ist ▁and ▁is ▁associated ▁with ▁hum id ▁for ests ▁and ▁ar b ore al ▁for aging . ▁ ▁G nam pt ogen ys ▁tri angular is ▁and ▁G nam pt ogen ys ▁h art man i ▁are ▁the ▁only ▁two ▁members ▁of ▁the ▁sub family ▁E ct at omm inae ▁known ▁to ▁occur ▁in ▁the ▁sout he astern ▁United ▁States . ▁These ▁very ▁distinct ive ▁an ts ▁can ▁be ▁recognized ▁immediately ▁by ▁the ▁deep ▁horizontal ▁gro ov es ▁covering ▁the ▁entire ▁head ▁and ▁body . ▁G . ▁tri angular is ▁workers ▁are ▁~ 5 . 0   mm ▁in ▁length ▁and ▁dark ▁brown . ▁Fem ales ▁are ▁similar ▁in ▁appearance ▁to ▁workers , ▁but ▁are ▁slightly ▁larger ▁( ~ 5 . 5   mm ▁in ▁length ) ▁and ▁have ▁brown ish ▁gray ▁colored ▁wings . ▁M ales ▁are ▁approximately ▁the ▁same ▁length ▁as ▁females ▁( ~ 5 . 5   mm ), ▁but ▁are ▁was p - like ▁in ▁appearance ▁and ▁differ ▁consider ably ▁from ▁workers ▁and ▁females . ▁The ▁deep ▁horizontal ▁gro ov es ▁characteristic ▁of ▁the ▁genus ▁are ▁mostly ▁absent ▁except ▁on ▁the ▁face ▁and ▁first ▁g astr al ▁ter g ite . ▁S ides ▁of ▁head , ▁pron ot um , ▁much ▁of ▁the ▁mes on ot um , ▁and ▁g aster ▁have ▁reduced ▁sculpt ure ▁and ▁are ▁sh iny , ▁and ▁the ▁remainder ▁of ▁mes os oma ▁and ▁pet io le ▁are ▁rug or etic ulate . ▁M ales ▁are ▁b icol ored ▁with ▁the ▁head ▁and ▁mes os