Thanks to Matt for his humorous and informative post! As for the dragonflies we saw but didn't manage to net (yet): We saw a Green Darner. This I say with fair confidence. And we saw a skimmer, though as to what species of skimmer it was, I am exceedingly uncertain.
Providing me a constant reminder and temptation, the net remains at my desk. Also, I brought that jeweler's loupe that will afford us a magnified view of damselfly abdomens. And I have quite a bit of studying to do, too, so I can become more facile with the identification key.
Another field note: I have searched the pond's perimeter for exuvia (empty exoskeletons from dragonfly and damselfly nymphs) but I don't yet see them. Perhaps I'm overlooking them, especially likely since a segment of the pond's edge is made inaccessible by a temporary fence. But once a generation of Green Darners emerges, I expect it will be more evident since their nymphs are so large.
Another field note: Linden trees have been blooming this past week, in the Garden and around town.
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