Locations are Belize and the Yucatan..... Hook- 4 and 6... Thread- Chartruese..... Tail- Pearl krytaill flash, then peacock blue fishair flanked by tow grizzly hackle tips..... Body- Light olive Vernille... Eyes- the smallest bead chain you can find.... AND tied in Under the hook,not in the usual manner on the top of the hook. This fly rides hook down. More details can be found in Brown's book and this is designed by Winston Moore.