spiders

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                                                        Spiders 

Spiders belong to the class Arachnida. Arthropods such as scorpions, harvestmen, ticks and mites are also among that group.
The rear body is softer than the front. They have eight legs. The first pairs of legs are the longest. No real antennae but palps.
Most of the spiders have eight eyes. But there are also spiders withesix eyes. The eyes are not as great.
They are predators. Their method of hunting is different.
Wheel-shaped webs are best known.
Not all spiders us webs to hunt. The bite of spiders in the Netherlands is not dangerous for humans.
More information can be found at wikipedia
 

Family orb-weaver spiders (Araneidae)
These spiders make spiral wheel-shaped webs

Kruisspin (Araneus diadematus)

Kruisspin (Araneus diadematus)

Kruisspin (Araneus diadematus) European garden spiderdiadem spider, or cross spider (Araneus diadematus) Family orb-weaver spiders (Araneidae)

At the end of the summer the garden is full of webs. Many webs are from the European garden spider. They often span a great distance. 
The females are  adult in the second year of their lives. They are much larger than the males. That is at the end of the summer. Hence the many big webs. The mating is risky for the males, for they can be eaten by the female.

When it is freezing the adult spiders die.

The eggs are in cocoons and are deposited in autumn. This way they hibernate. The young spiders, which hatch in the spring, release long silken threads to travel on the wind to other areas. (ballooning)
Cross spider because of the the white dots on its back forming a cross. Its colour is from light yellow to dark grey.
Length 11 - 18 mm.
Western Europe, parths of  North America

German: Gartenkreuzspinne  French: épeire diadčme

Walnut Orb-Weaver Spider (Nuctenea umbratica) Walnut Orb-Weaver Spider (Nuctenea umbratica) Walnut Orb-Weaver Spider (Nuctenea umbratica) Walnut Orb-Weaver Spider (Nuctenea umbratica)

Walnut Orb-Weaver Spider (Nuctenea umbratica) Walnut Orb-Weaver Spider (Nuctenea umbratica) Family orb-weaver spiders (Araneidae)

Walnut Orb-Weaver Spiders have a flattened body, with a leathery skin.  
The spider on the photo was on top of the window. It felt threatened by me. When it failed to hide, it let itself down to the ground on a safety line. Then it pretended to be dead. It folded its legs around.
The spiders are nocturnal and shy by day. It is hiding under the loose bark of trees. You also often find the spider around houses.
The web looks like the web of a cross spider. From the web the spider makes a signaling thread to the hiding place. After dusk it sits in the center of the web. Especially moths should beware.
Length male  9 mm lang, female 14 mm.
A common spider in Central Europe
.
The spider on this photo is very dark. But the color ranges from red brown to grey brown. On its body a leaf-like marking.

  Platte wielwebspin (Nuctenea umbratica)   Photo 28-5-2010. AWalnut Orb-Weaver Spider with the leaf-like marking.
German: Spaltenkreuzspinne  French: épeire des fissures

Araniella spec. Family orb-weaver spiders (Araneidae)

Araniella spec. Family orb-weaver spiders (Araneidae)

The Araniella cucurbitina and the Araniella opisthographa are not to distinguish from a photo.
They are recognizable by the yellow-green back body. 
In July, the eggs are laid in cocoons near the web. The very young spiders are light in color. In the autumn they are red, brown. A good camouflage among autumn leaves. They hibernate.

Males 5 mm, females 8 mm.
Small webs. Approximately 10 cm diameter.

  Araniella spec. Family orb-weaver spiders (Araneidae)

German: Kürbisspinnen  French: épeire concombre

Zygiella x-notata

Zygiella x-notata Family orb-weaver spiders (Araneidae)

You can find the webs of this spider often in window frames
The web has to the top in the corner two sectors without connecting threads 

The eggs in a cocoon hibernate. The spiderlings hatch next spring.

Males 7 mm, females 11 mm.

