Theodore Dru Alison Cockerell (22 August 1866 – 26 January 1948) was an American entomologist and systematic biologist who published nearly 4,000 papers...

Cockerell-Mackie-Ogilvie expedition. She wrote several scientific articles in her own right, co-authored more with her husband, Theodore Dru Alison Cockerell...

Theodore, husband of Florence Theodore Dru Alison Cockerell (1866–1948), zoologist, husband of Wilmatte, brother of Sydney Wilmatte Porter Cockerell (1869–1957)...

The genus and species were described by Theodore Dru Alison Cockerell in 1906. "Bombus florissantensis Cockerell 1906 (bumble bee)". FossilWorks. Archived...

as Miocene) Florissant Formation of Colorado, identified by Theodore Dru Alison Cockerell in 1922. Buttercups are mostly perennial, but occasionally annual...

23⁄128 in) long. The species was discovered and described by Theodore Dru Alison Cockerell in 1893. Ferrisia virgata duct Ferrisia virgata gonopore Ferrisia...

Spain in 2014. Calyptapis florissantensis was described by Theodore Dru Alison Cockerell in 1906 from the Chadronian (Eocene) lacustrine – large shale...

mealybug. The scientific name was published for the first time by Theodore Dru Alison Cockerell in 1893. The species is found primarily on pineapple and other...

family Chromodorididae. It was named by Theodore Dru Alison Cockerell in honor of his wife Wilmatte Porter Cockerell. This species was described from rockpools...

a monotypic moth genus in the family Saturniidae erected by Theodore Dru Alison Cockerell in 1912. Its only species, Eupackardia calleta, the calleta...