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   vayda (vayda@clubcyberia.co)'s status on Sunday, 04-May-2025 13:40:38 JST vayda

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   🚨 ARTHROPOD OF THE DAY 🚨
   
   Emerald ash borer, (Agrilus planipennis), species of beetle (order Coleoptera, family Buprestidae) that is native to East Asia and became a serious pest of ash trees (Fraxinus) in North America. The insect naturally occurs in China, eastern Russia, Mongolia, Taiwan, Japan, and Korea and was introduced into eastern and central North America in the 1990s. Being responsible for the deaths of hundreds of millions of ash trees in the United States and Canada, the Emerald ash borer is considered one of the most destructive insect pests ever to be introduced to North America.
   
   The adult beetle is bright metallic green with a flattened back and measures about 1.3 cm (0.5 inch) long. It has purple abdominal segments beneath its wing covers. Females begin laying eggs on the bark of ash trees as soon as two weeks after emerging. After one or two weeks, the larvae hatch and tunnel into the tree to feed on the phloem and outer sapwood layers. As they grow, they produce distinctive S-shaped tunnel networks, known as galleries, that girdle and ultimately kill the tree by disrupting its vascular system.