ɪt kæn biː dɪstˈɪŋɡwɪʃt fɹʌm ˈɛn. mˈoʊlɹi ænd ˈɛn. mˈaʊnti fˈɔːɹmɚli θˈɔːt təbi kɑːnspɪsˈɪfɪk baɪ ɪts kəmpˈæɹətˌɪvli lˈɑːɹdʒɚ sˈaɪz, hˈɛviɚ spˈɑːɾɪŋ, ænd ðɪ ʌnstɹˈaɪpt lˈɑːɹviː wɪð nˈuːmɚɹəs wˈaɪt spˈɑːts.
It can be distinguished from N. moleri and N. mounti (formerly thought to be conspecific) by its comparatively larger size, heavier spotting, and the unstriped larvae with numerous white spots.