I didn’t have a chance to post last week, so what you see here represents two weeks of data. Swarm reports came from the following locations:
Miami Beach, FL
West Bend, MD
And here are the maps for the last two weeks:
Red pins are static swarms, yellow pins are migratory. Click the map to enlarge!
It continues to be a little slow so far this year, though there was one migratory swarm reported from Utah this week, which is exciting. There has been rather consistent activity in the southeastern part of Texas over the last month, though nothing really extraordinary seems to be happening anywhere so far. Hurricane Arthur didn’t even seem to stir anything up! I’m still hoping things will pick up soon, but you never know.
One thing has disturbed me though. In the past several years, green darners have made appearances in swarms over and over again. They often form the bulk of swarms. This year, very few people have described anything that sounds like a green darner from their swarms. I’ve also started to hear some ominous rumblings on the odonate listservs and Facebook pages where people have started to ask where the green darners are this year. People have really started to notice their near absence, which isn’t good. We typically have a lot of darners at the pond at the field station where I work, but this year I haven’t seen many at all, maybe 5 or 6 total. At this time of year, we should have 5-6 on the pond every day, not 5-6 for the entire season! There’s always a chance things are just terribly late this year and things will normalize at some point, but I’ve personally noticed some weird things happening this year. Monarchs are out in North Carolina in droves right now, and they’re normally long gone for the heat of the summer, having migrated further north. The common milkweed is going absolute gangbusters, but there are several conspicuously common butterflies (eastern tiger swallowtails and pipevine swallowtails among them) that are well below their normal numbers this year. Fireflies are STILL out here, and the June bugs emerged a week or two early. Have any of you noticed similar things out of whack in your area? I shouldn’t extrapolate what I’m seeing in North Carolina to the rest of the country, even the rest of the east coast, but I’ve heard enough from other entomologists on social media to think that this is going to be an odd year. It will be interesting to see if this ends up being a weird swarming year too!
Keep reporting those swarms! Was very pleased to see swarm reports from several regular readers over the last couple of weeks. Thanks everyone!!
Have you seen a dragonfly swarm? I am tracking swarms so I can learn more about this interesting behavior. If you see one, I’d love to hear from you! Please visit my Report a Dragonfly Swarm page to fill out the official report form. It only takes a few minutes! Thanks!
Want more information? Visit my dragonfly swarm information page for my entire collection of posts about dragonfly swarms!
6 thoughts on “Swarm Sunday: 6/22/14 to 7/5/14”
Saw my first one yesterday – was getting a little worried they were MIA
Glad to know that you’ve seen at least one! I’m sure there are still some out there, but there sure don’t seem to be many this year…
Yes–things have been out of whack in central-eastern PA. Many birds and all our local deer were late in reproduction cycles. It’s mid-July, and I have seen lower-than-average honeybee numbers on the white clover; the milkweeds are blooming like crazy but few butterflies, few bumblebees. Just saw the first hawk moth/sphingidae of the season, though.
As for the dragonflies, only two so far, neither one a green darner though I didn’t get a close look. Fireflies still everywhere, though normally they should begin to slow down soon; their peak here is usually June 20, but the peak came a few days after solstice this year. Tree crickets started up less than a week ago, which is also a tad tardy (though not by too much). The junebugs and Japanese beetles were right on time, but hardly any sign of ladybugs, which is totally odd.
Interesting… Thanks for sharing! It sounds like you’ve got some of the same odd things going in your part of the country that we do in central NC.
I live in Williamsburg, VA and have never seen a swarm of the Dragonflies before. They are in our neighborhood. I checked the web to try and understand why and I came to your page. Thanks for the info!
Glad I could help you find the answers you’re looking for!