筆者は2023年3月20日モンキチョウの雌雄同モザイク個体を狭山市入間川笹井ダム左岸で採集したので報告する。
モンキチョウの雌雄モザイクの報文は1893年Leechにより初めて報告された。その後1942年Yokotaが昆虫界に報告、続いて1952年Omotoga北海道で採集した。翌年1953年Saitoが青森県で採集。以降モンキチョウの雌雄モザイクの報文はない。この間の報文は4例にとどまる。
筆者の今回の報告は5例目である。
On the reports regarding the mosaic of male-female, Gynandromorph,
of Colias erate poliographus Motshulsky
Katsuhiko NAKAJIMA
Discussion
The author collected male and female mosaic butterflies (here in after referred to as Gynandoromorph) on May 20, 2023. The right wing was female pattern and the left wing was male pattern. The collection location is the left bank downstream of the Sasai-Dam on the Iruma River in Sayama City, Saitama Prefecture, Japan.
First report on the Gynandromorph of Japanese Colias butterfly was written 130 years ago in 1893 by Leech.J.H, who observed speciments from Japan (Pryer’s Collection). *¹
Fifty years later, in 1942, Eizaburo YOKOTA reported on a gynandromorph with left female type and right male type (this is the opposite pattern to the left and right types of individuals examined by the author). *²
Later years, on July 21, 1952, Keiichi OMOTO collected a Gynandromorph with a left male type and a right female type at near Antaroma Station in Aibetsu Town, Kamikawa District, Hokkaido. *³
The following year, in 1953, Kazuo SAITO observed and examined an individual collected in Minamitsugaru Village, Aomori Prefecture, and wrote a report recognizing it as a Bilateral Gynandoromorph. *⁴
Only 4 cases have been reported in the 60 years since the report by Leech.J.H.
Since then, many Gynandoromorphs have been reported in Butterflies, Moths, Coleoptera, Orthoptera, Crustaceans, Birds, etc., and there are many images of them. However, to date, the author has not found any reports of Gynandoromorph of Colias erate poliographus Motschulsky.
Reports of Gynandoromorph of Colias erate poliographus Motschulsky are thought to be limited to fewer than 100 cases over the past 130 years.
In addition, the scientific name of the Japanese Colias butterfly is Colias erate poliographus Motshulsky, and the English name is Eastern pale clouded Yellow.
The scientific name of the Eurasian Colias is Colias hyale poliographus, and the English name is Pale clouded Yellow. The pattern is the same as, Japanese Colias but it is slightly smaller.
*¹Butt.China,Japan and Corea,2:436 1893：written as Colias hyale poliographus Motschulsky
*²昆虫界10：519 1942
*³The University Museum, The University of Tokyo, News Vol.18, No.2 2013 On the OMOTO’s Collection
*⁴The Entomological Society of JAPAN Vol.20 Nos.1・2 1953：written as Colias hyale poliographus Motschulsky
October 17, 2023
