Hi Bob,
I'm bad to awful on knowledge of current production. The citrus tang comes from, generally, South/Central American grown Connecticut type wrappers. I'd describe the color of the wrappers as tanish gold but I'm colorblind :). I did a comparison of cigars with these wrappers in August, 2015
http://www.cigarbum.com/forum/genera...tml#post126779
Some of these are still available. Tim (@Cardinal) mentioned that the Oliva CT is an Ecuadorian as well. Filler leaf with a citrus note exists. I've tasted it in Nicaraguans and to be specific, many of the Pinar Del Rio line (like the Seleccione that I'm currently smoking).