   Zygiella x-notata
  
German: Sektorspinne, Sektorenspinne  French: épeire des fenętres

Mangora acalypha

Mangora acalypha Family orb-weaver spiders (Araneidae)

An easily recognizable spin. By the spots on the body and the black border and center stripe on the carapace..

Webs on bushes and low vegetation.
Male 3 - 3,5 mm, female 5,5 - 6 mm.

The Palearctic regions.

 

German: Streifenkreuzspinne


Family Stretch spiders (Tetragnathidae) 

Stretch spiders have an elongated body form. They have long legs. They can camouflage themselves well on a stem or  an elongated  leaf. Than they stretch their front legs forward and the others legs in the other direction. 
The web is like a spiral wheel-shaped web, but with a hole in the middle.

Stretch spider spec. (Tetragnatha spec.)

 

Stretch spider spec. (Tetragnatha spec.) Family Stretch spiders (Tetragnathidae) 

There are similar species. They are not to identify from a picture.

Early summer I often see them  at the pond on the leaves of the yellow iris. 
Although I haven't seen it, they can walk over water.

Ph

German: Eigentlichen Streckerspinnen 

Stretch spider spec. (Tetragnatha spec.)

Stretch spider spec. (Tetragnatha spec.) Family Stretch spiders (Tetragnathidae) 

Also this spider is not to identify from a photo.

It looks a bit different from the neighbor above. I have found this spider five months later, in a different place. Not near the pond, but near our house in a bush in a web. I've kept my spade behind the stretch spider to get it better on the photo.

Photo 23-10-09

 Stretch spider spec. (Tetragnatha spec.)

Metellina spec.

Metellina spec. Family Stretch spiders (Tetragnathidae) 

Like the money spiders metellina species  have a tuning fork figure on the carapace.
Metellina mengei  Length 5 mm. July - September or Metellina segmentata. They are very similar. Despite their name they are about the same time of the year.

According Jacomijn Princen: If the ventral hairs (not the bristles) are shorter than the diameter of the leg: It is the M. segmentata. When they are twice as long, it is is the M. mengei. This feature applies only to males. 

 Metellina spec.   Metellina spec. Photos 23-4-2010.

German: Herbstspinnen  

 

Family tangle-web spiders,  cobweb spiders or comb-footed spiders (Theridiidae) 
They have a  bulbous body. Messy webs with sticky threads.  They have rows of tiny bristles on the tip of their hind legs they use to spread out their silk. Tangle-web spiders (Theridiidae)  have a comb on the underside of the tarsus of leg IV. Tangled nest spiders (Amaurobiidae)  have a comb on the top of the metatars..

Enoplognatha ovata or Enoplognatha latimana

 

Enoplognatha ovata or Enoplognatha latimana. Family tangle-web spiders,  cobweb spiders or comb-footed spiders (Theridiidae) 

Two very similar species. The color may vary. Always two rows of black spots.

The cocoons with eggs are light blue. You can find them on leaves curled by spinning

Length 3 - 6 mm

 

 

Episinus angulatus

 

Episinus angulatus Family tangle-web spiders,  cobweb spiders or comb-footed spiders (Theridiidae) 

They can stretch their front legs forward like Stretch spiders. I found this spider on a flowerpot.
They make their H-shaped web at or near ground level 

The Episinus angulatus has a flat, thin body, but it broadens a bit near the end.  
About 5 mm

 Episinus angulatus

Rabbit hutch spider (Steatoda bipunctata)

 

Rabbit hutch spider (Steatoda bipunctata)  Family tangle-web spiders,  cobweb spiders or comb-footed spiders (Theridiidae) 

The carapace is glossy shiny brown.
The Steatoda bipunctata spider is often found under trees and in or around houses, barns and garages.

Length  4 to 7 mm

Rabbit hutch spider (Steatoda bipunctata)       Rabbit hutch spider (Steatoda bipunctata)) Rabbit hutch spider (Steatoda bipunctata)) Photo 13-2-2010. A hibernating Rabbit hutch spider under the lid of a garbage. Maybe a young spider.

