Micaria formicaria (Sundevall, 1831)
Description
Cymbium with bristles in variable positions. Epigyne with longish oval receptacula seminis, reaching to transverse ridge at least. Prosoma mostly distinctly red-brown (remove scale hairs), strongly elongated, 1.75-2.0 times as long as wide. Opisthosoma often with white dots.
Body length male: 4.0-5.7 mmBody length female: 5.0-7.5 mm
Distribution
Phenology
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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Figures
Pedipalp, retrolateral view
(Azheganova 1968)
Pedipalp, retrolateral view
(Pesarini unpubl.)
Pedipalp, retrolateral view
(Roberts 1995)
Pedipalp, retrolateral view
(Tuneva 2007)
Pedipalp, ventral view
(Tuneva 2007)
Pedipalp with tibia, patella and femur, retrolateral view
(Tuneva 2007)
Pedipalp, prolateral view
(Liu & Zhang 2025)
Pedipalp, retrolateral view
(Liu & Zhang 2025)
Pedipalp, ventral view
(Liu & Zhang 2025)
Pedipalp, retrolateral view
(Almquist 2007)
Pedipalp, ventral view
(Almquist 2007)
Cymbium
(Reimoser 1937)
Tip of cymbium
(Heimer & Nentwig 1991)
Tip of cymbium
(Heimer & Nentwig 1991)
Prosoma, dorsal view
(Liu & Zhang 2025)
Chelicerae, ventral view
(Liu & Zhang 2025)
Epigyne
(Miller 1971)
Epigyne
(Pesarini unpubl.)
Epigyne
(Heimer & Nentwig 1991)
Epigyne
(Tuneva 2007)
Epigyne
(Almquist 2007)
Vulva
(Azheganova 1968)
Vulva
(Miller 1967)
Vulva
(Reimoser 1937)
Vulva, dorsal view
(Tullgren 1946)
Vulva, ventral view
(Tullgren 1946)
Vulva
(Heimer & Nentwig 1991)
Vulva, dorsal view
(Tuneva 2007)
Vulva, dorsal view
(Almquist 2007)
Vulva, dorsal view
(Liu & Zhang 2025)
Vulva, ventral view
(Liu & Zhang 2025)
Prosoma, dorsal view
(Liu & Zhang 2025)
Chelicera, ventral view
(Liu & Zhang 2025)
Prosoma
(Heimer & Nentwig 1991)
Opisthosoma, lateral view
(Tuneva 2007)
Habitus, dorsal view
(Tuneva 2007)
Distribution List
"No references" does not mean that the species does not occur in this country, but that we have not yet inserted the reference for it. We are working on it.
References
Aakra K, Hauge E (2003) Checklist of Norwegian spiders (Arachnida: Araneae), including Svalbard and Jan Mayen. Norwegian Journal of Entomology 50: 109-129 
Almquist S (2007) Swedish Araneae, part 2 – families Dictynidae to Salticidae. Insect Systematics & Evolution, Supplement 63(2006): 285-601
Arnold K (2001) Beitrag zur Spinnenfauna (Arachnida, Araneae) des Fürstentums Liechtenstein. Berichte der Botanisch-Zoologischen Gesellschaft Liechtenstein-Sargans-Werdenberg 28: 211-244
Azheganova N S (1968) Kratkii opredelitel' paukov (Aranei) lesnoi i lesostepnoi zony SSSR. Akademia Nauk SSSR, 149pp.
Blagoev G, Deltshev C, Lazarov S, Naumova M (2018) The spiders (Araneae) of Bulgaria. Version: August 2018. National Museum of Natural History, Bulgarian Academy of Sciences. Online at http://www.nmnhs.com/spiders-bulgaria/ (accessed on 10.9.2018)
Blick T, Finch O-D, Harms K H, Kiechle J, Kielhorn K-H , Kreuels M, Malten A, Martin D, Muster C, Nährig D, Platen R, Rödel I, Scheidler M, Staudt A, Stumpf H, Tolke D (2016) Rote Liste und Gesamtartenliste der Spinnen (Arachnida: Araneae) Deutschlands. 3. Fassung, Stand April 2008, einzelne Änderungen und Nachträge bis August 2015. Naturschutz und Biologische Vielfalt 70/4: 383-510
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Grbić G, Hänggi A, Savić D (2015) New faunistic records of spiders (Arachnida, Areneae [sic]) from the Fruška Gora mountain, northern Serbia. Acta Zoologica Bulgarica 67: 479-486
Heimer S, Nentwig W (1991) Spinnen Mitteleuropas. Paul Parey Berlin
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Kronestedt T (2001) Checklist of Spiders (Araneae) in Sweden [Preliminary version February 2001]
Le Peru B (2007) Catalogue et répartition des araignées de France. Revue Arachnologique 16: 1-468
Liu B, Zhang F (2025) Revision of the genus Micaria Westring, 1851 from China (Araneae: Gnaphosidae). Zootaxa 5645: 1-114
Maurer R, Hänggi A (1990) Katalog der schweizerischen Spinnen. Documenta Faunistica Helvetiae 12
Miller F (1967) Studien über die Kopulationsorgane der Spinnengattung Zelotes, Micaria, Robertus und Dipoena nebst Beschreibung einiger neuen oder unvollkommen bekannten Spinnenarten. Přírodovědné práce ústavů Československé Akademie Věd v Brně (N.S.) 1: 251-298
Miller F (1971) Pavouci-Araneida. Klíč zvířeny ČSSR 4: 51-306
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Otto S (2022) Caucasian spiders. A faunistic database on the spiders of the Caucasus Ecoregion. Database version 02.2022. Internet: caucasus-spiders.info.
Pesarini C (unpubl.)
Pfliegler W A, Schönhofer A, Niedbała W, Vella P, Sciberras A, Vella A (2017) New records of mites (Acari) and harvestmen (Opiliones) from Malta with a preliminary checklist of Maltese Arachnida. Soil Organisms 89: 85-110
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Roberts M J (1995) Collins Field Guide: Spiders of Britain & Northern Europe. HarperCollins, London, 383 pp.
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