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Since 2004 there have been about 7 reported sightings of this species. All, so far as I am aware, have been between Oct 1 and Oct 20. The two at the Brattleboro Retreat Meadows were the 4th Oct and the 20th Oct (though two years apart). This seems to signify a pretty narrow Fall migration season and that this is definitely the time to be out there looking for them. H Hector Galbraith PhD Galbraith Environmental Sciences LLC 837 Camp Arden Rd., Dummerston, VT05301 802 258 4836 (phone)