German: Fettspinne  

Anelosimus vittatus, Seycellocesa vittatus

Anelosimus vittatus, Seycellocesa vittatus Family tangle-web spiders,  cobweb spiders or comb-footed spiders (Theridiidae) 

Length female 3 - 3.5 mm, male 2.5 - 3.5 mm.
Low in the trees, in bushes and high vegetation.

 Anelosimus vittatus, Seycellocesa vittatus  Anelosimus vittatus, Seycellocesa vittatus


Family sheet weavers (from the shape of their webs),  money spiders (Linyphiidae)
sheet webs with criss-cross threads above it to let the insects fall down in the web. The spider hangs upside down under it.

Money spider (Linyphia triangularis)

 

Money spider (Linyphia triangularis) Family sheet weavers,  money spiders (Linyphiidae)

Money spiders have a tuning fork figure on the carapace. The Linyphia, tenuipalpis is similar, but this spider is mainly found in the eastern Netherlands and is rarer.

The cocoons with eggs are hidden under the leaves

  
  Money spider (Linyphia triangularis)   Money spider (Linyphia triangularis)      Money spider (Linyphia triangularis)  Money spider (Linyphia triangularis) Last 2 photos: 7-12-2009

German: Gemeine Baldachinspinne  

Lepthyphantes minutus

Lepthyphantes minutus Genus Lepthyphantes Family sheet weavers, money spiders (Linyphiidae).

In any case Lepthyphantes. The species is not certain. Recognizable by the dark carapace and striped legs.
On the site
eurospiders.com are gedetailed  photos.
You can find it near tree trunks I found this spider in October under a bag of sand.

Lepthyphantes are small spiders. This is a larger species. But still small. 
Length 3 - 4 mm.

  
  Lepthyphantes minutus    Lepthyphantes minutus

 

Lepthyphantes spec. Female.      Lepthyphantes spec. Female.      Lepthyphantes spec. Female.  Lepthyphantes spec. Female.  
Photo 16-11-09.  On the wall in the sun.

Platform hammock-spider (Neriene peltata)

Platform hammock-spider (Neriene peltata) Family sheet weavers, money spiders (Linyphiidae).

The back is white with a dark brown central stripe. The adomen is striped brown and white.

Body length about 5 mm.

Male: April - July. Female: April - September
 Platform hammock-spider (Neriene peltata) 
     

German: Waldbaldachinspinne  

 

Familie Kaardertjes (Dictynidae)
They create a tangle of silken fibers.

Nigma walckenaeri

Nigma walckenaeri  Family Dictynidae.

This green spider lives on leaves and is well camouflaged. The male has a reddish brown carapace.

As you can see on the photos it makes very fine cobwebs. From the curled leaves it makes a shelter by cobwebs.
The male stays with the female and there is no no danger, it is eaten by the female, like most other spiders. But when it dies, it is still eaten.

Length 3 - 5 mm.
Adults in August - Oktober. 
  Groen kaardertje (Nigma walckenaeri)

German: Grüne Lauerspinne, Grüne Kräuselspinne  


Family Vibrating Spiders (Pholcidae)
Spiders with a small body and very long legs. They make messy, irregular, tangled webs

Daddy-long-legs spider, cellar spider or skull spider, vibrating spider,  house spider (Pholcus phalangioides)

 

Daddy-long-legs spider, cellar spider or skull spider, vibrating spider,  house spider (Pholcus phalangioides) Family Pholcidae

The spider has got its name vibration spider, because it is shaking when it is threatened. 
Just like in our house you can vind this spider in most houses and barns. Often in dark places.
They make a rather messy web. Often near the ceiling. When the web is dirty, they make a new one. They don't eat their own web like many other spiders. My wife is not very happy with these webs.
The spider throws tough web material over the victim in the web until it is harmless.
The eggs are held together with a few wires. The female hold the eggs in her pedipalps

Body length females: about 9 mm. Males are slighty smaller. 

