Planococcus citri vs citrus mealybug

Planococcus citri and citrus mealybug both are nouns.

Word	Noun	Adjective	Verb	Adverb
Planococcus citri	Yes	No	No	No
citrus mealybug	Yes	No	No	No

As nouns, Planococcus citri and citrus mealybug are synonyms defined as:

Planococcus citri and citrus mealybug: feeds on a wide variety of cultivated plants but especially destructive to citrus

Planococcus citri (noun)	citrus mealybug (noun)
feeds on a wide variety of cultivated plants but especially destructive to citrus	feeds on a wide variety of cultivated plants but especially destructive to citrus