Formosan termite - Ieshiroari (English spelling)

Japanese: イエシロアリ - いえしろあり（英語表記）formosan termite

An insect of the Rhinotermitidae family (illustration). This termite causes severe damage to buildings and standing trees, and is found in the southern coast of Honshu west of the Kanto region, the lowlands of Shikoku and Kyushu, the Ryukyus, and Chugoku. Soldiers have a forehead gland on their heads that secretes a milky mucus when they sense danger. The winged termites are brown and fly in swarms on warm, humid nights in June and July, and often gather around electric lights. They build a processed nest consisting of numerous small chambers arranged in concentric circles around a royal chamber and an outer wall of clay, which can reach a diameter of over 1m. Water-collecting ant trails extend from this nest to groundwater and condensed areas of water pipes, and worker ants carry water and moisten the area while they cause damage, so the damage range extends to the entire building.

Source: Heibonsha World Encyclopedia, 2nd Edition Information

Japanese:

ミゾガシラシロアリ科の昆虫（イラスト）。建造物や生立木に激害を与えるシロアリで，関東以西の本州南岸，四国と九州の低地，琉球，中国などに分布。兵アリは頭部に額腺があり，危険を感ずるとそこから乳白色の粘液を分泌する。羽アリは褐色で6～7月の温暖多湿な夜に群飛して電灯によく集まる。王室を中心に，同心円状に配置した多数の小室と粘土の外壁からなる加工巣をつくり，直径1m以上にも達する。この巣から水取り用のアリ道が地下水や水道管の結露部にのびており，職アリは水を運んで湿しながら加害するので，加害範囲は建物全体に及ぶ。

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