What percentage of alcohol is used to preserve insects? There are two main methods to make insect specimens: acupuncture and liquid immersion. Insect specimens can also be placed in the same glass cover with dried plants and flowers. What percentage of alcohol is used to share and preserve insects?
What percentage of alcohol is used to preserve insects? 1 is the method of making insect specimens.
1, medical alcohol is canned in glass. Medical alcohol can preserve insect specimens without deterioration, water loss and deterioration. This container jar should be bigger than an insect, but it doesn't need to be particularly big. If you put a small insect in a big jar, you will waste a lot of medical alcohol.
About 70% purity can be used to preserve insect specimens. Of course, higher purity is also possible. Alcohol with higher purity is more suitable for preserving specimens. Some insect specimens need to be preserved in high-purity alcohol, such as spiders, scorpions and earthworms. Make sure the lid of the glass jar is very tight and there is no gap.
2. Find a dead insect and remember that soft insects are put in alcohol. Insects can be obtained from many places, including your window, the surrounding environment, or the spider webs nearby. You will keep the insect specimens alive. If insects have been dead for a few days and begin to rot or break, there is no point in preserving them. You can also prepare your own insects. There are many ways, such as catching butterflies and using butterfly nets. The method of designing traps is effective.
3. Identify and mark your insects. It is important to know the species of insects when preserving them. This is also a very important process to preserve insect specimens for scientific research. The label should include the species, date and generation of the insect and the name of the discoverer. Stick the label on the outside of the glass jar. There are many websites that provide information about insects to help you understand them.
4. Carefully put the insect specimen into the glass jar. Insect specimens are fragile and easily damaged. The best way is to use tweezers to prevent fingers from damaging insect specimens. If insects have stinging needles or other poisonous parts, handle them with gloves.
5. Now fill the remaining space with alcohol. This work is only done once when the insects are put into the glass jar. Pour in the alcohol slowly. If you pour it too fast, the liquid may destroy the insect specimen. Cover it and store it in a safe place. If you want to start a large-scale insect collection, you'd better use cans on the whole desktop. Store insect pots away from food, children and animals.
6. Fill two-thirds of the glass jar with hand sanitizer. Hand sanitizer, like alcohol, can store insect specimens and preserve them to avoid corruption and damage. However, the concentration of hand sanitizer is different from alcohol, which will make insect specimens hover and make it easier for people to observe. Use a large enough glass jar to preserve suspended insects, but don't waste too much hand sanitizer.
7. Put insect specimens into hand sanitizer, and avoid direct hand operation. It is recommended to operate with tweezers. Gently put the insect specimen into the jar until it is suspended in the hand sanitizer. If you are putting an insect specimen, such as a bee, be careful not to destroy its wings when you put it in a jar. Larger insect specimens, such as butterflies, may not be easy to put into the jar, and hand sanitizer may stick to some parts of the insect's body and be difficult to handle. Don't let it stretch out its wings or tentacles when storing.
8. Boil the jar with hot water before use, and remove bubbles after adding hand sanitizer. Put 5cm of water into the pot, bring to a boil, and put the jar into the water15min. Remember to open the lid to avoid explosion. Avoid water from entering the jar, which will dissolve the hand sanitizer.
9. Fill the jar with hand sanitizer. Once you take the jar out of the water, let it cool to room temperature and pour in hand sanitizer until the insect specimen is suspended in the jar. Once the jar is full, you can adjust the position of the insect with tweezers until it becomes your favorite position. Put a label on the outside of the jar and cover it, and the preservation work is completed.
Buy pins and foam. Insect pushpin is a special kind of pushpin, made of special steel and about 3 cm long. Very fine to avoid damaging the specimen. Any type of foam should be used to embed insects, and the density is suitable for fixing thumbtacks. Prepare thumbtacks and foam in advance.
1 1. Nailing insect specimens on thumbtacks can effectively preserve hard insect specimens, including beetles and cockroaches. The thumbtack goes through the insect's chest. If you repair a beetle, go through its middle and make a right wing.
12. Make a label. Find out the species of insects and print out the labels. Pay attention to the place of origin and date. Some people who find it will also attach information about its environment, such as on the leaves of plants or under logs.
13. Fix insects and labels on the foam. Simply insert the thumbtack into the foam until it is fixed. Be careful not to destroy insect specimens in this process. Then, fix the label under the insect with tape or thumbtack.