German: Große Zitterspinne French: Pholque phalangide


  


Family
tangled nest spiders, night spiders, hacklemesh weavers (Amaurobiidae) 
Night spiders because they are active at night. They make  wooly combed catching silk. It is a not sticking, messy web, but when the victim in the web tries to free itself, it  becomes even more tangled into the stretching, wooly silk. With a comb on the rear legs the spider comb the silk wooly. Tangled nest spiders (Amaurobiidae)  have a comb on the top of the metatars. Tangle-web spiders (Theridiidae)  have a comb on the underside of the tarsus of leg IV. 

Window spider (Amaurobius fenestralis) or Amaurobius similis.

Window spider (Amaurobius fenestralis) or Amaurobius similis. Family tangled nest spiders, night spiders, hacklemesh weavers (Amaurobiidae)

Both species are quite similar. The Lace webbed spider you can  find in the house. The window spider usually is outside walls around windows, but also under bark and stones. The Lace webbed spider is often lighter.
On the abdomen, the window spider has two or three V-shaped spots. The Amaurobius similis usually has four spots. You can't see the spots very well on my photos.
This spider I found outside near the wall under a tile on the ground.

Length 7 to 12 mm

Window spider (Amaurobius fenestralis) or Amaurobius similis.        Window spider (Amaurobius fenestralis) or Amaurobius similis.  Window spider (Amaurobius fenestralis) or Amaurobius similis. Last two photos:  30-4-2010.  I found it in the pantry.

German: Finsterspinnen 

 

These spiders do not use webs to capture prey.

Family Spitting spiders (Scytodidae) and also belongs to the family of six eyed spiders. (Haplogynae)
Thet spit a poisonous silk in a zig-zaggy pattern at their prey. The prey is stuck on the surface. Distance up to about 2 cm. In the Netherlands Scytodes thoracia is the only species. 

Spitting Spider (Scytodes thoracica)

Spitting Spider (Scytodes thoracica) Family Spitting spiders (Scytodidae).

A light brown spider with a flecked pattern of dark spots.  The spider has long legs with dark rings. The thorax is larger than the abdomen. Unlike most spiders with eight eyes the Spitting spider has six eyes.
The silk, they spit is poisonous. In the head-thorax are silk glands, which are connected to venom glands. They also have silk glands in the body behind.
The females carry the egg mass under their body.
In the Netherlands they mainly are found in the houses, for the winters are too cold for them. Originally they live in southern Europe. 
Length 3 - 6 mm.

 Spitting Spider (Scytodes thoracica)  Spitting Spider (Scytodes thoracica)  P
hoto March 2010

German: Speispinne, Leimschleuderspinne  

 

Family wolfspiders (Lycosidae) 
Some species are chasing their prey (small distances). Other wolfspiders wait for a prey (in a burrow)

Wolf spider spec. (Pardosa spec.)

 

Wolf spider spec. (Pardosa spec.) Family wolfspiders (Lycosidae)

The species can't be determined from a photo.
They are walking around in our garden in search of victims. Therefore they have a good vision.

The females carry their egg sacs by attaching them to their spinnerets.  When the young leave the sac, they stay on the abdomen of mother.
wolf spider-The females carry their egg sacs by attaching them to their spinnerets.     wolf spider The females carry their egg sacs by attaching them to their spinnerets.

German: Wolfspinne 

Family Cell spiders, woodlouse hunters (Dysderidae)

Woodlous spider (Dysdera crocata or Dysdera erythrina) Woodlous spider (Dysdera crocata or Dysdera erythrina) Woodlous spider (Dysdera crocata or Dysdera erythrina)  Family Cell spiders, woodlouse hunters (Dysderidae)


There is not much difference between these two species. The carapace is red brown, the abdomen is white-yellow, white-gray.
They feed on woodlice. With the elongated fangs it captures the woodlice.  (Between the segments of woodlice.)
In my garden they are under stones and wood.


Males 7 mm - 10 mm. Females 15 mm - 20 mm.
You can find these spiders almost anywhere in the world.


German: Kleine asseljäger (Dysdera erythrina) 

 

Family Sac Spiders (Clubionidae) 
Small spiders. Usually without much colour and therefore they are difficult to determine. They hunt at night 

Sac spider spec. (Clubiona spec.)

