▁Sp rag gs ▁Bush ▁in ▁the ▁Wait ā k ere ▁R anges ▁on ▁ 9 ▁March ▁ 1 9 8 4 . ▁The ▁hol ot ype ▁spec imen ▁is ▁held ▁at ▁the ▁New ▁Zealand ▁Ar th rop od ▁Collection . ▁ ▁Et ym ology ▁ ▁The ▁name ▁C ten arch is ▁refers ▁to ▁the ▁p ect inate ▁( comb like ) ▁anten na ▁( kte inos ▁is ▁Greek ▁for ▁a ▁comb ▁and ▁- " arch is ", ▁a ▁conventional ▁car pos in id ▁suffix ). ▁ ▁Description ▁ ▁The ▁wings pan ▁is ▁ 3 5 – 4 0   mm ▁for ▁males ▁and ▁about ▁ 5 0   mm ▁for ▁females . ▁The ▁for ew ings ▁are ▁cre amy ▁white , ▁with ▁small ▁sparse ▁cost al ▁and ▁sub term inal ▁mac ulations ▁( sp ots ) ▁in ▁brown , ▁and ▁two ▁short ▁longitud inal ▁stre aks , ▁one ▁bas ally ▁on ▁the ▁costa . ▁The ▁head , ▁thor ax ▁and ▁ab d omen ▁are ▁cre amy ▁white ▁and ▁the ▁lab ial ▁pal pi ▁are ▁dark ▁brown ▁later ally . ▁The ▁h ind w ings ▁are ▁grey - buff , ▁although ▁dark er ▁brown - gre y ▁in ▁females . ▁ ▁Distribution ▁ ▁This ▁species ▁is ▁en demic ▁to ▁New ▁Zealand . ▁It ▁is ▁only ▁known ▁from ▁A uck land ▁and ▁North land . ▁Most ▁spec im ens ▁have ▁been ▁collected ▁in ▁Tit ir ang i . ▁ ▁Bi ology ▁and ▁behaviour ▁ ▁Ad ult ▁spec im ens ▁have ▁been ▁collected ▁from ▁December ▁to