• Bumble Bees of Illinois (By Color Group)
  • Bumble Bees of Illinois (By Color Group) Downloadable PDF
• Bumble Bees of Illinois (Male/Female)
  • Bumble Bees of Illinois (Male/Female) Downloadable PDF
• Key to Distinguishing Males from Females and Bee Anatomy
  • Key to Distinguishing Males from Females Downloadable PDF
• Pictoral Key to Female Bumble Bees of Illinois
  • Pictoral Key to Female Bumble Bees of Illinois Downloadable PDF
• Pictoral Key to Male Bumble Bees of Illinois
  • Pictoral Key to Male Bumble Bees of Illinois Downloadable PDF

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