If I am citing an essay by an author in a collection, do I need to include in my works-cited-list entry the page number for the author’s biography on the contributors’ page?

Note: This post relates to content in the eighth edition of the MLA Handbook. For up-to-date guidance, see the ninth edition of the MLA Handbook.

No. The contributors’ page is not part of the essay, so list only the page range for the essay.