Species: Bombus (Bombias) nevadensis

GH - 200,000 to >2,500,000 square km (about 80,000 to >1,000,000 square miles) - GH - <i>B. nevadensis</i> apparently occurs from Alaska to Mexico in the West. Scholl et al. (1992) conclude that the range is primarily from California east to about the 98th to 100th meridian, with <i>B. auricomus </i>replacing it farther east. The Discover Life site indicates <i>B. auricomus</i> occurs mostly east of the Mississippi River. However, www.bumblebee.org indicates much broader overlap with <i>B. nevadensis</i> extending east to Wisconsin in the north and New Mexico in the south with a rather large overlap with <i>B. auricomus. </i>Golick and Ellis (2006) document both species in Nebraska without apparent intergrades. <i>B. auricomus </i>occurs or occurred nearly statewide and <i>B. nevadensis</i> is reported only from nine western counties and verified for five. Four counties apparently have or had both species. Some historic records for both species are unconfirmed. There are current records for only two counties. Neither species is reported recently in the southwestern counties, but <i>B. nevadensis</i> is reported historically. Scholl et al. (1992) investigated the overlap zone and found evidence of phenotypic convergence in coat color rather than actual intergradation, which may complicate identification of specimens in some places. Websites and other sources indicating a more transcontinental (coast to coast) range are probably basing this on both species.