Welcome to Czechia BMS
In this tab you will find specific information about the Czech butterfly monitoring scheme.
About the Czech BMS
The Czech butterfly monitoring network began operating in 2010 and started using the eBMS website and ButterflyCount App to collect transect and 15-minute count data in 2023. This BMS continues to grow and support butterfly conservation thanks to the efforts of the scheme's main coordinator, Zdenek F. Fric. Czech Butterfly Monitoring Scheme is a joint activity of Biology Centre Czech Academy of Sciences (Institute of Entomology), Agency of Nature Conservation (AOPK) and NGO Czech Butterfly Conservation (SOM).
Getting started - Contact us

Are you new to butterfly counts? Do you need help identifying butterflies?
Please contact the coordinators before starting a transect, they can help you place your transect and give advice on butterfly monitoring.
Please contact Zdenek F. Fric:
Via email at [email protected]
Through WhatsApp by joining the Czech BMS WhatsApp group (Click here to join!)
If you have problems or suggestions specifically regarding the eBMS app or website, please contact eBMS by writing [email protected].
Join the community

If you’re new or would like to keep up with the monitoring scheme’s updates, consider joining other like-minded citizen scientists on the Czech BMS social media platforms:
- Czechia BMS - motýlí transekty & čtvrthodinky: Join the Facebook group to become part of our close-knit community! Share butterfly pictures, get help with species identification, and more.
- Czech BMS WhatsApp Group: Stay in contact with coordinators and other butterfly monitoring volunteers.
Supporting materials and resources
Below are field guides and other useful resources to help you identify the butterflies present in your geographical area. If you are instead looking for materials about broader butterfly group identification or about butterfly count methodologies, please visit the materials tab.
- Website of the Czech Society for Butterfly and Moth Conservation (SOM): Learn about the Society's latest updates in the News tab, or find article and book suggestions on Czech butterflies and moths, in the Publications tab. The website is available in English and Czech.
