Ratzlaff, Chris Gordon, Spencer Entomological Collection Beaty Biodiversity Museum University of British Columbia, Canada

• Journal of the Entomological Society of British Columbia Vol. 112 (2015): Journal of the Entomological Society of British Columbia - Articles
  Checklist of the Spheciform Wasps (Hymenoptera: Crabronidae & Sphecidae) of British Columbia
  Abstract  PDF