Green spiders are dangerous to humans. Spider wasp is a poisonous insect with a bright appearance.
I identified this cute arachnid as floral about spider species Misumena vatia from the family sidewalk spiders (crab spiders). It is somewhat confusing that in my presence the spider moved exclusively in a straight line and did not show any crab-like behavior, but the bright coloring and shape of the body still indicate that it is a side-walking spider. The yellow spider was found not on a flower, even though its name is floral, but on a mushroom. The yellow spider turned out to be quick, and, having been released from the jar, it set off in a race across the expanses of the table, and therefore it turned out to be quite difficult to photograph it.
In standby-defense mode, the spider assumed this pose, standing on its 4 short hind legs and threateningly spreading its 4 long front legs.
Scary! It’s a gift that he’s only about 8 millimeters tall, even if he doesn’t have paws.
The spider did not sit still, studied the area, looked out for something:
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When the camera approached, he became nervous and started running:
Then an interesting way emerged to “occupy” the guest in order to still have time to bring the lens to him. My hairy hand came in handy in this matter: the yellow spider got tangled in its hair, took a long time to figure out where to throw its long legs, so its photogenicity increased noticeably.
The spider itself is translucent and glows in the sunlight, only on the head there is a special opaque “visual patch” with eight eyes.
During the photo shoot, the spider was planted on a flower, from which it safely disappeared, but I didn’t bother looking - where can my carelessness compete with spider mimicry?
What do sources say about these spiders?
Floral spider Misumena vatia belongs to the family side-walking spiders or crab spiders (Thomisidae). Representatives of the family received this name for their ability to move sideways (which, however, my particular specimen never demonstrated to me).
Side-walking spiders do not spin webs: their main weapons are mimicry and long front legs.
Many side-walking spiders (for example, our hero — Misumena flower spider) spend most of their time on flowers, waiting for prey, which, as a rule, are various nectar lovers - bees, butterflies, etc. The spider waits for the moment when the victim immerses its head in the interweaving of stamens, and attacks, capturing it with its hunting legs and inflicting a poisonous bite on the neck, instantly immobilizing the insect.
Thanks to patronizing coloring the spider can remain unnoticed while in close proximity to the victim. However, yellow is only a special case of the color of a flower spider. Depending on the preferred plants, it can vary greatly.
The flower spider also has a huge number of relatives that live in trees or on the forest floor and have a protective coloring that matches their habitat and allows them to completely merge with the substrate.
In the world fauna there are 170 genera and more than 2000 species of side-walking spiders.
For a person they not dangerous.
There are more than 40 thousand species of spiders in the world. Green spider is a generalized informal name for spiders with a characteristic color.
Green lynx spider Peucetia viridans
Refers to poisonous spiders. A cross spider that lives in temperate climates, on grass and branches of bushes and trees. South Russian tarantula - lives in semi-desert and steppe regions of Russia, lives in burrows. It is a poisonous and dangerous species of spider for humans. The jumping spider is a jumping small spider.
But there is an exception - the American green lynx spider. But it is known that pregnant females can change their color within 16 days to match their background. Spiders living in California are not grass-green, but yellow in color. These diurnal spiders sometimes make sounds similar to the hiss of a cobra. Adult spiders can be recognized by numerous large spines on their legs, as well as by sharp, sudden movements. They feed on a wide variety of insects: wasps and bees (they make up up to 40% of prey), dipterans (15%), beetles, etc. These spiders rarely bite humans and their venom is of low toxicity.
Due to the presence of stripes, female Argiopes have been called "zebra spiders". Today I saw this spider in the raspberry bushes in the city of Novocherkassk, Rostov region. I saw such a beauty in the garden, the web weaves is amazing. And also at work I once saw the same one, only silver-gray in color, but smaller in size, apparently a male...))) Cool spiders. Beautiful Spiders. I caught a lot of these. But their poison seems very dangerous... There was a female sitting on our Christmas trees. I am terribly afraid of spiders. I read on the Internet that she is poisonous. A beautiful spider, and most importantly, a useful one, it eats all sorts of nasty things in the garden.
South Russian tarantula
This is the most poisonous spider living in Russia. In Russia, antikarakurt serum is used to treat the consequences of the bite of these poisonous spiders.
