Simitidion lacuna Wunderlich, 1992
Description
Male
Palp: embolus partly enclosed by the large conductor. Prosoma 0.82-1.2 mm long. Characters as in female, but opisthosoma dorsally red-brown, with an indistinct light patch. Epigastric area strongly bulging.
Body length male: 1.8-3 mmFemale
Prosoma yellowish, with a dark median band. Prosoma 0.8-1.2 mm long. Sternum yellowish. Eyes: AME as large as PME. Chelicerae: promargin without teeth. Legs yellowish, with more or less clear annulations, metatarsus III without trichobothrium. Opisthosoma dorsally with a large angular yellow patch, bordered with brown, posteriorly with a yellowish median band, laterally greenish with 2 brown bands, ventrally brownish, with some white dots in front of spinnerets.
Body length female: 2.3-3.6 mmDistribution
Figures
Pedipalp, prolateral view
(Levy & Amitai 1982a)
Pedipalp, ventral view
(Levy & Amitai 1982a)
Pedipalp, retrolateral view
(Levy & Amitai 1982a)
Pedipalp, ventral view
(Wunderlich 1992a)
Embolus, ventral view
(Wunderlich 1992a)
Embolus and conductor, ventro-prolateral view
(Wunderlich 1992a)
Epigyne
(Levy & Amitai 1982a)
Epigyne
(Wunderlich 1992a)
Epigyne
(Wunderlich 1992a)
Vulva, dorsal view
(Levy & Amitai 1982a)
Vulva, dorsal view
(Lecigne et al. 2025)
Vulva, dorsal view
(Wunderlich 1992a)
Habitus
(Levy & Amitai 1982a)
Habitus, dorsal view
(Lecigne et al. 2025)
Distribution List
References
Benhacene R, Adjami A, Hadjeb A, Kermiche K, Ouakid M L (2023) Bibliographic checklist of the Algerian spider fauna (Araneae). Zootaxa 5352: 301-357 
Benhalima S, Bosmans R (2024) First historical checklist of spiders (Arachnida: Araneae) from Morocco, between 1840–2024. Zootaxa 5555: 407-535
Bosmans R, Van Keer J (2012b) A review and new records of the comb-footed spiders in North Africa (Araneae: Theridiidae). Serket 13: 128-168
Branco V V, Morano E, Cardoso P (2019) An update to the Iberian spider checklist (Araneae). Zootaxa 4614: 201-254
Elkrew H, Hamza A, Ghana S, Shaibi T, Swehli A I, Elmareme H, Ahmad A (2024) Checklist of the spiders (Araneae) of Libya. Pakistan Journal of Life and Social Sciences 22: 19346-19369
Kmira G, Nasri-Ammar, Petillon J, Bosmans R (2025) Catalog of the spiders of Tunisia (Arachnida: Araneae). Zootaxa 5641: 1-95
Lecigne S, Moutaouakil S, Lips J (2025) Contribution to the knowledge of the spider fauna of Morocco (Arachnida: Araneae) – second note. On new species and new records from caves and miscellaneous terrestrial ecosystems. Journal of the Belgian Arachnological Society 40(1, supplement): 1-184
Levy G, Amitai P (1982a) The comb-footed spider genera Theridion, Achaearanea and Anelosimus of Israel (Araneae: Theridiidae). Journal of Zoology, London 196: 81-131
WSC (2026) World Spider Catalog. Version 27. Natural History Museum Bern, online at http://wsc.nmbe.ch (20.5.2026) doi: 10.24436/2
Wunderlich J (1992a) Die Spinnen-Fauna der Makaronesischen Inseln: Taxonomie, Ökologie, Biogeographie und Evolution. Beiträge zur Araneoleologie 1: 1-619