What percentage of alcohol is used to preserve insects? 2 how to preserve insects when they are dead?
1. Fill half of the small glass jar with alcohol.
Most alcohol solutions for external use have a concentration of 70%, which is suitable for preserving insect carcasses. You can also use a higher concentration of alcohol, such as 80% or 85% alcohol. Some insects are better preserved in high-concentration alcohol. Insects that are more suitable for storage in high-concentration alcohol include spiders, scorpions, earthworms, lice, moths and other small insects.
2, looking for insect carcasses.
Remember, soft-bodied insects are usually kept in alcohol. Insect corpses are everywhere, such as in window frames, around houses, or on cobwebs. Only intact bodies have the value of preservation. After many days of death, the preservation effect of insect carcasses that have begun to rot or break is not very good. You can also catch insects by yourself in many ways, such as catching butterflies or moths with nets. Some people object to killing insects in order to make specimens. They think this behavior is immoral, but active capture is a good way to get the dead insects.
3. Identify and mark insect species.
Since we want to make insect specimens, we should know what kind of insects are in front of us. This is even more important if the purpose of preserving insect carcasses is scientific research. Write down the genus and species of insects, the place and time of collection, and the name of the collector on the label. Finally, put a label of complete confidence on the glass jar filled with alcohol. Many websites can help you identify the species of insects.
4. Carefully put the dead insects into the jar.
Pay attention to your movements and handle them with care: insect carcasses are very fragile and will be crushed if you are not careful. You'd better pick up the insect carcass with pliers or tweezers, because your fingers may break or crush a part of the insect carcass. If insects have stings (bees or wasps) or are poisonous, wear silicone gloves when touching them.
5. Fill the remaining space of the glass jar with alcohol.
Don't pour alcohol until the insect body sinks to the bottom of the tank. Pour the alcohol slowly. If you pour it too fast, it will wash away the dead insects. Close the lid tightly and put the glass jar in a safe place. If you plan to make a large number of insect specimens, you'd better clear out the whole desktop to place the specimens.
Specimen jars should be kept away from food, children and pets.
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How to make specimens by acupuncture
1. Selecting insect needles According to the different sizes of insect specimens, choose the appropriate insect needles. ...
2. The position of the needle is generally based on the right side of the insect's middle chest. ...
Spread your wings Some insects need to spread their wings, such as butterflies and dragonflies. ...
4, full posture Some insects do not need to spread their wings, such as ants, scarabs and so on. ...
5. Drying When the specimen completes the above actions, it is almost ready, and the remaining work is to dry the specimen.
Alcohol used to preserve insects accounts for only a few percent of the methods of preserving insect specimens.
I. Stored equipment
1) specimen box: the specimen box for storing insect adults is made of glass wood, surrounded by lacquer cloth, and the bottom of the box is lined with cork or foam. Put a camphor block in one corner of the box and fix it with insect needles obliquely inserted around it.
2) Specimen cabinet: wooden, with two opposite doors, and a large number of fumigation pesticides or dehumidifiers can be stored at the bottom of the drawer.
3) Drugs used for preservation: quicklime, camphor block, alcohol, carbolic acid, dichlorvos, xylene, etc.
Second, save the matters needing attention
1) moistureproof and mildewproof: put a dehumidifier in the specimen box or cupboard or install a dehumidifier indoors. If the specimen is moldy, you can brush it with a soft brush dipped in a mixture of anhydrous alcohol and carbonic acid (7:3) or directly with anhydrous alcohol.
2) Prevention of rodents and insects: It is relatively easy to prevent rodents, but it is necessary to pay attention to the fact that the box cover of the specimen should be tightly closed and less open, and the strong smell of insect repellent or pesticide should be kept in the box at all times. If there are specimens of existing insects, the moth can be killed by soaking dichlorvos in cotton wool, putting it in a specimen box, covering the box cover and fumigation for a few days.
3) Dust prevention and sun protection: the box body is opened and closed less, and dust falls into nature less; The doors and windows should be opened less, and curtains should be added to the windows to prevent the specimens from direct sunlight, which can prolong the fading time due to sunlight.
4) In order to protect the specimen from damage, it is best to check it at any time and fumigate it with chemicals 1~2 times a year.