noun
robber fly (Promachus yesonicus)
A specific species of robber fly found in Japan. The name is typically written in katakana.
シオヤアブは他の昆虫を捕食する大型のハエです。
The robber fly (Promachus yesonicus) is a large fly that preys on other insects.
The name シオヤアブ (塩屋虻) literally means 'salt-shop horsefly', but the exact origin is uncertain. It may refer to the insect's habitat or appearance.