3 2   mm . ▁The ▁upp ers ide ▁is ▁dark ▁brown ▁with ▁two ▁rows ▁of ▁small ▁white ▁sp ots ▁on ▁the ▁for ew ings . ▁The ▁unders ide ▁of ▁the ▁h ind w ings ▁is ▁light ▁to ▁dark ▁brown ▁with ▁a ▁pale ▁grey ▁overlay ▁and ▁some ▁white ▁sp ots . ▁Ad ult s ▁are ▁on ▁wing ▁from ▁July ▁to ▁August ▁in ▁one ▁generation ▁per ▁year ▁in ▁North ▁Dak ota ▁and ▁Mont ana . ▁In ▁Colorado , ▁there ▁are ▁two ▁gener ations ▁with ▁adult s ▁on ▁wing ▁from ▁June ▁to ▁August ▁while ▁adult ▁are ▁on ▁wing ▁from ▁March ▁to ▁October ▁in ▁multiple ▁gener ations ▁in ▁California . ▁Ad ult s ▁feed ▁on ▁flower ▁ne ct ar . ▁ ▁The ▁lar va e ▁feed ▁on ▁the ▁leaves ▁of ▁At ri plex ▁can esc ens . ▁They ▁live ▁in ▁n ests ▁of ▁leaves ▁tied ▁together ▁with ▁sil k . ▁ ▁Sub species ▁H esper opsis ▁li by a ▁li by a ▁( A rizona ) ▁H esper opsis ▁li by a ▁l ena ▁( Ed wards , ▁ 1 8 8 2 ) ▁ ▁H esper opsis ▁li by a ▁jo aqu ina ▁Em mel , ▁Em mel ▁& ▁Mat to on , ▁ 1 9 9 8 ▁( Cal iforn ia ) ▁ ▁See ▁also ▁List ▁of ▁Le pid optera ▁that ▁feed ▁on ▁At ri plex ▁ ▁References ▁ ▁External ▁links ▁ ▁Category : C arch arod ini ▁Category : But ter f lies ▁of ▁the ▁United ▁States ▁Category : But ter f lies