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 Tetragnatha
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Pachygnatha listeri - Spider
Pachygnatha listeri - Spider


Pachygnatha listeri
Pachygnatha listeri belong to the family long-jawed orb weavers (Tetragnathidae) and to the genus Pachygnatha, in the order spiders (Araneae), the suborder true spiders (Araneomorphae, formerly: Labidognatha), the section Entelegynae, and the superfamily Araneoidea. Scientific synonyms for Pachygnatha listeri are: Linyphia crocea, Linyphia manducula, Linyphia pentophthalmica and Manduculus limatus.

Pachygnatha listeri are found throughout the Palearctic and are commonly encountered everywhere in Central Europe, where the habitat is suitable. . This species is non endangered in Germany. It reproduces once a year.
Pachygnatha listeri - Tetragnathidae
Pachygnatha listeri - Tetragnathidae
Adult females can reach body lengths of 3-5 mm, males, 3-4. 5mm. The sexes are similar in shape and are light brown, reddish-brown or dark brown in colour. The front part of the body (cephalothorax) is pale yellowish brown to reddish brown in colour and without markings. The weak dark side edges are often difficult to recognize. On the surface of the back are dark-brown stripes which widen in the direction of the eyes without touching them. The front eyes and rear side eyes are close together. Sometimes they even touch. The deep black fangs (chelicera) are compared with the enlarged eyes. Their poison claws are long and thin.
Pachygnatha listeri have a broad, oval rear body (Opisthosoma) which in different variations is coloured. On the upper surface there is a pattern in the shape of a leaf (folium). The edges of the folium are usually strongly undulated, but on some specimens they appear only slightly sinuous. In the centre of the folium, which is often darker on the males than on the females), white spots are visible, often in pairs. The legs of the Pachygnatha listeri are reddish or brownish in colour, long, shiny and without spikes or markings.

Pachygnatha listeri prefer wet and shady habitats, but can also cope with drier environments. . They can be found in the open air (in humid forests or bush land) as well as in buildings and mainly live on the soil under stones, leaves or moss.
The adult spiders are encountered throughout the year and hunt small insects like springtails (Collembola), aphids (Aphidoidea), Diptera and others. They donít build webs.
Pachygnatha listeri often appear in the company of Pachygnatha clercki and in the vicinity of Zygielle x-notata.

Mating may take several hours and is normally non-fatal for the males. For oviposition, the female produces a flat, white cocoon, which it fastens amongst moss, under a stone or under dry leaves. There is no brood care. The newly hatched spiders can be found just above the ground. They catch prey with small orb-webs that they build. In adulthood, they no longer use webs, but walkaround hunting insects.

Pachygnatha listeri
German namesRotbraune Dickkieferspinne, Listers Dickkiefer-Spinne
Dutch namesBosdikkaak
Danish namesSkovtykkæbe
Swedish namesRandig käkspindel
AuthorSundevall, 1830
Distribution
Continents:

Eurasia
Europe
North Europe (British Isles (United Kingdom (Great Britain), Ireland), Germany (West Germany (North Rhine-Westphalia)), Scandinavia (Norway, Sweden, Denmark), Fennoscandia (Finland), Baltic region (Baltic States (Estonia, Latvia, Lithuania))), West Europe (Austria, France, Switzerland, Benelux (Belgium, Netherlands, Luxembourg)), South Europe (Italy, Iberian Peninsula (Spain, Portugal)), Central Europe (Hungary, Poland, Czech Republic (Moravia, Bohemia), Slovakia), Southeast Europe (Romania, Yugoslavia (Slovenia, Croatia, Serbia and Montenegro (Serbia)), Bulgaria, Moldova), East Europe (Ukraine, Belarus)
Asia
West Asia (Near East (Turkey))
Russia


Ecozones: Palaearctic

CountriesAustria, Belarus, Belgium, Bulgaria, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Germany, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Moldova, Netherlands, Norway, Poland, Portugal, Romania, Russia, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey, Ukraine, United Kingdom
Taxonomic statusSynonymus of Pachygnatha clercki
Links and ReferencesPachygnatha listeri in faunaeur.org
Pachygnatha listeri in itis.gov
Pachygnatha listeri in dyntaxa.se

Description of images / photos
Photography with Cameras
Nikon D3x, Nikon D300, Canon 50D
Image editing with Photoshop
1. Pachygnatha listeri - Spider
2. Pachygnatha listeri - Tetragnathidae
Quick search: Orb - Spider - Pale - Arachnid - Tetragnathidae - Brown
Body - Light - Habitat - Eye - Pattern - Part - Spiders - Eyes
Taxonomy
ClassArachnida
Arachnids
SubclassMicrura
InfraclassMegoperculata
OrderAraneae
Spiders
SuborderAraneomorphae
True Spiders
InfraorderAraneomorphi
SuperfamilyAraneoidea
FamilyTetragnathidae
Long jawed orb-weavers, Long jawed spiders, Longjawed orbweavers, Long-jawed orb weavers, Longjawed Orb Weavers
SubfamilyTetragnathinae
GenusPachygnatha
Thickjawed orbweavers, Thickjawed Orb Weavers
Specieslisteri
Pachygnatha listeri
AuthorSundevall, 1830
 
Synonyms
Linyphia crocea
Linyphia manducula
Linyphia pentophthalmica
Manduculus limatus
 Species overview

Keywords
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