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.



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Membership dues

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).

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Student Research Fund

In 2017, the ISA initiated the Oscar and Jan Francke Student Research Fund to support the next generation of scientists. We have raised over $5,000 US thanks to major funding from Oscar and Jan Francke and other smaller donations.  Maintaining this fund is central to our ongoing efforts to enable early career researchers enter the field of arachnology. We are thrilled with any donation — even small donations show the breadth of support for arachnology. Please consider donating to this fund.

Major Donations

  • Oscar and Jan Francke — $5000

Recent Donations (2019-present)

  • Paula Cushing — $500
  • Debbie Smith — $50
  • Guilherme Gainett — $20
  • Anonymous — $700
  • Anonymous — $800