Bombus centralis female
 

Bombus griseocollis female
 

Bombus hyperboreus female
 

Bombus balteatus male
 

Bombus mixtus female
 

Bombus bifarius bifarius female
 

Bombus griseocollis female
 

Bombus jonellus jonellus female
 

Bombus flavifrons female
 

Psithyrus suckleyi female
 

Psithyrus fernaldae male
 

Psithyrus ashtoni male
 

Psithyrus insularis male
 

Bombus vagans female
 

Bombus sitkensis female
 

Bombus perplexus female
 

Bombus fervidus dark form
 

Bombus vosnesenskii female
 

Bombus balteatus female B
 

Psithyrus suckleyi male
 

Bombus nevadensis male
 

Bombus vagans female
 

Bombus fervidus male
 

Bombus ternarius female
 

Bombus vosnesenskii queen
 

Bombus sitkensis male
 

Bombus bifarius bifarius female B
 

Bombus appositus female B
 

Bombus balteatus female A
 

Bombus impatiens Queen
 

Bombus melanopygus female
 

Apis mellifera worker
 

Bombus frigidus male
 

Bombus bifarius bifarius male
 

Bombus occidentalis female form A
 

Bombus perplexus male
 

Bombus vagans male
 

Bombus lapponicus male
 

Bombus appositus female B
 

Bombus rufocinctus male
 

Bombus polaris polaris male
 

Bombus impatiens male
 

Bombus balteatus male
 

Bombus polaris polaris female
 

Psithyrus fernaldae male
 

Bombus bifarius nearcticus male
 

Bombus lucorum lucorum female
 

Bombus terricola male
 

Psithyrus insularis male
 

Bombus bifarius bifarius female B
 

Bombus vosnesenskii female
 

Bombus balteatus female B
 

Bombus centralis male
 

Bombus fervidus dark form
 

Bombus perplexus female
 

Bombus bifarius nearcticus female
 

Bombus bifarius bifarius male
 

Psithyrus suckleyi female
 

Bombus bifarius bifarius female
 

Bombus vagans female
 

Psithyrus ashtoni male
 

Psithyrus suckleyi female
 

Psithyrus insularis female
 

Bombus jonellus jonellus female
 

Psithyrus insularis male
 

Bombus flavifrons female
 

Bombus bifarius bifarius female
 

Bombus rufocinctus female
 

Bombus griseocollis female
 

Bombus centralis female
 

Bombus bifarius nearcticus male
 

Bombus fervidus male
 

Bombus mixtus female
 

Bombus balteatus male
 

Bombus hyperboreus female
 

Bombus morrisoni female
 

Bombus terricola male
 

Bombus lucorum lucorum female
 

Bombus polaris polaris female
 

Psithyrus fernaldae female
 

Bombus terricola male
 

Bombus fervidus female
 

Psithyrus fernaldae male
 

Bombus bifarius nearcticus male
 

Bombus appositus female B
 

Bombus jonellus jonellus female
 

Bombus lapponicus male
 

Bombus vagans male
 

Bombus perplexus male
 

Bombus bifarius bifarius male
 

Bombus polaris polaris male
 

Apis mellifera worker
 

Bombus melanopygus female
 

Bombus mixtus male
 

Bombus impatiens Queen
 

Bombus fervidus dark form
 

Bombus melanopygus male
 

Bombus mixtus female
 

Bombus neoboreus female
 

Bombus bifarius bifarius female B
 

Bombus sitkensis male
 

Bombus fervidus male
 

Bombus nevadensis male
 

Bombus impatiens Queen
 

Bombus flavifrons male
 

Bombus huntii female
 

Bombus vagans male
 

Bombus nevadensis female
 

Bombus neoboreus female
 

Bombus appositus female A
 

Bombus borealis
 

Bombus rufocinctus female
 

Bombus mixtus male
 

Psithyrus insularis female
 

Bombus ternarius male
 

Psithyrus fernaldae female
 

Bombus fervidus female
 

Bombus lapponicus male
 

Psithyrus ashtoni male
 

Psithyrus insularis male
 

Bombus borealis
 

Psithyrus ashtoni female
 

Apis mellifera queen
  

Bombus lucorum lucorum female
 

Bombus melanopygus male
 

Bombus morrisoni female
 

Bombus neoboreus female
 

Bombus sitkensis female
 

Psithyrus suckleyi male
 

Bombus vosnesenskii queen
 

Bombus rufocinctus male
 

Bombus bifarius nearcticus female
 

Bombus nevadensis male
 

Bombus appositus female A
 

Bombus centralis male
 

Bombus frigidus male
 

Bombus terricola female form B
 

Bombus bifarius nearcticus female B
 

Bombus huntii female
 

Bombus nevadensis female
 

Bombus bifarius nearcticus female B
 

Bombus balteatus female A
 

Apis mellifera worker
 

Bombus balteatus female B
 

Bombus flavifrons female
 

Bombus ternarius male
 

Bombus ternarius female
 

Bombus flavifrons male
 

Bombus lapponicus male
 

Psithyrus ashtoni female
 

Bombus neoboreus male
 

Bombus vosnesenskii female
 

Bombus polaris polaris female
 

Bombus sitkensis female
 

Bombus sitkensis male
 

Bombus rufocinctus male
 

Bombus vosnesenskii queen
 

Psithyrus suckleyi male
 

Bombus neoboreus female
 

Bombus morrisoni female
 

Bombus perplexus male
 

Bombus melanopygus male
 

Psithyrus ashtoni female
 

Bombus borealis
 

Bombus impatiens male
 

Apis mellifera queen
 

Bombus fervidus female
 

Psithyrus insularis female
 

Bombus mixtus male
 

Psithyrus fernaldae female
 

Bombus hyperboreus female
 

Bombus rufocinctus female
 

Bombus occidentalis female form A
 

Bombus terricola female form B
 

Bombus appositus female A
 

Bombus occidentalis female form A
 

Bombus flavifrons male
 

Bombus neoboreus male
 

Bombus huntii female
 

Bombus neoboreus male
 

Bombus ternarius female
 

Psithyrus suckleyi male
 

Bombus melanopygus female
 

Bombus flavifrons female
 

Bombus ternarius male
 

Bombus perplexus female
 

Bombus balteatus female A
 

Bombus bifarius nearcticus female B
 

Bombus impatiens male
 

Bombus nevadensis female
 

Bombus polaris polaris male
 

Bombus centralis male
 

Bombus bifarius nearcticus female
 

Bombus terricola female form B
 

Bombus impatiens male
 

Bombus frigidus male
 

Bombus impatiens Queen
 

Bombus centralis female