Le genre est caractérisé par un corps assez grand à soies courtes avec des pattes sans épines. La couleur est brune avec un abdomen plus clair, violacé, présentant souvent une bande antérieure transversale claire ainsi que d'autres bandes souvent interrompues en taches. L'espèce est la plus grande du genre, la coloration ne permet pas de l'identifier avec certitude, pour cela, il faut recourir à l'examen des pièces génitales.
Milieux colonisés
Elle colonise les milieux rocheux au Sud de son aire et les habitations partout. Elle y est présente dans les recoins sombres, souvent humides.
Chasse
Elle tisse une toile en réseau organisée en une nappe horizontale avec des fils verticaux menant au sol et collants à cette extrémité. La nuit, elle se tient suspendue sous la toile. Dans la journée, elle se cache dans une retraite qui prolonge la toile. Elle capture beaucoup de cloportes, des blattes, des coléoptères et des diptères.
Développement, cycle
Les adultes des deux sexes sont présents toute l'année. La femelle peut survivre plusieurs années. Le cycle est indépendant des saisons.
La femelle pond plusieurs cocons chaque année d'une cinquantaine à une centaine d'œufs chacun. L'incubation dure un mois. Contrairement à la Steatoda paykulliana ou à la Latrodectus, son venin est inoffensif pour l'homme
A. Canard(Université de Rennes/Service du Patrimoine Naturel, MNHN),2014
The map presents a summary at the 10 x 10 km grid of the observation data for the species transmitted to the SINP. These data have been subjected to validation filters.
Distribution map from the Atlas of Departmental Biodiversity and Marine Sectors program
Current distribution in metropolitan France
The map presents a reference distribution layer of the species at the scale of departments and marine sectors. The presence and absence data were established by expertise within a network of partners. This reference distribution is used in the validation process of the SINP data at the INPN level.
Distribution map from the Atlas of Departmental Biodiversity and Marine Sectors program
Certain presence
Corresponds to a report on the basis of at least one observation proved within a period of 10 years (20 years for little-known invertebrates) preceding the year and no presumption of extinction since obtaining the last data nor doubt on reproductive and implemented nature of this population. For migratory species, the presence indicated concerns areas of reproduction.
Probable presence
This status is based on one or more of the following criteria:
search of species incomplete but presence of supportive environments;
ecology of the species consistent with the hypothesis of his presence;
the last reliable sighting is older than 10 years compared to the reference date, no recent specific research and no presumption of extinction from that date [vertebrates, invertebrates and plants well studied (rhopalocera, grasshoppers, dragonflies ...)] ;
the last reliable observation being older than 20 years, no recent specific research and no presumption of extinction from that date [poorly known taxa: fungus, many invertebrates...].
Probable or certain absence
This point covers the absence, more difficult by nature to demonstrate than presence. This status is based on one or more of the following criteria:
intensive but unsuccessful targeted research;
lack of adequate environments;
unobserved species while its presence is easily detected;
unlikely presence for historical or biogeographical reasons.
This status must be assigned to a department in which the presence of the species is casual.
Absence due to a proven extinction
Particular case of absence due to a proven extinction less than a half century ago (older disappearances are treated as "no probable or definite").
No information
In the state of knowledge, we can not comment on the presence or absence in the current department. This is the default status when not comprised in one of the previous categories or whenever there is doubt.
French Version
