Version 7.0. Last updated: 1 February 2026  
 
Nomenclator Detail Record
 
 
 
Name: Bibio tristis Williston, 1893: 113
Type: USA. Kansas
Status: (Available, Valid) Current Valid Name
Notes:
Valid Name: Bibio tristis Williston
Family: Bibionidae
Category: Species
Range: (NE: NE) Washington,Utah,Arizona
URL:
Citation: Williston, S.W. 1893. Bibio tristis, n. sp. Trans. Kansas Acad. Sci. 13: 113.
Verification Code: 99
Authority: Poole, R.W. & Gentili, P. (eds.) 1996
Revision Date: 06/20/2023
Kind of Name: Species
Record #: 60121
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