Unknown.
Vulva: spermathecae globular, clearly visible through the cuticula, median duct broad, about 0.25 times the width of the spermathecae, lateral ducts short. Prosoma, sternum and chelicerae yellowish brown. Prosoma 0.23 mm long. Eyes: PLE separated by more than 6 times their diameter, ALE and PLE contiguous. Clypeus high, about 3 times the diameter of ALE, with 6 long setae in 2 groups. Labium wider than long, fused to sternum. 4 eyes. Legs: darker, tarsus nearly twice as long as metatarsus, patella with a long strong dorsal seta. Opisthosoma globular, light yellowish brown.
Body length female: 0.52 (excl. chelicerae) mmCavernicole species. Egg sacs hanging from the web, with 2 or 3 eggs. As in other species, the web is sheet-like, horizontal, but in A. ataecina there are a number of vertical threads which suspend the web from above.
Troglobiont species (Mammola et al. 2018)
Branco V V, Morano E, Cardoso P (2019) An update to the Iberian spider checklist (Araneae). [N.B.: few records from this paper are not taken over and not commented] Zootaxa 4614: 201-254
Cardoso P, Scharff N (2009) First record of the spider family Symphytognathidae in Europe and description of Anapistula ataecina sp. n. (Araneae). Zootaxa 2246: 46-57
Le Peru B (2011) The spiders of Europe, a synthesis of data: Volume 1 Atypidae to Theridiidae. Mémoires de la Société Linnéenne de Lyon 2: 1-522
Mammola S, Cardoso P, Ribera C, Pavlek M, Isaia M (2018b) A synthesis on cave-dwelling spiders in Europe. Zoological Systematics and Evolutionary Research 56: 301-316
WSC (2021) World Spider Catalog. Version 21.5. Natural History Museum Bern, online at http://wsc.nmbe.ch (03.01.2021) doi: 10.24436/2