The season of a firefly comes around in Japan at the beginning of a rainy season. This firefly is a species called Luciola parvula, and repeats blink. It's called a "Hime-HOTARU" at Japan. This species flies in the beautiful forest. But, the firefly in bamboo forest is valuable. This bamboo forest exists in far in the mountains secretly in the Shikoku island. I took these photos by using composite technique and high ISO speed under the weak moonlight. Exposure time would exceed total 30 minutes.