Following the re-issue of the bird sheetlets, Myanmar Post released the next set — a beautiful sheetlet featuring 11 species of butterflies of Myanmar.
Because the total number of stamps is 11, designing a balanced layout was quite a challenge. Myanmar Post adopted a 3 – 1 – 3 – 1 – 3 column arrangement, making each sheetlet the same width as a standard stamp sheet (which normally consists of 10 rows × 5 columns).
This unusual size also posed a difficulty for first day covers (FDCs). As Myanmar Post did not issue official FDCs for this release, collectors produced their own handmade covers, most of which were in larger-than-usual sizes to accommodate the sheetlets.
The stamps were officially issued on 20 September 2025. A particularly interesting aspect of this issue was the use of three distinct first-day postmarks:
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Nay Pyi Taw CTO
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Yangon GPO
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Mandalay GPO
