, B = ventral, C = prolateral, D–E = female epigyne in clove oil, D = ventral, E = dorsal, F = male habitus. Scale bars: 0.5