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Pacific Coast Entomological Society

A nonprofit learned society founded in 1901 devoted to western entomology, publisher of The Pan-Pacific Entomologist.

Last updated September 29, 2026

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Overview

The Pacific Coast Entomological Society (PCES) is a nonprofit learned society devoted to western entomology in all its aspects. It was organized on 15 August 1901 and filed Articles of Incorporation in the State of California on 28 August 1940, establishing itself as a nonprofit corporation. Membership is open to everyone, amateurs and professionals alike, and the society is governed by an executive board consisting of a president (elected annually), past-president, recording secretary, managing secretary, treasurer, and chairs of various standing committees such as program, membership, publication, and historical. The society's principal publication is The Pan-Pacific Entomologist, a quarterly journal that reached its 100th volume in 2024. Members receive the journal along with the Bits & PCES Newsletter for those residing within commuting distance of San Francisco. Annual membership fees are $25.00 for regular membership, $12.50 for student membership, and $40.00 or more for sponsoring membership; institutional subscriptions are $40.00. The society also maintains an email listserv used to inform members of upcoming events and to allow communication among members, with meeting reminders, field trips, and other area entomological activities posted as they arise. Meetings of the Society are typically held six to eight times a year, usually at the California Academy of Sciences, UC Berkeley, or the California Department of Food and Agriculture - Plant Pest Diagnostics Center. The society is based in the San Francisco area and serves the western United States entomological community.

History

The Pacific Coast Entomological Society was organized on 15 August 1901, making it one of the older entomological societies in the western United States. On 28 August 1940, the society filed Articles of Incorporation in the State of California, formally establishing itself as a nonprofit corporation. Its quarterly journal, The Pan-Pacific Entomologist, has been published continuously and reached its 100th volume in 2024, reflecting more than a century of entomological publishing on the Pacific Coast. The society has long been associated with the San Francisco Bay Area, holding meetings at institutions such as the California Academy of Sciences, UC Berkeley, and the California Department of Food and Agriculture - Plant Pest Diagnostics Center. Governance is set by an executive board in accordance with the society's Bylaws, including a president elected annually, past-president, recording secretary, managing secretary, treasurer, and chairs of standing committees for program, membership, publication, and historical matters. Membership remains open to amateurs and professionals alike, and the society continues to serve the western entomological community through meetings, field trips, a listserv, and its publications.

  • 2024

    The Pan-Pacific Entomologist reached its 100th volume.

  • 1940

    Filed Articles of Incorporation in the State of California on 28 August 1940, establishing itself as a nonprofit corporation.

  • 1901

    Society organized on 15 August 1901.

Products and positioning

A nonprofit learned society for western entomology, open to amateurs and professionals, publishing a century-old quarterly journal.

  • The Pan-Pacific Entomologist

    Quarterly journal of the society, in its 100th volume in 2024.

  • Bits & PCES Newsletter

    Newsletter for members residing within commuting distance of San Francisco.

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