Example of infrastructure for a cryo-collection. A, B liquid nitrogen generator and tanks for storing samples under ultra-low (up to -80ºC) temperatures; C standing freezers for sample storage under low (-20ºC or lower) temperatures; D arrangement of jars and cryo-boxes with samples on shelves of a standing -20ºC freezer.

  
  Part of: Salnitska M, Solodovnikov A, Orlov I (2022) Sampling and curation of rove beetles (Insecta, Coleoptera, Staphylinidae) for comprehensive and DNA-grade collections to enhance biodiversity exploration in Northern Eurasia. Biodiversity Data Journal 10: e96080. https://doi.org/10.3897/BDJ.10.e96080