paulh - This summer has been really hot and dry, not many butterflies, insects or flowers around where I live either. Mainly I think because they have no flowers to attract them this year. I'm seeing very few, probably less than half the flowers we had last summer. Last year loads, this year very few. I'm at my sister's place near Lufkin right now, about 3 hours from you. Don't know what's around here yet, too hot today and I'm tired from the late night trip. Will be looking around this evening and tomorrow though.
Here's a shot from Louisiana a few days ago, two Buckeyes.
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And a Sulphur from a couple of weeks ago.
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Both shot with Lentar 135mm and Vivitar extension tubes, the top one with half the set.