Tengusukeba (English spelling) long-nosed planthoppers

Japanese: テングスケバ - てんぐすけば(英語表記)long-nosed planthoppers
Tengusukeba (English spelling) long-nosed planthoppers

A general term for insects in the order Hemiptera, suborder Homoptera, family Dictyopharidae, or a type of insect in the family. Insects in this family are 5 to 15 millimeters long, and most have a protrusion on their head that extends forward. Their wings are transparent, but they may have large dark patterns. There are about 450 known species in the world, mainly in tropical regions, and about five species are known to be native to Japan.

The Tengusukeba Dictyophara patruelis is 10-13 mm long, light green in colour, and has a head that protrudes strongly forward. It has four orange stripes on its thorax and back. Its wings are transparent. It inhabits grasses and is often found on mulberry, sugarcane and rice. It is distributed in Honshu, Shikoku, Kyushu, the Ryukyu Islands, Taiwan and the Korean Peninsula. The closely related Nakano Tengusukeba D. nakanonis was discovered in Nakano, Tokyo and is said to inhabit oak trees, but its numbers seem to be small. Other known species include the Tsumagurosukeba Orthopagus lunulifer, which is common on Mallotus jasmine, and the Kuro Tengusukeba Saigona ishidai, which is found on willows and alders in mountainous areas.

[Masami Hayashi]

Source: Shogakukan Encyclopedia Nipponica About Encyclopedia Nipponica Information | Legend

Japanese:

昆虫綱半翅(はんし)目同翅亜目テングスケバ科Dictyopharidaeの昆虫の総称、またはそのなかの一種。この科は、体長5~15ミリメートルで、頭部には前方に伸びる突起をもつことが多い。はねは透明であるが、大きな暗色紋をもつことがある。熱帯地方を中心に世界で約450種が知られ、日本産は約5種が知られている。

 テングスケバDictyophara patruelisは、体長10~13ミリメートル、体は淡緑色で、頭部は前方に強く突出する。胸背には4本の橙(だいだい)色の条(すじ)がある。はねは透明。イネ科植物に生息し、クワやサトウキビ、イネに多く発生することがある。本州、四国、九州、琉球(りゅうきゅう)諸島、台湾、朝鮮半島に分布する。近縁のナカノテングスケバD. nakanonisは東京都中野で発見されたもので、クヌギなどにすむといわれるが、数は少ないようである。ほかにアカメガシワに多いツマグロスケバOrthopagus lunuliferや、山地のヤナギやハンノキ類にみられるクロテングスケバSaigona ishidaiなどが知られる。

[林 正美]

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