flathead borer
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flatheaded borer — noun or flathead borer Etymology: so called from its much enlarged and flattened thorax : any of numerous beetle larvae of the family Buprestidae that bore beneath the bark or in the sapwood of trees * * * the larva of a metallic wood boring… … Useful english dictionary
tunnels and underground excavations — ▪ engineering Introduction Great tunnels of the world Great tunnels of the worldhorizontal underground passageway produced by excavation or occasionally by nature s action in dissolving a soluble rock, such as limestone. A vertical opening … Universalium
List of invasive species — This is a list of invasive species by country or region. A species is regarded as invasive if it has been introduced by human action to a location, area, or region where it did not previously occur naturally (i.e., is not native), becomes capable … Wikipedia