Can insect specimens be preserved permanently? There are two main methods to make insect specimens: needle insertion method and liquid immersion method. Insect specimens can also be placed in the same glass cover with dried plants and flowers. Can the following shared insect specimens be preserved permanently?

Can insect specimens be preserved permanently? 1 The last procedure of making insect specimens is to save the specimens, add a proper amount of moth-proof and mildew-proof chemicals to the prepared specimens, and then insert labels. If the number of specimens is large, it is necessary to classify the specimens into insect specimen boxes and store them in dry and dark places. If you want to make an insect ecological landscape box, you can also put insect specimens, dried flowers and hay in the same glass cover or in other art boxes.

Most museums, laboratories and scientific research departments keep insect specimens in insect specimen boxes and then put them in storage cabinets. Because the specimens need to be preserved for a long time, it is necessary to do a good job of maintenance, otherwise it will affect the life of the specimens. The core content of specimen maintenance is moistureproof, dustproof, insect-proof and pollution-proof, and the difficulty of maintenance is insect-proof. In the season of high temperature and high humidity, insects are more active, which is the key period of specimen maintenance.

The preservation of insect specimens should be mildew-proof, insect-proof and dustproof, and the specimen box itself is also very important. The insect specimen box provided by Top Yunnong not only has high technical level, but also has good after-sales service and high-quality solutions. Made of natural pine wood, polished, smooth and firm, durable, not easy to deform, suitable for long-term preservation of specimens.

The box cover is made of transparent plexiglass, which can be used for centralized observation and comparison of specimens; It uses wood double-sided mosaic technology to make buckles, which increases the sealing performance and aesthetics of the box; There is also a layer of soft mold light plate at the bottom of the box, which is used for inserting pins and storing specimens.

The box is well sealed. Just put mothballs and moistureproof agent in it. It can be preserved for a long time. Direct sunlight will lead to fading. Therefore, specimen preservation needs to avoid direct sunlight. As long as attention is paid to moth-proofing and moisture-proofing, insect specimens can be preserved almost permanently.

Can insect specimens be preserved permanently? How to preserve insect specimens?

Methods 1 Insects were preserved with alcohol for external use.

1. Fill half of the small glass jar with alcohol.

External use of alcohol can prevent corrosion, dehydration and decomposition of insect carcasses into pieces. Glass jars must be bigger than insects, but not too big. If the jar is big and the bugs in it are small, you will waste a lot of alcohol.

Most alcohol solutions for external use have a concentration of 70%, which is suitable for preserving insect carcasses. You can also use alcohol with higher concentration, such as 80% or 85%. Some insects are better preserved in high-concentration alcohol.

Insects suitable for preservation in high-concentration alcohol include spiders, scorpions, earthworms, and small-headed insects such as lice and moths.

The glass jar must be tightly covered, and there must be no cracks in the jar.

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. First, try to log in to BugGuide.net or InsectIdentification.org for inquiry. If you can't find the answer on either website, consult your local entomologist.

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.

Method 2 Preserve insects with hands-free disinfectant.

1, disposable disinfectant hand sanitizer is poured into the jar.

The function of hand sanitizer is similar to that of alcohol, and it also has the function of antisepsis and preventing insect carcasses from being broken. However, the density of hand sanitizer is higher than that of alcohol, and the dead bodies of insects will be suspended in jars, so the specimens made are more attractive and easier to observe.

Choose a glass jar bigger than a bug, but not too big, otherwise it will waste hand sanitizer.

2. Put the insect carcasses in hand sanitizer.

Don't touch insects directly with your hands. The correct way is to catch insects with tweezers or pliers. Gently press the insect carcass into the hand sanitizer until it is suspended in the gel-like liquid.

When pressing fragile insects such as bees or wasps into hand sanitizer, be careful not to damage wings or other parts of the body.

It may be difficult for butterflies and other large insects with hard body surfaces to be preserved with hand sanitizer, because the gel-like liquid will cause the insect's body to break. Although some insects with hard surfaces can also be preserved with hand sanitizer, try to avoid soft and protruding insects such as wings or tentacles when choosing preservation objects.

3. Boil the glass jar to remove bubbles.

Bubbles in hand sanitizer will affect the appearance of specimens. In order to remove bubbles, you need to prepare a milk jug. Pour 2.5-5 cm deep water into the pot, boil water over high fire, then put the glass jar (with hand sanitizer in it and insect carcasses floating on the surface of hand sanitizer) into boiling water, and simmer for 15 minutes. Don't put the lid on, or the glass jar will break.

Be careful not to let water into the jar, because water will affect the preservation effect or dissolve the hand sanitizer.

Many people think that bubbles will affect the appearance and make people unable to concentrate on observing insects. If you don't care if there are bubbles in the jar, skip this step.

4. Fill the jar with hand sanitizer.

Take the jar out of the boiling water, dry it to room temperature, then pour in more hand sanitizer to drown the insect carcasses and fill the jar. Then put tweezers or pliers into hand sanitizer and adjust the posture of insects according to your own preferences. Put a label on the outside of the glass jar and screw on the lid, so that the specimen is ready.

Under the supervision of adults, children can hold the specimen jar in their hands for observation. This canned specimen is most suitable for display in museums or outreach activities.

Can insect specimens be preserved permanently? 3 how to make insect specimens: when insects are active, we can't observe its external morphological characteristics carefully, let alone its internal morphological structure, so making insect specimens can be used for observation. Classification and identification of insects need long-term preservation. Under proper treatment, the dried specimens of insect needles can keep the identification characteristics for observation for a long time. Alcohol soaking can preserve molecular experimental materials, so insect specimens can also be used to preserve physical objects.

When collecting insects, you need to stay in the triangle bag/cotton bag, which means you need to die. We usually use a poison bottle filled with ethyl acetate gas. For very small insects, it can be directly dropped into alcohol to dehydrate to death (it is mostly used for Coleoptera insects with physical color, and this method is forbidden for Lepidoptera). But no matter which method is used, the posture of insects after death is inevitably "ferocious", especially because their feet are curled up and cannot be directly used for observation. Therefore, we should adjust our posture when making specimens, that is, the whole posture of specimens.

Making insect specimens: Insects collected from the field have been stored for a period of time before being made into dry specimens, and their bodies are hard and brittle, so they must be softened before being made into specimens to avoid breaking and breaking. It is suggested that the softener is simple and convenient, and will not damage the specimen.

If the dryer is still soft, first spread wet fine sand on the bottom of the dryer, and then wrap triangular paper containing insects on the porcelain plate in the dryer. In order to prevent the specimen from moldy, drop a few drops of carbolic acid or formaldehyde solution on the sand surface, and then cover it tightly.

Insects can use a homemade softener in a jar, put a filter paper in the wet sand in the jar, and then put a triangular paper bag full of insects on the filter paper. If there are not many insects that need to be softened, you can also wrap a layer of moist pure land with triangular paper and cover it with a glass cover for softening. No matter what kind of container is used, it can make insects soft as ever for one or two days in summer and two or three days in winter.