▁genus ) ▁than ▁other ▁species ▁commonly ▁placed ▁here , ▁if ▁not ▁actually ▁closer . ▁In ▁addition , ▁E lach ista ▁contains ▁several ▁crypt ic ▁species ▁complex es ▁– ▁such ▁as ▁the ▁one ▁around ▁E . ▁disp unct ella ▁and ▁E . ▁tr iser iat ella ▁– ▁whose ▁system at ics ▁and ▁tax onomy ▁are ▁still ▁not ▁fully ▁resolved . ▁ ▁A ▁number ▁of ▁E lach ista ▁species ▁have ▁been ▁assigned ▁to ▁one ▁of ▁several ▁groups , ▁which ▁may ▁or ▁may ▁not ▁be ▁mon oph y let ic , ▁and ▁whose ▁names ▁in ▁the ▁literature ▁do ▁not ▁consist ently ▁follow ▁the ▁usual ▁tax onom ic ▁practice ▁( i . e . ▁using ▁as ▁names ake ▁the ▁group - member ▁which ▁was ▁described ▁first ). ▁Some ▁of ▁these ▁groups ▁are ▁placed ▁in ▁either ▁of ▁the ▁two ▁large ▁sub gener a ▁E lach ista ▁( A ph el os et ia ) ▁and ▁E lach ista ▁( E lach ista ). ▁Other ▁proposed ▁sub gener a ▁– ▁the ▁small ▁E lach ista ▁( D ib rach ia ) ▁and ▁E lach ista ▁( H em ip ros op a ) ▁– ▁are ▁here ▁included ▁in ▁the ▁species ▁of ▁unclear ▁relationships ; ▁like ▁some ▁small ▁species - groups , ▁they ▁stand ▁a ▁chance ▁of ▁rendering ▁the ▁two ▁larger ▁sub gener a ▁par ap hy let ic ▁if ▁accepted ▁as ▁distinct , ▁but ▁seem ▁too ▁unlike ▁them ▁to ▁war rant ▁pla cement ▁in ▁either . ▁ ▁Sub gen us ▁E lach ista ▁( A ph el os et