Another fairly famous and at the same time the largest spider in Russia is the South Russian tarantula. The size of females reaches 3 cm, males - 2.5 cm. Their integument is gray, brown, brown or red, usually with a pattern on the upper side of the abdomen. Hunts from a hole, focusing on the shadow of an insect passing by. Like the karakurt, the South Russian tarantula does not attack itself, but attacks only when a threat arises. He sits in his own web, catches flies, doesn’t touch anyone, doesn’t attack himself, and is absolutely non-aggressive. Painful is not the right word. It felt as if a hornet had stung me (a hornet had stung me before too - that’s how happy I was).
The most dangerous spider that lives in our homeland is the karakurt. Mizgir, or South Russian tarantula. Next in our ranking of dangerous spiders is the South Russian tarantula, which is also called the Mizgir. Another representative of poisonous spiders in Russia is the eight-legged Cheiracanthium. They belong to the subspecies of crosses.
For example, the jumping spider is considered the most jumping small spider. The silverfish is the only spider adapted for life in water. Its element is freshwater standing and slow-flowing reservoirs. Poisonous spiders in Russia are known primarily for their unspoken leader - the karakurt (or black widow). Another dangerous spider is the South Russian tarantula. Heiracanthium is another poisonous representative of eight-legged arthropods that lives in our country.
Spider (Araneae) belongs to the phylum arthropod, class Arachnida, order Spiders. Their first representatives appeared on the planet approximately 400 million years ago.
Spider - description, characteristics and photographs
The body of arachnids consists of two parts:
- The cephalothorax is covered with a shell of chitin, with four pairs of long jointed legs. In addition to them, there is a pair of claws (pedipalps), used by mature individuals for mating, and a pair of short limbs with poisonous hooks - chelicerae. They are part of the oral apparatus. The number of eyes in spiders ranges from 2 to 8.
- Abdomen with breathing holes located on it and six arachnoid warts for weaving webs.
The size of spiders, depending on the species, ranges from 0.4 mm to 10 cm, and the span of the limbs can exceed 25 cm.
The coloring and pattern on individuals of different species depend on the structural structure of the integument of scales and hairs, as well as the presence and localization of various pigments. Therefore, spiders can have both dull, monochromatic and bright colors of various shades.
Types of spiders, names and photographs
Scientists have described more than 42,000 species of spiders. About 2,900 varieties are known in the CIS countries. Let's consider several varieties:
- Blue-green tarantula (Chromatopelma cyaneopubescens)
one of the most spectacular and beautifully colored spiders. The tarantula's abdomen is red-orange, its limbs are bright blue, and its carapace is green. The size of the tarantula is 6-7 cm, with a leg span of up to 15 cm. The spider’s homeland is Venezuela, but this spider is found in Asian countries and on the African continent. Despite belonging to tarantulas, this type of spider does not bite, but only throws special hairs located on the abdomen, and only in case of severe danger. The hairs are not dangerous for humans, but they cause minor burns on the skin, similar in effect to nettle burns. Surprisingly, female chromatopelma are long-lived compared to males: the lifespan of a female spider is 10-12 years, while males live only 2-3 years.
- Flower spider (Misumena vatia)
belongs to the family of side-walking spiders (Thomisidae). Color varies from completely white to bright lemon, pink or greenish. Male spiders are small, 4-5 mm long, females reach sizes of 1-1.2 cm. The species of flower spiders is distributed throughout European territory (excluding Iceland), and is found in the USA, Japan, and Alaska. The spider lives in open areas with an abundance of flowering herbs, as it feeds on the juices of those caught in its “embraces” and.
- Grammostola pulchra (Grammostola Pulchra)
Sidewalk spiders (crab spiders) spend most of their lives sitting on flowers waiting for prey, although some members of the family can be found on tree bark or forest floors.
Representatives of the family of funnel-web spiders place their webs on tall grass and bush branches.
Wolf spiders prefer damp, grassy meadows and swampy wooded areas, where they are found in abundance among fallen leaves.
The water (silver) spider builds a nest underwater, attaching it to various bottom objects with the help of webs. He fills his nest with oxygen and uses it as a diving bell.
What do spiders eat?
Spiders are quite original creatures that eat very interestingly. Some types of spiders may not eat for a long time - from a week to a month or even a year, but if they start, there will be little left. Interestingly, the weight of food that all spiders can eat during the year is several times greater than the weight of the entire population living on the planet today.
How and what do spiders eat? Depending on the species and size, spiders forage and eat differently. Some spiders weave webs, thereby organizing clever traps that are very difficult for insects to notice. Digestive juice is injected into the caught prey, corroding it from the inside. After some time, the “hunter” draws the resulting “cocktail” into his stomach. Other spiders “spit” sticky saliva while hunting, thereby attracting prey to themselves.
a snail or an earthworm and eat them there quietly.
