>>37270393no its not, see
>>37267884, it literally has the signature feature of the swallowtail butterfly
the head crest is not a moth nor a butterfly trait, its a fictional piece that happens to carry over the (more realistic) feature of caterpie's crest
the most mothlike trait of venomoth could perhaps be the large fat abdomen but then again the swallowtail also happens to have large fat abdomens.