Sac spider spec. (Clubiona spec.) Family   (Clubionidae)

The spider in the picture is still young.
You often find them among the leaves, under stones, or bark. They make at daytime a small web (a silken tube or sac), where they hide and sleep during the day. Such a sac they also use for the eggs
To hunt at night they use no web.
Length about 5 mm.

Photos below: In December a spider hanged on a wire in the kitchen. I've put it in a jar, to photgraph it the next day. The next day it sat under a spinning against the glass wall. I have awoken it for the photo. When I was finished, I have put it in the overwintering plants.

According Jacomijn Prinsen: It is a subadult male, in the spring it will molt to adult. Than it can be determined with the palp under the microscope. But I don't think, I will find it back.
Now it will be Clubiona spec.   Sac spider spec. (Clubiona spec.)  Sac spider spec. (Clubiona spec.)  Sac spider spec. (Clubiona spec.)               
German: Sackspinnen

Famly Buzzing spiders (Anyphaenidae)

Buzzing spider  (Anyphaena accentuata)

Buzzing spider  (Anyphaena accentuata) Buzzing spiders (Anyphaenidae)    

In the Netherlands it is the singel species of the buzzing spiders.  At night the buzzing spider hunts on the leaves of bushes and trees. On this photo the spider is sitting on the bamboo, which is designed for masonry bees to make nests in it. I am not really happy.
Under the leaves you can find cocoons with eggs, which are guarded by the females. The males are able to produce audible sounds by vibrating the abdomen against the leaves (for the females).
From light brown to grayish brown. They can be identified by the triangular dark spots on the rear body. And by the
dark lateral bands on the carapace with light spots.
In winter they sit under the bark of dead trees.
Length 4 - 8 mm
Europe, Central Asia

Photo: 18-4-2010

Family crabspiders (Thomisidae)
Like crabs crabspiders have a flat body and powerful frontlegs and they are able to move sideways. They are oft sitting among or on leaves or flowers. 

Diaea dorsata

Diaea dorsata

 

Diaea dorsata Diaea dorsata  Family crabspiders (Thomisidae)

To recognize by the green carapace and legs. A brown with yellow abdomen.
Males 4 mm, 6 mm females.
This spider was missing a leg, but it did not bother. If it is not an adult, it gets a new leg after molting. In dangerous situations, these spiders and many other spiders are able to drop a leg.

Diaea dorsata  Family crabspiders (Thomisidae) Crabspiders don't make a web, but they use spider silk as security thread. gh the air)    Photo: 21-10-09
male Diaea dorsata The male Diaea dorsata has very long legs. Photo 16-5-2010

German: Grüne Krabbenspinne, Grünbraune Krabbenspinne

 

Family Running Crab Spiders (Philodromidae)
Running crab spiders closely resemble crab spiders (Thomisidae), but their second set of legs are the longest. They chase for prey. Crab spiders wait for prey. Both species are able to move sideways.

Philodromus spec.

 

Philodromus spec. Family Running Crab Spiders (Philodromidae)

What species it is, I can't say. It is able to run away sideways.
You often can  see them with spread legs close to a leaf.

German: Laufspinnen 


  Philodromus spec. Philodromus spec. Two other Philodromus spec. 

Philodromus dispar

 

Philodromus dispar  Family Running Crab Spiders (Philodromidae)

This is the male. The male Philodromus dispar is black or dark brown with white edges.  
The female  is variable in colour. This would be the female spider with a Meal Moth (Pyralis farinalis). I only had seen the moth. I did not understand, why the moth flew away quickly. Until I looked at
the photo.

About 5 mm.


  Zwartrugrenspin  (Philodromus dispar)

Philodromus aureolus

Philodromus aureolus Family Running Crab Spiders (Philodromidae)

This is a male. Thin palps. Males have a metallic sheen. This spider have a grey colour. Often it is grey with a purple sheen. Females and young spiders have no metallic sheen. (Tan - brown)

They can be confused with Philodromus cespitum and Philodromus buxi.
May-August
Males: 4 to 5 mm. Females: 4 to 7 mm
The young spiders overwinter.

