Excavating-nester
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Lithurgopsis echinocacti
Barrel Cactus Woodborer
Lithurgopsis echinocacti is a species of woodborer bee in the family Megachilidae, originally described as Lithurgus echinocacti by Cockerell in 1898. The species is commonly known as the Barrel Cactus Woodborer. It belongs to a genus of bees that specialize in boring into wood or plant stems for nesting, with this species showing particular association with cacti. The genus Lithurgopsis is distinguished from the related Lithurgus by morphological characteristics and geographic distribution patterns.