''Lymantria dispar japonica'', also known as the Japanese gypsy moth is a moth in the family

Erebidae The Erebidae are a family of moths in the superfamily Noctuoidea. The family is among the largest families of moths by species count and contains a wide variety of well-known macromoth groups. The family includes the underwings ('' Catocala'') ...

of Eurasian origin.

Taxonomy

''Lymantria dispar japonica'' was originally described as a variation of ''

Lymantria dispar ''Lymantria dispar'', also known as the gypsy moth or the spongy moth, is a species of moth in the family Erebidae. ''Lymantria dispar'' is subdivided into several subspecies, with subspecies such as ''L. d. dispar'' and ''L. d. japonica'' bei ...

'' by

Victor Motschulsky Victor Ivanovich Motschulsky (sometimes Victor von Motschulsky, russian: link=no, Виктор Иванович Мочульский, 11 April 1810, in St. Petersburg – 5 June 1871, in Simferopol) was a Russian entomologist mainly interested in ...

in 1860. It was treated as a full species by Kirby in 1892 and Swinhoe in 1903. Strand in 1911 and again in 1923 treated ''L. d. japonica'' as a subspecies of ''L. dispar'', since then other authors (Inoue 1957, Schintlmeister 2004) have also recognized the form from Japan as ''L. d. japonica''. The basis for having ''L. d. japonica'' as its own species, separate from ''Lymrantria dispar'', comes from the difference in size and the partial incompatibility between crosses of ''L. d. dispar'' and ''L. d. japonica''.

Range

Found in

Japan Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...

on all four major islands,

Honshu , historically called , is the largest and most populous island of Japan. It is located south of Hokkaidō across the Tsugaru Strait, north of Shikoku across the Inland Sea, and northeast of Kyūshū across the Kanmon Straits. The island separ ...

Shikoku is the smallest of the four main islands of Japan. It is long and between wide. It has a population of 3.8 million (, 3.1%). It is south of Honshu and northeast of Kyushu. Shikoku's ancient names include ''Iyo-no-futana-shima'' (), '' ...

Kyushu is the third-largest island of Japan's five main islands and the most southerly of the four largest islands ( i.e. excluding Okinawa). In the past, it has been known as , and . The historical regional name referred to Kyushu and its surroun ...

and parts of southern and western

Hokkaido is Japan's second largest island and comprises the largest and northernmost prefecture, making up its own region. The Tsugaru Strait separates Hokkaidō from Honshu; the two islands are connected by the undersea railway Seikan Tunnel. The la ...

Oviposition

Eggs Humans and human ancestors have scavenged and eaten animal eggs for millions of years. Humans in Southeast Asia had domesticated chickens and harvested their eggs for food by 1,500 BCE. The most widely consumed eggs are those of fowl, especial ...

are similar to ''Lymantria dispar dispar''; they range from yellow to a dark brown or chocolate brown. The location of eggs varies by region. In the Tonko region of Honshu, eggs are commonly laid on

white birch ''Betula papyrifera'' (paper birch, also known as (American) white birch and canoe birch) is a short-lived species of birch native to northern North America. Paper birch is named for the tree's thin white bark, which often peels in paper like ...

trees. In the

Nara prefecture is a prefecture of Japan located in the Kansai region of Honshu. Nara Prefecture has a population of 1,321,805 and has a geographic area of . Nara Prefecture borders Kyoto Prefecture to the north, Osaka Prefecture to the northwest, Wakayama P ...

, eggs are commonly laid high up in the trees, while in the

Gumma prefecture is a prefecture of Japan located in the Kantō region of Honshu. Gunma Prefecture has a population of 1,937,626 (1 October 2019) and has a geographic area of 6,362 km2 (2,456 sq mi). Gunma Prefecture borders Niigata Prefecture and Fukushima P ...

, eggs are typically laid within 60 cm from the ground. On a larch plantation in Tamayama,

Iwate Prefecture is a prefecture of Japan located in the Tōhoku region of Honshu. It is the second-largest Japanese prefecture at , with a population of 1,210,534 (as of October 1, 2020). Iwate Prefecture borders Aomori Prefecture to the north, Akita Prefectur ...

, eggs were commonly laid below 1 m on the trunk of the tree in positions of low illumination and lower temperatures.

References

{{Taxonbar, from=Q6708127 Lymantria dispar Subspecies Moths of Japan