   Tuinrenspin (Philodromus aureolus) Photo 28-5-2010 Philodromus aureolus  Photo 30-5-2010 This spider is darker.
  

Family jumping spiders (Salticidae)
Jumping spiders can jump from place to place, secured by a silk tether.

Zebra spider (Salticus scenicus)

Zebra spider (Salticus scenicus) Family jumping spiders (Salticidae)

Zebra spiders are like the zebras black with white stripes of hairs. You can find it outside on the house walls in the sunshine. This spider can jump very well.
The four pairs of eyes are striking. In front of the head are two large and two small eyes. Above, it has two small eyes. They therefore have a good vision a very wide field of view.

In the Netherlands there are two other species. Namely Salticus cingulatus and Zebra Salticus nose.
They use a small white silk sac for hiding. The eggs are also laid in this sac. The adult spider overwinters.

Length 5 - 7 mm.
Widespread throughout Europe, northern Asia and North America 

 Zebra spider (Salticus scenicus)  Zebra spider (Salticus scenicus) Photo 30-4-2010. German: Zebraspringspinne  French: Saltique chevronné. 

Heliophanus spec.

Heliophanus spec. Family Heliophanus

A jumping spider. There are some similar Heliophanus species in the Netherlands. A nice small spider. I often see it early summer in the garden.

Similar species:  Heliophanus cupreus Heliophanus flavipes

Heliophanus spec.  Heliophanus spec. Photos 29-5-2010.  
 

I want to thank everyone, who has helped me (waarneming.nl) to identify. In particular, Jacomijn Prinsen en Willem Boomkens.

Harvestmen, order Opiliones formely Phalangida class Arachnida
Daddy-long-legs, but this name is also used in conjunction with crane flies and cellar spiders in the family Pholcidae.

In 2010 I will take more photos of harvestmen. They look like spiders.
Features: The two main body sections are grown together to an oval shaped body (difference with the spiders)  They also have no venom or silk glands. Usually they have a single pair of eyes. The second pair legs is the longest and works as antennae or sense organs.
Most species are maturing in late summer - hence their common name.
Most harvestmen are active during the night.
Harvestmen catch small insects and other small species, but they also eat the decays of any dead animal and all kind of plant material and fungi.
A leg (or legs) easily becomes detached from the body.  This is a  means of protection from predators. When detached, a leg will continue to twitch for some time. (sometimes even up to an hour)
They lay eggs in moist soil, under rocks or logs.

Red Harvestman, Opilio canestrinii  male Red Harvestman, Opilio canestrinii  male

Red Harvestman, Opilio canestrinii  male

Female Red Harvestman  Female Red Harvestman

Red Harvestman, Opilio canestrinii  female

Striking is the difference in colour of the male between the orange body and the dark legs. (but yellow  "knees")

The legs of Opilio parietinus and Opilio saxatilis are less dark. They look like the Opilio canestrinii. 

The Opilio canestrinii has invated Europ fom the Apennines. Since 1993 it is found in the Netherlands. In England in 1999.  It lives on the walls. Other species at walls Opilio parietinus and Opilio saxatilis are wiped out by the Opilio canestrinii. Most likely the eggs and harvestmen are imported by transporting plants.

Body length males: 4 - 6 mm. Females: 5 - 8 mm. The female is yellowish brown to ocher. The legs has light and dark rings.The eggs are laid in autumn.
Adults June - December.

Female Red Harvestman  in December in the holly. Female Red Harvestman  Female Red Harvestman Thank you Arp Kruithof for your helpn.

Spring Harvestman  (Rilaena triangularis) Spring Harvestman  (Rilaena triangularis)

The spring harvestman is grown mid-April. And is therefore the first harvestman you see in the spring. 
April to June.  This harvestman don't overwinter as an egg, but as a nymph.

 

Information about spiders: www.nicksspider,   Spiders of North-West Europ and  Eurospider.com
A beautiful site with much information about animals:  
The Garden Safari  

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