Spider jog: photo and effects after a bite
Content
In our area one of the brightest representatives of arachnids is the cross. About 30 species live in Russia. Differ in color, a little size. A characteristic feature is the presence on the abdomen of the pattern in the form of a cross. Whether the spider is a crosser or a crusader is dangerous for a person, it remains to be seen.
Appearance Description
You can meet krestovik in the forest, in the garden, on the field, in the courtyard among the outbuildings.The spider likes a quiet, sheltered from the sun. In the afternoon he sits motionless on the web or hides in a secluded place.
The size of the females is no more than 1 cm, the males are always smaller. The body is painted in brown, gray tones of different shades.
On a note!
On the abdomen there is a pattern in the form of a cross of white, yellow, orange spots, stripes. For this reason, the spider got its name.
The legs are long, powerful, attached to the cephalothorax. The belly is convex, oval. In front of the head are strong chelicera, pedipalps. By chelicera the predator kills the prey, bites, injects poison. Pedipalps - moving tentacles. Them the spider grinds, grinds, grinds food, keeps prey.
Krestoviki belong to the family of orbits. They build trap nets, wait for the victim, sitting on the web, or hang in close proximity. You can often find a spider in the center of his creation in the pose of the letter "X". It is woven over with plants, grass, branches of trees, bushes, leaves.
Lifestyle, behavior
Predators live one by one, gather in pairs for a very short time - during the mating season. Males creep up to the female's web, carefully moving the threads.A hungry spider can easily eat a beau, even before he starts caring. If the chosen one remains in the center of the web, he sits still, you can approach her.
On a note!
After mating, the female forms a cocoon, lays up to 500 eggs in it. He fixes near his refuge, guards. After the birth of the spiders crawl in different directions. The mating period occurs at the end of July, and by the beginning of autumn a young generation appears. Winter in the forest floor, under the bark, hollows of trees.
Feed the crosses by insects. Butterflies, flies, grasshoppers, crickets, wasps, bees, fruit flies, mosquitoes fall into their trap nets. The spider pierces the chitinous cover, injects poison, saliva. The toxic substance causes paralysis of the muscles, immobilizes the victim. Mica turns the insides into a liquid mass, which the predator then drinks.
Poisonous or not
For insects, the dose of poison is deadly. If a spider is bitten repeatedly by a small rodent, death can also occur. The dose of a toxic substance for large animals, humans is not dangerous to life, but a local reaction appears at the site of the bite, and in some people the general state of health worsens.
Krestoviki not aggressive, people do not attack. They try to quietly hide in a secluded place. The bite happens by chance. The spider can crawl under clothing, hide in things that have been in nature. Often at night gets into the shoes. Bites only in case of self-defense. If the touch pad is not touched, no one will suffer.
Bite symptoms
A small spider can not be noticed, but the bite is felt immediately. There is severe pain. Further, the clinical picture develops in different ways, depending on the amount of poison that has entered, the strength of the victim’s immunity, and the propensity for an allergic reaction.
Frequent symptoms:
- pain;
- redness;
- edema;
- swelling;
- two stained blood stains in close proximity.
A photo of the aftermath of a crusader bite is presented below.
If the wound is not sufficiently treated, sponge appears after the spider attack as a result of a secondary infection. Sore spot swells, hurts, increases the scale of inflammation. Complicated spider bite in the photo below.
On a note!
In people who are prone to allergies, with a weakened immune system, young children deteriorate overall health.This is due to the ingress of poison into the general circulation, inadequate response of the immune system.
Appears:
- nausea;
- weakness;
- headache;
- dizziness;
- diarrhea;
- the temperature rises;
- blood pressure rises;
- heartbeat quickens.
The condition normalizes on its own or requires special treatment. A bite spider bites during a week with the right approach.
Important!
Breathing problems from poison does not occur, but if this happens, you should immediately call an ambulance. Toxic substance causes muscle spasm, cardiac, respiratory system suffers. With a minimum dose of poison, strong immunity, this reaction does not develop.
What to do if bit the crossbar
The attack of a spider is almost the same as a bite of a wasp, a hornet. Initially, you need to wash the wound, remove the remnants of poison, disinfect, so as not to get an infection.
First aid after bite:
- Rinse the wound under running water.
- Soap soap, leave for 5 minutes, rinse.
- Wipe the bite with alcohol or tincture based on it.
If you have to act in the wild,use improvised means:
- vodka;
- lemon juice, orange;
- juice of celandine, plantain, dandelion;
- saliva.
On a note!
To remove the swelling, apply ice cubes, cold compress. Eliminate itching, burning, as well as disinfect the damaged area can be a paste of baking soda, a solution of vinegar, shaving foam, toothpaste.
In the future, to speed up the therapeutic effect, a cream, an ointment with an antihistamine effect based on herbs, special substances is used. The wound is treated 2-4 times a day to improve the condition of the skin. The state is normalized in 3 days.
Use:
- balm asterisk;
- Psilo-balm;
- Fenistil gel;
- calendula ointment;
- Menovazine;
- Advantan.
If an infection has got into the wound, ulcers appear, they are treated with local antibiotics - Levomekol, Tetracycline ointment, Elok S.
To eliminate the common symptoms of allergy, they take an antihistamine by mouth — Fenistil drops, Claritin, Diazolin tablets, El Cet, Eden, Suprastin. The treatment lasts 3 days without consulting a specialist. If the condition is not normal, you should consult a doctor.
Rustic bites rarely, but every lover of nature should be aware of the possible consequences. Fast first aid will help avoid complex consequences.