▁line ▁along ▁the ▁lower ▁border , ▁which ▁is ▁sin uous ▁and ▁black ▁on ▁the ▁dist al ▁half . ▁The ▁cost al ▁fas cia e ▁is ▁sl ender ▁and ▁extends ▁to ▁the ▁a pe x . ▁The ▁sub ap ical ▁stre ak ▁is ▁white ▁and ▁ju xt ap osed ▁with ▁a ▁sl ender ▁black ▁line ▁along ▁the ▁lower ▁border ▁and ▁the ▁ap ical ▁stre ak ▁is ▁white ▁and ▁connected ▁with ▁the ▁longitud inal ▁fas cia . ▁The ▁d ors al ▁bar ▁is ▁white ▁and ▁ju xt ap osed ▁with ▁black ▁along ▁the ▁outer ▁border . ▁The ▁d ors al ▁margin ▁is ▁sp ars ely ▁ir ror ated ▁with ▁black ▁scales ▁on ▁the ▁bas al ▁one - six th s ▁and ▁at ▁the ▁middle . ▁The ▁torn al ▁patch ▁is ▁el ong ate , ▁white ▁and ▁ju xt ap osed ▁with ▁black ▁along ▁the ▁upper ▁border , ▁ir ror ated ▁with ▁dark ▁brown ▁scales ▁along ▁the ▁outer ▁border . ▁The ▁marg inal ▁stre ak ▁is ▁dark ▁brown . ▁The ▁h ind w ings ▁are ▁brown ish ▁grey . ▁ ▁Et ym ology ▁The ▁species ▁name ▁refers ▁to ▁the ▁white ▁fas cia ▁of ▁the ▁for ew ings ▁( res emb ling ▁a ▁lambda ) ▁and ▁is ▁derived ▁from ▁the ▁Greek ▁letter ▁lambda ▁and ▁a ▁suffix ▁derived ▁from ▁Greek ▁g rap hein ▁( mean ing ▁to ▁write ). ▁ ▁References ▁ ▁Category : M oth s ▁described ▁in ▁ 2 0 1 5 ▁Category : T ine idae <0x0A> </s> ▁The ▁principle ▁of ▁truth - value ▁links