Dear all,

We are happy to announce that registration is now open for the 35^th European Congress of Arachnology, which will take place in Zadar, Croatia, from August 31^st to September 5^th, 2025.

The Organizing Committee (Martina Pavlek, Dora Hlebec, Tvrtko Dražina, Tomislav Kos, Tin Rožman, Iva Čupić, and Ana Hant) looks forward to welcoming you.

The Scientific Committee (Efrat Gavish-Regev, Susan Kennedy, Vera Opatova, Gabriele Uhl, Pedro Cardoso, Matjaž Gregorič, Marco Isaia, Yuri Simone, and Jonas Wolf) will ensure a high-quality scientific program.

We are especially pleased to host four outstanding plenary speakers:

Simona Kralj Fišer, Institute of Biology, Research Centre of the Slovenian Academy of Sciences and Arts, Ljubljana, Slovenia
Mark Harvey, Western Australian Museum, Perth, Australia
Miquel A. Arnedo, Department of Evolutionary Biology, Ecology and Environmental Sciences, Universitat de Barcelona, & Biodiversity Research Institute (IRBio), Barcelona, Spain
Stefano Mammola, Water Research Institute, National Research Council, Verbania, Italy; Finnish Museum of Natural History, University of Helsinki, Helsinki, Finland

Important Dates and Information:
Early Registration: April 10 - May 25, 2025

Regular (ESA member / non-member): 430 / 480 EUR
Student (ESA member / non-member): 250 / 300 EUR

Late Registration: May 26 - June 20, 2025

Regular (ESA member / non-member): 480 / 530 EUR
Student (ESA member / non-member): 290 / 340 EUR

Registration fee includes: conference materials, welcome package, all lunches, coffee breaks, welcome reception, social dinner, and excursion costs.
Accompanying Person Fee: 200 EUR - includes welcome package, welcome reception, excursion costs, and social dinner.

Abstract Submission: April 10 - June 20, 2025
Abstract notification of Acceptance: July 15, 2025

You’ll find all registration and abstract submission information here on our official website. After registering, you’ll be able to create a personal account to submit your abstract.

Tentative Program Highlights:

Welcome event: Evening of August 31^st
Mid-congress excursions: September 3^rd
Congress dinner: September 4^th
Closing session: Evening of September 5^th

Details of the three proposed excursions can be found here.
If you'd like to propose a symposium to be held prior to the congress, please contact us at eca2025@irb.hr

Stay updated via our social media channels:X: @35thECA2025; Bluesky: @35theca2025.bsky.social; Instagram: @35theca2025