Comstock mealybug vs Comstock's mealybug

Comstock mealybug and Comstock's mealybug both are nouns.

Word	Noun	Adjective	Verb	Adverb
Comstock mealybug	Yes	No	No	No
Comstock's mealybug	Yes	No	No	No

As nouns, Comstock mealybug and Comstock's mealybug are synonyms defined as:

Comstock mealybug and Comstock's mealybug: Asiatic insect introduced accidentally into United States; pest on citrus and apple trees

Other synonyms of Comstock mealybug include Pseudococcus comstocki.

Comstock mealybug (noun)	Comstock's mealybug (noun)
Asiatic insect introduced accidentally into United States; pest on citrus and apple trees	Asiatic insect introduced accidentally into United States; pest on citrus and apple trees