Polygonia comma form of comma is frequently confused with the dark form of the question mark ("P. interrogationis"), but the two can readily be distinguished by the shape of the comma mark on the underside. The pale form is easily confused with the satyr comma ("P. satyrus"), which usually occurs north and west of the eastern comma's range. They can be distinguished by the upperside color, which is orange brown in the comma and tawny yellowish brown in "P. satyrus"; by the underside pattern, which tends to be mottled in the comma but appears to be more longitudinally streaked in "P. satyrus";
What Work Is in Detroit. The cadence of many of the poems in the collection are simple free verse. The rhythm and dictation of much of the collection is normal and easily accessible. Though "What Work Is" takes on many sophisticated subjects such as death, love, loss, and struggle, the collection maintains an easy-to-access feeling. Levine's work in this collection is not to obscure or make grandiose, but instead to reveal and show plainly matters that are important. Levine's structures and word choices reflect this mood of his poetry as he rarely uses complicated punctuation or rhythms. Instead of using highly symbolic words