tra ▁and ▁anten na e . ▁The ▁fore head ▁of ▁males ▁is ▁de pressed ▁and ▁red ▁hair ▁covers ▁its ▁edges , ▁which ▁are ▁cur led ▁toward ▁the ▁middle ▁of ▁the ▁fore head . ▁Fem ale ▁fore head ▁is ▁convex , ▁bearing ▁a ▁medium ▁longitud inal ▁gro ove . ▁Long itud inal ▁wr ink le ▁near ▁the ▁mouth ▁and ▁vertex ▁pun ct ured ▁in ▁both ▁sex es . ▁ ▁The ▁pron ot um ▁is ▁somewhat ▁longer ▁than ▁wide ▁( 7 : 6 ▁ratio ). ▁It ▁is ▁covered ▁with ▁co arse ▁pun ct ures ▁that ▁are ▁larger ▁at ▁the ▁edges , ▁particularly ▁at ▁its ▁anterior . ▁The ▁length ▁of ▁the ▁el y tra ▁is ▁almost ▁equal ▁to ▁their ▁combined ▁width . ▁The ▁el y tra ▁have ▁longitud inal ▁gro ov es ▁made ▁of ▁large ▁round ▁pun ct ures . ▁The ▁spaces ▁between ▁these ▁gro ov es ▁contain ▁rows ▁of ▁smaller ▁pun ct ures , ▁which ▁are ▁irregular ▁on ▁the ▁first ▁two ▁inter - gro ove ▁spaces , ▁but ▁form ▁regular ▁single ▁lines ▁on ▁the ▁others . ▁ ▁The ▁ab d omen ▁is ▁covered ▁with ▁short ▁re dd ish ▁hair s , ▁which ▁are ▁dens er ▁on ▁the ▁first ▁two ▁and ▁the ▁last ▁segments . ▁The ▁ab d omen ▁of ▁males ▁is ▁con ca ve ▁toward ▁the ▁rear , ▁with ▁a ▁ste ep ▁de pression ▁on ▁the ▁second ▁ab dom inal ▁stern ite , ▁and ▁bearing ▁a ▁hor izont ally ▁extended ▁finger - sh aped ▁t uber cle ▁on ▁the ▁middle ▁of ▁the ▁posterior ▁edge ▁of