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Melissodes agilis
agile long-horned bee, agile longhorn bee
Melissodes agilis is a species of long-horned bee in the family Apidae, characterized by the notably long antennae of males. The species exhibits striking sexual dimorphism in behavior: females are solitary ground-nesters, while males form nightly sleeping aggregations on flowers and vegetation. Males are highly territorial, aggressively defending floral resources from other pollinators including butterflies and bees. The species is native to North and Central America and has been documented in urban pollinator gardens.