Stigmella nakamurai
Encyclopedia
Stigmella nakamurai is a moth
of the Nepticulidae
family. It is only known from Hokkaido
in Japan
.
Adults are on wing in August. There is probably one generation per year.
The larvae feed on Ulmus davidiana var. japonica. They mine the leaves of their host plant. The mine is located on the upper-side of the leaf and is linear and usually dark brown in older mines. The mine is filled with coiled or dispersed frass, except on extreme margins of mine. The first half of the mine is much contorted, with convolutions contiguous. The second half is less contorted and often sinuous or nearly straight.
Moth
A moth is an insect closely related to the butterfly, both being of the order Lepidoptera. Moths form the majority of this order; there are thought to be 150,000 to 250,000 different species of moth , with thousands of species yet to be described...
of the Nepticulidae
Nepticulidae
Nepticulidae is a family of very small moths with a worldwide distribution. They are characterised by eyecaps over the eyes . These pigmy moths or midget moths, as they are commonly known, include the smallest of all living moths, with a wingspan that can be as little as 3 mm...
family. It is only known from Hokkaido
Hokkaido
, formerly known as Ezo, Yezo, Yeso, or Yesso, is Japan's second largest island; it is also the largest and northernmost of Japan's 47 prefectural-level subdivisions. The Tsugaru Strait separates Hokkaido from Honshu, although the two islands are connected by the underwater railway Seikan Tunnel...
in Japan
Japan
Japan is an island nation in East Asia. Located in the Pacific Ocean, it lies to the east of the Sea of Japan, China, North Korea, South Korea and Russia, stretching from the Sea of Okhotsk in the north to the East China Sea and Taiwan in the south...
.
Adults are on wing in August. There is probably one generation per year.
The larvae feed on Ulmus davidiana var. japonica. They mine the leaves of their host plant. The mine is located on the upper-side of the leaf and is linear and usually dark brown in older mines. The mine is filled with coiled or dispersed frass, except on extreme margins of mine. The first half of the mine is much contorted, with convolutions contiguous. The second half is less contorted and often sinuous or nearly straight.