Mordella knulli is a species of beetle in the genus Mordella of the family Mordellidae, which is part of the superfamily Tenebrionoidea. It was discovered in 1922.
2. Bright, Donald E., 1986: Family: Mordellidae. A Catalog of the Coleoptera of America North of Mexico. viii + 22. - via Integrated Taxonomic Information System (ITIS)