The Akrotiri Bioblitz, Cyprus (ABC) was a one-off event held as part of the Alien-CSI COST Action. It took place for 24 hours between Wednesday, February 27 and Thursday, February 28, 2019. Most participants collected their observations on the iNaturlist.org platform under the project Akrotiri Bioblitz, Cyprus (https://www.inaturalist.org/projects/akrotiri-bioblitz-cyprus). However, a few people collected their data on paper and transferred to spreadsheets. These are those additional data.