Thank you for your interest in joining the International Society of Arachnology, the premier international scientific society for the study of arachnids (exclusive of mites). To become a member you need to fill out the form below! For inquiries regarding membership, please contact membership@arachnology.org.



Create a new user-profile


Annual dues are $40.00 USD for regular members, $20.00 USD for students or retired individuals, and $50.00 USD for institutions. The ISA also offers also a lifetime membership for $500 USD. Payments can be made through PayPal using the right button or after logging in as a member. Clicking the PayPal button will also enable you to pay by credit card (i.e. you do not need to have a PayPal account).

Membership (please select)

Student Research Fund

In 2017, the ISA initiated the Oscar and Jan Francke Student Research Fund to support the next generation of scientists. We raised over $5,000 US thanks to major funding from Oscar and Jan Francke and additional donations from Yael Lubin, Martin Ramirez, Ariel Gualtieri, and Paula Cushing. In order to maintain this funding program into the future, please consider donating to this fund. Individuals who contribute over $500 specifically for this fund will receive a copy of Richard Bradley’s Common Spiders of North America or a copy of the 2nd edition of Spiders of North America: an identification manual (each book retails for $95 US).