The queen spider hunts only at night, creating a sticky web bait for unwary moths. Noticing an insect next to the bait, the queen spinner quickly swings the thread with her paws, thereby attracting the attention of the prey. The moth happily hovers around such a bait, and having touched it, it immediately remains hanging on it. As a result, the spider can calmly attract it to itself and enjoy its prey.
Large tropical tarantula spiders happily hunt small ones,
Haymaking spiders prefer cereal grains.
Judging by numerous notes by scientists, a huge number of spiders destroy small rodents and insects several times more than the animals living on the planet.
Poisonous spiders in Russia are not such a rare phenomenon. A meeting with them can end in quite a lot of trouble, including a hospital bed and even death. The latter happens rarely and only in the case of untimely or incorrectly provided assistance.
Here, neither specialists nor ordinary people have any disagreements and there cannot be any. Karakurt is the only one of all the representatives of arthropods living in the vast expanses of our country whose bite can be fatal.
Appearance
Only females reaching a size of 15-20 mm are dangerous to humans. They have two distinctive signs that prevent karakurts from being confused with other representatives of arthropods. There are exactly 13 bright spots or dots on the upper side of the black abdomen. Naturally, there is no time to count them, but the very combination of black with bright spots should serve as a signal of danger. On the underside of the abdomen there is one equally bright spot in the shape of an hourglass.
Habitats
Karakurts are thermophilic. They live in the Southern Urals, the Caucasus and the Black Sea regions. However, recently the habitat of this spider has expanded to more northern regions of Russia, right up to the Moscow region. This is explained by global warming, but more optimistic scientists are confident that this only happens in very hot years, and not always.
Consequences of a bite
Karakurt, which has a very strong poison, unlike other spiders, is very aggressive and bites not only for the purpose of self-defense. He can attack purposefully, so you should not only tease him, but also approach him with great caution. The bite itself is very painful, and after 10-15 minutes the pain spreads throughout the person’s body and becomes almost unbearable.
If assistance is not provided in a timely manner, which consists of administering a special serum, shortness of breath, nausea, vomiting, rapid heartbeat, fever, headache and dizziness, tremor, profuse sweating, and a feeling of heaviness in the chest may develop.
First aid
The only thing that can be done for the victim is to take him to the nearest hospital as soon as possible.
Other poisonous spiders of Russia
In the vastness of the Russian Federation, you can meet other representatives of arthropods that are capable, if not of killing a person with their bite, then of causing a lot of painful sensations.
Bagworm (bag spider). This spider is aggressive enough to attack even in the absence of direct danger. The bite is not fatal, but is accompanied by very severe pain, which can spread very quickly throughout almost the entire body.
Pouch spider
False black widow. First of all, it is dangerous because it often gets into living quarters. After the bite, acute, prolonged pain, weakness and fever are felt. Symptoms may last up to two days.
As you can see, poisonous spiders are far from uncommon in Russia, but only the female karakurt should be greatly feared. You can easily cope with the consequences of bites from other arachnids on your own. However, seeing a doctor is highly recommended.
First aid for a spider bite
Not everyone can distinguish one type of spider from another, despite the fact that the colors and patterns on their abdomens are different. And they all differ from each other in size and length of their legs. However, often people begin to panic and simply do not pay attention to what their offender looks like.
In most cases, symptoms begin to appear quite quickly and first aid should also be prompt, but thoughtful.
- The first thing to do is wash the wound with soapy water.
- The next action should be aimed at preventing the spread of the poison. This is achieved in two ways: immobilize the affected limb with a splint and apply a tight bandage above the bite site, thereby reducing blood circulation.
- It is worth applying a cold compress to the wound itself, which will also delay the action and spread of the poison.
- Drinking more will also be a reducing factor. It will also help remove poison from the body.
- In order to relieve painful symptoms, you can give the victim an aspirin tablet.
Having done all this, there is no need to calm down. It is imperative to take the victim to the doctor, even if he is a few kilometers away. The clinic will provide more qualified assistance and will be able to take emergency measures in case of complications.
Of course, you can add some more aspects, covering the question: are there poisonous spiders in Russia and what to do if you encounter them. But this information will be for specialists. Ordinary people need to remember that under no circumstances should they play and have fun with spiders. But you shouldn’t just destroy them either.