Category: Fiji

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Fiji Periodical Raiateana Stamps Tacuini (Cryptotympanini)

The Nanai Cicadas of Fiji are back after 8-years! Fiji is issuing stamps to celebrate

The Nanai cicadas (Raiateana knowlesi (Distant, 1907)) of Fiji are back after 8-years, and Fiji is issuing stamps to celebrate their emergence.

Update! If you want to see what the Nanai look like, visit the Cicada Discussion, Science and Study Group on Facebook and view Elias Bonaro’s 9/22 post.

Nanai cicadas are special because they have an 8-year periodical cycle. They are found in the hills of Viti Levu island of the Fiji archipelago. They are also special because of the Legend of The Nanai and their importance to Fijian culture.

2025 Nanai Stamps

2025 Nanai stamps will be available from Post Fiji Pte Limited. They start shipping on the 25th of September (new date). See this BROCHURE – THE NANAI EMERGENCE for more information.

FDC - The Nanai Emergence

Nanai brochure cover

Nanai Cicadas Stamps from 2009

Here’s an image of Nanai stamps from 2009 (or maybe 2010):

Nanai stamps

More information about the Nanai

How do the Nanai (Raiateana knowlesi) compare to other cicadas around the world

The Nanai are similar to Magicicada cicadas in the United States in that they have precise periodic lifecycles. Nanai have 8-year cycles and Magicicada have 13 or 17-year cycles.

The Nanai are similar to North American Dog-Day cicadas, European Lyristes plebejus, and the Tacua speciosa of Malaysia & Indonesia, in that they belong to the same Tribe (Tacuini) and share similar anatomy like hidden tympani (the noise makers).

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Fiji Periodical Raiateana Tacuini (Cryptotympanini)

Fiji 8-year periodical Nanai aka Raiateana knowlesi

Fiji $100 note

This cicada will next emerge in 2025.

Update (11/4/2017): from Facebook, it looks like folks are finding them. Here’s an image.

Update (9/13/2017): the Nanai have begun to emerge! This cicada last emerged in 2009 in Nadroga-Navosa and Serua Provinces, and now again emerge in 2017.

Notes from Chris Simon:

Early this morning I got the first Reports of the 8-year periodical Nanai emerging in Navosa, Fiji! Some people in that area had them for dinner.

This confirms earlier reports of the eight-year periodicity. There was some uncertainty because the original specimens were dated (1906) a year later than they would be if on the current 8-year schedule.

Duffels and Ewart (1988, The Cicadas of the Fiji, Samoa, and Tonga Islands, their taxonomy and Biogeograohy) noted that “Until recently the present species is only known from three males collected in “Fijii” in 1906 by C. Knowles.” Duffels was not able to describe them when he first saw the specimens because they were missing the male genitalia. After obtaining, “a series of females and two males” from Dick Watling and Andrew Laurie in 1986, Duffels was able to assign it to the genus Raiateana. There is one other species of Raiateana in Fiji, R. kuruduadua (two subspecies in Fiji and one in Samoa) but it is not periodical as far as we know.

You might be familiar with American periodical cicadas (Magicicada) and the World-cup synchronized Chremistica ribhoi of India, but Fiji has a periodical cicada too: the 8-year periodical Nanai cicada aka Raiateana knowlesi.

It also appears on Fiji’s $100 note.

There’s even a local legend about the cicada.

More information:

Thanks to Chris Simon of the University of Connecticut for this information.

More shots of the Fiji $100 note and the folder it comes in:

Fiji $100 note

Fiji $100 note