Paul, 2-300 Lunar Underwings is about 250 more than I have ever had in a trap in one night. What sort of habitat are you in? It does, however, seem a large drop off in one year. Do you have data from previous years to look at? How are others' totals of Lunar Underwings doing? Mine are fairly consistent with previous years, though I am running a duo light system with a 400 and 125 Watt combo this year for the first time and that has had a positive effect on numbers generally.