▁black ish ▁and ▁with ▁sil very - blue ▁scales ▁on ▁its ▁outer ▁edges . ▁There ▁are ▁two ▁minute ▁sem ic irc ular ▁marks ▁defined ▁by ▁black ▁on ▁the ▁med ial ▁part ▁of ▁the ▁costa ▁and ▁there ▁is ▁a ▁diff used ▁black ish ▁disco idal ▁ann ulus . ▁The ▁post med ial ▁line ▁is ▁och re ous ▁defined ▁on ▁each ▁side ▁by ▁black ish ▁and ▁with ▁sil very - blue ▁scales ▁on ▁its ▁inner ▁edge . ▁There ▁are ▁some ▁minute ▁sil very - blue ▁stre aks ▁before ▁the ▁term en ▁and ▁there ▁is ▁a ▁dark ▁terminal ▁line . ▁The ▁h ind w ings ▁are ▁och re ous ▁with ▁a ▁diff used ▁ob lique ▁med ial ▁black - b rown ▁band ▁from ▁the ▁cell ▁to ▁the ▁inner ▁margin , ▁as ▁well ▁as ▁an ▁och re ous ▁post med ial ▁line , ▁which ▁is ▁ob sole te ▁on ▁the ▁cost al ▁area ▁and ▁then ▁defined ▁on ▁the ▁inner ▁side ▁by ▁a ▁black ▁line ▁and ▁with ▁a ▁broad ▁diff used ▁black ish ▁band ▁on ▁the ▁outer ▁area . ▁There ▁is ▁a ▁sub term inal ▁series ▁of ▁diff used ▁black ▁st ria e ▁with ▁slight ▁patch es ▁of ▁sil very - blue ▁scales ▁before ▁term en ▁on ▁the ▁cost al ▁half . ▁ ▁References ▁ ▁Category : M oth s ▁described ▁in ▁ 1 9 1 2 ▁Category : Sp il om el inae <0x0A> </s> ▁" Side ▁by ▁Side " ▁is ▁a ▁popular ▁song ▁by ▁Harry ▁M . ▁Wood s ▁written ▁in ▁ 1 9 2 7