This consummate summer subject, painted by Nagoya literatus Yamamoto Baiitsu in his mature period, shows his mastery of the "boneless" brushwork technique and his deft powers of observation. Each of the more than fifty insects on this scroll, many lifted lightheartedly from the pages of the Chinese Mustard Seed Garden Manual, are given life and movement through the most economical of painted means. The composition, too, is particularly effective, launching the flying and crawling insects across the horizontal space in an extended arabesque.
At the end of the scroll, on the left, the artist's signature and date are given.
Signature: Artist's signature and dated "the day after the fifteenth day of the eighth month of 1847"; three artist's seals.
Inscription: Colophon: in running script by Nakanishi Koseki (1812–1883), a Chikuzen (present-day Fukuoka Prefecture) literatus: "Although I prefer not to make comments on Baiitsu's works, this is the first handscroll of his I have seen like this one of grasses and insects. It must have brought solace and calm to viewers in recent years. It may well be the best of the masterpieces by this old man. My graceful friend of the hundred peaks should treasure it. The year is 1862 in the first ten days of the fourth month, the ascetic Koseki inscribed this at the River Crashing Around Rocks and Mountains Studio"; three seals, all Koseki's: "The river crashing around rocks and mountains [studio name of Nakanishi Koseki], "true seal of [Naka]nishi Ju" and "Koseki Dojin".
Frontispiece: four-character, in Chinese, Tai sheng lien ying (Shadows entwined with their voices) written by Haikai poet Koson, original owner of the scroll; dated "1862, the first month of summer"; signed "An old line taken from a Tang poet, inscribed by the Ascetic of the Hundred Peaks"; three seals, presumable Koson's: "The Woodcutter of the One Hundred Peaks", "The seal of Bokugei" and "Pen name Yuchiku".
Marking: On colophon: three seals, all Koseki's: "The river crashing around rocks and mountains [studio name of Nakanishi Koseki], "true seal of [Naka]nishi Ju" and "Koseki Dojin".
On frontispiece: three seals, presumable Koson's: "The Woodcutter of the One Hundred Peaks", "The seal of Bokugei" and "Pen name Yuchiku".