Usually they crush a beetle crawling over exposed parts of microzide, often in a dream. Papular dermatitis is expressed on the first day and subsides after 3-4 days. If hemolymph gets into the eyes, conjunctivitis and blepharitis are possible. Beetles, or beetles (Coleoptera) are a large order of insects, numbering about 25,000 species, among which poisonous ones are also known. Toxic substances produced by beetles, as a rule, are used by them as a means of chemical defense against enemies.
Beetles-blisters Class Insects - Insecta Order Coleoptera, or Beetles - Coleoptera Family Blisters, or Mike - Meloidae Ecology and biology. Poisonous properties are characterized by representatives of microzide pills T-shirts (Meloe), Spanish flies (Lytta), blisters (Mylabris). T-shirts have a large, massive body, short elytra, and a long abdomen. Usually black with a bluish tint or purple.
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In the spring they meet in open places. They parasitize bees. There are more than 40 species in the USSR, including Meloe violaceus March. (Fig. 35). Blisters are common in Central Asia and Kazakhstan, in the Caucasus. The elytra are red or yellow with black bands, the body is usually black with a metallic sheen, densely hairy. The larvae parasitize locusts. Beetles feed on flowers, less often on leaves. More than 70 species are known, including mylabris variabilis Pall. (Fig. 36). Spanish flies Lytta visicatoria L. (Fig. 37) are found in the south of the forest zone.
The beetles have a metallic green body with a bronze sheen, and have a pungent and unpleasant odor. The larvae parasitize bees. Rice. 35. T-shirt purple Meloe violaceus Fig. Fig. 36. Variable blister Mylabris variabilis Fig. 37. Spanish fly Lytta vesicatoria Picture of poisoning. The hemolymph of all blister beetles is poisonous and, in case of danger, they secrete droplets of hemolymph from the holes located between the shins and thighs of the legs (blood spray). However, hedgehogs use blisters for food without harm to themselves. When crushed on the surface of the skin, blister beetles cause dermatitis. The most commonly affected parts of the body are the arms, neck, and face. The hemolymph of T-shirts, shanks and blisters affects mainly the mouths of the follicles, which leads to the formation of hydrochlorothiazide pills with a transition to pustules and the appearance of characteristic large blisters.
The presence of wounds, scratches or moistening of the skin contributes to an increase in the absorbability of the poison and the subsequent development of general symptoms of poisoning. In severe cases, glomerulonephritis, cystitis are possible. There is painful urination. First aid. In case of systemic poisoning, it is recommended to thoroughly rinse the stomach and intestines, after which enveloping agents are prescribed. For extensive skin lesions, open the blisters and disinfect. It is important to observe preventive measures in areas where blisters live. It is best not to take bugs in your hands, and even more so not to crush them. For special work it is necessary to use gloves, masks, glasses. The chemical composition and mechanism of action of the poison. The active principle of the poisonous hemolymph of blisterers is cantharidin. cantharidin For cats and dogs, the DL 50 of cantharidin is 1 mg/kg. The entry of beetles or cantharidin into the digestive tract leads to buy microzide online developing intoxication.
- At autopsy, there is a sharp hyperemia of the mucous membranes, the formation of ulcers and foci of hemorrhage.
- Diffuse lesions are found in the liver and kidneys. The observed stagnation in the central nervous system causes disturbances in conditioned reflex activity and the development of paralysis in experimental animals.
- From 100 g of dry skewers, the yield of cantharidin is 0.3-1.5 g. In the past, cantharidin preparations were used to prepare blister plasters.
- Coastal staphylin Paederus riparius Picture of poisoning. Hemolymph is poisonous and, when it comes into contact with the skin, causes papular dermatitis that affects the deep layers of the skin without abundant serous fluid.
- Usually they crush a beetle crawling over exposed parts of the body, often in a dream. Papular dermatitis is expressed on the first day and subsides after 3-4 days.
- If hemolymph gets into the eyes, conjunctivitis and blepharitis are possible. First aid. Lotions are recommended with a warm solution of moreacid. Chemical composition and mechanism of action.
The active principle of hemolymph is pederin. pederin In addition to pederin, its derivatives pseudo-pederin, pederon, and others have biological activity. Pederin is able to block protein synthesis in the cytoplasm of eukaryotes. When pederin enters the digestive tract, enteritis is observed. The kidneys are affected to a lesser extent than with cantharidin poisoning. Colorado potato beetle - Leptinotarsa decemlineata Say. (Fig. 39) Class Insects - Insecta Order Coleoptera, or Beetles - Coleoptera Family Leaf beetles - Chrysomelidae Ecology and biology.
Small beetles 9-12 mm long. The body is colored from dirty yellow to light yellow. Head with black spots. Elytra with black stripes. Common on nightshades. Dangerous potato pest. Rice. 39. Colorado potato beetle Leptinotarsa decemlineata Picture of poisoning. Hemolymph is poisonous to invertebrates and vertebrates. In a house fly, when 1 μl of beetle hemolymph is injected, death occurs within 1 hour. Administration of lyophilized hemolymph to mice at a dose of 25 mg/kg causes contracture of the abdominal muscles at the injection site, adynamia, and difficulty breathing.
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Before death, convulsions, rotational movements develop. The heart stops in diastole. In rats, a progressive decrease in body temperature is observed until the moment of death. The hematocrit increases by 45-70%, the content of urea in the blood serum increases by 2 times, and the activity of aspartate aminotransferase and lactate dehydrogenase increases significantly. The electrolyte balance of plasma is disturbed in the direction of hyperkalemia and hypercalcemia. The chemical composition and mechanism of action of the poison. The active principle of the poison is a protein with M r.
