Has the bumblebee Bombus bellicosus gone extinct in the northern portion of its distribution range in Brazil?

@article{Martins2009HasTB,
  title={Has the bumblebee Bombus bellicosus gone extinct in the northern portion of its distribution range in Brazil?},
  author={Aline C. Martins and Gabriel A. R. Melo},
  journal={Journal of Insect Conservation},
  year={2009},
  volume={14},
  pages={207-210}
}
Evidence for the extinction of the bumblebee Bombus bellicosus in Paraná state, in Brazil, is presented. The species is found in areas covered with open grass fields and shrub vegetation, originally ranging from northwestern Argentina to Paraná, where it reached its northeastern limit. Until the early 1980s, B. bellicosus was relatively abundant in Paraná, when the last known specimens were collected. In recent surveys conducted from 2002 to 2005, no specimens were recovered at sites in which… Expand

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