▁pale ▁och re ous ▁yellow ish ▁except ▁a ▁suff used ▁pale ▁grey ▁spot ▁before ▁the ▁a pe x . ▁ ▁References ▁ ▁Category : M oth s ▁described ▁in ▁ 1 9 1 5 ▁Category : S ten oma <0x0A> </s> ▁John ▁D . ▁Beng t son ▁( born ▁ 1 9 4 8 ) ▁is ▁an ▁American ▁historical ▁and ▁anth rop ological ▁lingu ist . ▁He ▁is ▁past ▁president ▁and ▁currently ▁vice - pres ident ▁of ▁the ▁Association ▁for ▁the ▁Study ▁of ▁Language ▁in ▁Pre history , ▁and ▁has ▁served ▁as ▁editor ▁( or ▁co - editor ) ▁of ▁the ▁journal ▁Mother ▁T ong ue ▁( 1 9 9 6 – 2 0 0 3 , ▁ 2 0 0 7 - present ). ▁Since ▁ 2 0 0 1 ▁he ▁has ▁been ▁a ▁member / res earch er ▁of ▁E volution ▁of ▁Human ▁L anguages ▁( An ▁International ▁Project ▁on ▁the ▁L ingu istic ▁Pre history ▁of ▁Human ity ▁coordin ated ▁by ▁the ▁Santa ▁Fe ▁Institute ). ▁His ▁areas ▁of ▁special ization ▁include ▁Sc and in av ian ▁languages ▁and ▁lingu istics , ▁Ind o - Europe an ▁lingu istics , ▁Den é – C au cas ian ▁( S ino - C au cas ian ) ▁languages , ▁and ▁pale ol ingu istics ▁( the ▁study ▁of ▁human ▁pre history ▁through ▁lingu istic ▁evidence ). ▁ ▁Publications ▁▁ ▁Beng t son , ▁John ▁D . ▁ 1 9 9 4 . ▁( with ▁Mer ritt ▁Ru hlen ) ▁Global ▁Et