The A – Z Of Insects Arthropods Arachnids

The class Archinka is a group of over 100,000 species,

including spiders, scorpions, ticks, and mites. Most arachnids are adapted for hunting with poison garlands, stingers, or fangs. Like crustaceans, Arachnids have a body divided into a cephalothorax and an abdomen.

Attached to the cephalothorax are 4 pairs of legs, a pair of chelates and a pair of appendages called pedipalps. Pedal aid in chewing; In some species, pedipalp is specialized to perform other functions. The incomplete undergoes a metamorphosis. Class Arachnida includes 3 orders of medical importance:

1. Order Scorpion
2. Order Araneae (Spiders)
3. Order Acari (Tick and Mite)

A scorpion is a familiar group of buckwheat, whose pedipalp turns into pincers.

Scorpions use these pincers to handle their food and tear it down. The scorpion venomous stings are used mainly to reduce their prey and usually in self-defense. The sting is located in the terminal segment of the body, tapering towards the end. The scorpion’s elongated, joint abdomens are distinctive; In most cooks, the abdominal segments are more or less joined together and appear as a single unit. Adults of this order of Arachnids range in size from 1 to 18 cm.

There are about 1200 species of scorpions,

all terrestrial, which occur worldwide, although they are common in tropical, subtropical and desert regions. The scorpion courtship is elaborate, in which the sperm is fixed by the male in a substrate and then picked up later by the female. The young are born alive with 1 to 95 in a liter. Scorpions differ from spiders in two ways.

The scorpion has greatly enlarged the pedipalp, which they position in front. He has a large stinger on the last segment of the abdomen. Most scorpions hide during the day and hunt at night. The scorpion seizes its prey with its pincer-like pedipalps. Fang then injects paralyzed venom, tears the cheerleader prey, swallows the animal, and begins digestion. Only a few species have a sting that can be embryonic to humans. They do not sting a man unless attacked.


Local signs of bites include severe pain, swelling, and swelling. Sweating, nausea, and vomiting are common systemic symptoms. Muscle spasms and convulsions can occur in severe cases. Fatalities are caused by respiratory failure, pulmonary edema, and shock.

  1. Control
  2. Pesticide spraying


There are about 25,000 named species of spiders (Order Aranea). These animals play a major role in all terrestrial ecosystems, where they are particularly important as predators of insects and other small animals. Spiders hunt their prey or capture it in webs. The webs of silk are made from a fluid protein that is forced out of the spinner, the modified appendage on the back of the spider’s abdomen.

Spiders have poison glands through their smallpox, which gestures and bites and paralyzes prey. Some members of this order, such as the Black Widow Spider (Latrodectus mactans), Australia are the Black Widow Spider (Latrodectus Seville), Caracart (Latrodectus trudissimgutatus), Brown Reculus (Loxoscleus recluse), Tarantula (Lycosa singorensis).

For humans and other large mammals.

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