A medium-sized, greenish hummingbird with a long, slender, straight bill, the Blue-fronted Lancebill can be found in wet forests, mountain foothills and adjacent lowlands. It can be found within its range feeding on nectar and small arthropods. There are currently two described subspecies of the Blue-fronted Lancebill. It can be distinguished from the similar and closely related Green-fronted Lancebill by a smaller, darker, violet forehead, its smaller overall size and shorter bill. Additionally, the Blue-fronted Lancebill is found at much lower elevations. Despite being uncommon throughout its range, the Blue-fronted Lancebill's population is believed to be stable, and consequently has not been placed on any threatened species lists.