Where Are The Butterflies!!?

ProfessorRoush tries to be a good gardener, and a gracious host of garden fauna, but once in a while he is incredibly oblivious to the obvious and dense to the details.  I've been so focused on catching up with spring--weeding, trimming, spreading 80+ bags of mulch, watering and weeding again--that I've been focused on the ground and the work and missing the big picture.  Well, to be accurate, I've missed the fact that the big picture is missing something.



 As my 'Blizzard' Mockorange (Philadelphus lewisii 'Blizzard') began to bloom, however, it finally dawned on me that I haven't seen a single butterfly yet.  Not a skipper, not a fritillary, not a hairstreak, none, on any flower yet this year.  My 'Blizzard' is usually covered with them while it blooms.  Let alone a Painted Lady on the 'Blizzard', like the beauty above that I photographed in 2012, I haven't seen any butterflies at all this year.   My 'Blizzard' is in full bloom as captured two days ago in the photograph at the left and there is not a single butterfly on it. 






What's going on?  As I think back, my alliums have all bloomed and past, and yet I saw no butterflies like this Painted Lady pictured on the 'Globemaster' allium at right, again from 2012.  Honeysuckle, roses, Knautia macedonia, all are blooming now without their usual halo of winged angels.  It's not like I've been puffing the insecticides around this year.  I use a little in the vegetable garden when I'm desperate, but I haven't broke open the carbaryl dust on the potatoes yet this year, and I don't use it in the rest of the garden ever.

Frankly, I'm more than a little worried.  I knew we had a rough winter, dry and cold, because  I lost a number of roses and more than a few long-established shrubs.  But was it really that dry and cold?  We have fallen deeper into drought this spring, with every storm passing just to our east or north, like this one I captured on radar from 2 nights ago, slipping to the east without raining here.  There have been no ground-soaking rains since last September and already the temperatures are climbing to the 100's (today the temperature hit 102ºF in my garden).   My front lawn is beginning to dry up and looks like the browning turf of late July or early August instead of the usual lush green of late May.   Are the timing or sequences of butterfly and bloom off?  My allium and mockoranges bloomed together in 2012, yet this year the alliums bloomed and faded a week before the mockorange opened the first blossom.  Has any of this environmental variability affected the butterflies?  Am I to witness no joyous fritting about of a fritillary this entire year?

Is anyone else missing their butterflies? 

I'll let you know if, and when they arrive here.  Until then, I'm at a loss to know if this is a variation of normal, or an omen of the world's end.