lepidopteron vs lepidopteran

lepidopteron and lepidopteran both are nouns.

Word	Noun	Adjective	Verb	Adverb
lepidopteron	Yes	No	No	No
lepidopteran	Yes	No	No	No

As nouns, lepidopteron and lepidopteran are synonyms defined as:

lepidopteron and lepidopteran: insect that in the adult state has four wings more or less covered with tiny scales

Other synonyms of lepidopteron include lepidopterous insect.

lepidopteron (noun)	lepidopteran (noun)
insect that in the adult state has four wings more or less covered with tiny scales	insect that in the adult state has four wings more or less covered with tiny scales