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Butterfly setting is the careful process of arranging a preserved butterfly’s wings, body and antennae before allowing the specimen to dry. A well-set butterfly reveals the intricate patterns and proportions of its wings, creating a beautiful specimen for study or display.
Although the work requires patience and a gentle touch, the basic technique is accessible to beginners. This guide explains how to prepare, position and dry an already-dead butterfly specimen. It is not intended for use on live butterflies.
Before you begin, prepare a butterfly setting board with a central groove, an appropriately sized entomological pin, fine forceps, setting needles, tracing-paper strips and ordinary pins for securing the paper.
If your butterfly is dried, you will also need a relaxing container. A clean, airtight box with damp kitchen paper beneath a raised platform can serve this purpose. The specimen must remain above the damp material, without touching it.
A dried butterfly is brittle and should never be forced into position. Relaxing introduces moisture gradually, making the wing joints flexible enough to work with.
Place damp, rather than soaking-wet, kitchen paper in the bottom of your container. Rest the specimen on a raised platform above it, then close the lid.
Check the butterfly regularly. Small specimens may become workable within 12–24 hours, while larger or very dry specimens may require 24–48 hours or longer. Treat these times as a guide, not a fixed schedule.
The specimen is ready when the wings move gently at their bases without resistance. Avoid pressing or bending the wing surfaces to test flexibility. If the joints remain stiff, allow more time. Prolonged damp conditions can encourage mould, so remove the specimen as soon as it is sufficiently relaxed.
Choose a setting board with a groove wide enough to accommodate the butterfly’s body without compressing it.
The supporting surfaces on either side of the groove should meet the wings approximately where they join the thorax. Correct positioning helps the wings lie flat without being pulled unnaturally upward or downward.
Keep your tools and paper strips within reach before transferring the specimen to the board.
Carefully insert an entomological pin vertically through the centre of the thorax, between the wing bases. Leave enough pin above the specimen to handle it without touching the butterfly.
Push the pin into the board’s central groove until the wings rest on the supporting surfaces. Check that the body is straight and the pin remains upright.
If the specimen rotates, place support pins alongside the body. These pins should brace the butterfly without piercing it.
Work on one side at a time. Using a setting needle against a strong vein close to the wing base, gently guide the forewing forward.
For a conventional scientific setting, aim to position the rear edge of each forewing approximately at a right angle to the body. The exact appearance will vary with the butterfly’s natural wing shape.
Avoid pulling on the outer wing edges or touching the patterned surfaces unnecessarily. Butterfly scales rub off easily and cannot be replaced. If a wing resists movement, stop and return the specimen to the relaxing container.
Once a forewing is positioned, lay a strip of tracing paper over it. Secure the strip by placing pins through the paper into the board, outside the wing outline.
The paper should hold the wing flat with gentle, even pressure. Pins must never pass through the wings.
Position the hindwing next, bringing its upper edge just beneath the forewing to create a natural, balanced spread. Secure it with another strip, then repeat the process on the opposite side.
Compare both sides before proceeding. Make small adjustments rather than repeatedly moving the wings.
Use fine forceps or a setting needle to arrange the antennae, usually pointing forward in a shallow V. Place pins alongside them to hold their position without piercing or crushing them.
Check that the abdomen follows the body’s centre line. If it sags, provide gentle support rather than bending it sharply.
Take a final look at the specimen from above. The wings should be balanced, the body straight and the antennae neatly arranged.
Leave the butterfly undisturbed on its setting board in a dry, ventilated space, protected from dust, pests and direct sunlight.
Drying commonly takes around one week, although large specimens and humid conditions may require longer. A protective cover can help, provided it allows air to circulate. Do not seal a damp specimen inside an airtight container.
Patience is important at this stage. Removing the supports too early can allow the wings or abdomen to shift.
Once the specimen is thoroughly dry, carefully remove the securing pins and paper strips. Lift the butterfly by its main entomological pin, never by its wings, antennae or abdomen.
Transfer it to a suitable specimen box or display case. Include a label recording the species, locality, date and source wherever those details are known. If information is missing, leave it unrecorded rather than guessing.
Store the finished specimen away from direct sunlight, excessive humidity and pests to help preserve its colour and condition.
The most important part of butterfly setting is knowing when to stop. A stiff wing needs more relaxing, not more force, and a delicate specimen benefits from fewer, more deliberate movements.
With careful preparation, light handling and sufficient drying time, butterfly setting becomes a rewarding way to appreciate the extraordinary detail of these natural-history specimens.
Turn a delicate specimen into a display you can be proud of with the BugsDirect Butterfly Setting Kit. Whether you’re starting your first collection or developing your preparation skills, it’s a practical starting point for exploring the art of butterfly setting.
Follow our step-by-step guide, take your time and discover the remarkable colours, patterns and detail of your specimen as you arrange its wings for display.
Shop the BugsDirect Butterfly Setting Kit and start your next specimen project.
