Cheiracanthium punctorium

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Cheiracanthium punctorium
Cheiracanthium punctorium frei 1 17 Forst Jungfernhdeide Jg 46 070920.jpg
threatening female
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Arachnida
Order: Araneae
Suborder: Araneomorphae
Family: Miturgidae
Genus: Cheiracanthium
Species: C. punctorium
Binomial name
Cheiracanthium punctorium
(Villers, 1789)
Synonyms

Aranea punctoria
Aranea nutrix
Clubiona nutrix
Cheiracanthium nutrix
Drassus maxillosus
Anyphaena nutrix
Cheiracanthium italicum

Cheiracanthium punctorium, one of several species commonly known as the yellow sac spider, is a spider found from central Europe to Central Asia. They reach a length of about 15 mm, and can penetrate human skin; the bite is similar to a wasp sting, perhaps a bit more severe, although susceptible persons can have stronger reactions, like nausea.

Females build an egg sac of about 4 cm in high grass. It opens below and is aggressively defended.

Dornfinger fg5.jpg
eggsacs

In Germany, where it is the only "seriously" toxic spider, it is a rare species, only known to occur in notable numbers in the Kaiserstuhl region, the hottest part of the country. Due to changing weather patterns, leading to increased aridity and less precipitation in some areas, this species spreads to more northern parts of Europe, e.g. Brandenburg, Germany, where the present trend is towards a climate more similar to the Central Asian steppes where C. punctorium is most numerous.

The genus Cheiracanthium was transferred from the Clubionidae to the Miturgidae in 1997.[1]

Footnotes[edit]

  1. ^ Platnick 2007

References[edit]

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