Odonates of Montana - July 2016
I'm grouping all my Odonate observations from my Montana trip so that I can find them easier, and also so I hope folks might be able to help me ID things a bit faster. :-)
I was and still am pretty unfamiliar with Dragons and Damsels in the north, and before going on this trip I looked on iNat and was surprised to find that there were only about 25 observations from the entire state. Seems there is a hole in the USA for Odonates on iNat! Odonate Central lists many more records for the state, but many of them lack photos, so I was still not quite sure what I would see.
With this in mind, I set a silly goal of doubling the number of iNat Odonate observations while on this trip.
As luck would have it (or not, for Ode hunting), I spent much of my time at higher altitudes on a caving expedition, and the weather was pretty cold and rainy the entire time - not great for finding these guys. I also think that the higher altitude was too early in the season for them. I did see a couple damselfly larvae in a mid-elevation stream, but never saw any adults.
In any event, I'll keep working on IDs for my unknowns, but if @jimjohnson , @greglasley, @scottking, or anyone else who might be familiar with this area has the time to look at some of these, I sure would appreciate it.
Havainnot
Kuvat / Äänet
Havainnoija
beschwarKuvaus
My first snaketail!
Found in a back yard, perching on or near the ground in a sunny patch of straw mulch and dead poppy stalks
Kuvat / Äänet
Mitä
Ophiogomphus severusHavainnoija
beschwarKuvaus
First time seeing this species! I think the ID is correct, based on iNat observations and photos. Sadly, I was unable to get a really nice photo from the front side view.
Perching on the ground in a dry grazed field with dead grass and scattered wildflowers.
There may have been two individuals here, or I may have just found the same one twice.
Kuvat / Äänet
Havainnoija
beschwarKuvaus
Unfortunately, I could not get a good lateral view of this one, but I think this ID is correct.
Kuvat / Äänet
Mitä
Ischnura cervulaHavainnoija
beschwarKuvaus
These 11 photos seem to illustrate the color diversity in the males and females of this species, which really amazed me. Until I started trying to ID them, I assumed that all these were probably 2 or more species. This species was the most common damselfly seen in this area, with at least 200 seen during my wanderings.
I am assuming that my IDs are correct for all the photos, but I'd be happy to be proven wrong!
Kuvat / Äänet
Mitä
Plathemis lydiaHavainnoija
beschwarKuvaus
Three individuals - two males and one female - were seen around the park.
Kuvat / Äänet
Mitä
Libellula forensisHavainnoija
beschwarKuvaus
My first time seeing this species!
Kuvat / Äänet
Mitä
Suku AeshnaHavainnoija
beschwarKuvaus
This was the only Darner I saw in the park, and it spent 5 minutes flying around in the street near a parked car. I was only able to snap these few crummy photos. I suspect that they are not good enough to ID this one, but I am not familiar with Darners in this area, so perhaps there are only one or two options.
My first guess is that it is a female Variable Darner.
Kuvat / Äänet
Mitä
Suku EnallagmaHavainnoija
beschwarKuvaus
I'm not familiar with odonates in this area, but this is my best guess on the ID for this one. This individual seems to have much more convoluted patterns on S5-6 than I see in most other photos, but perhaps this is not a diagnostic feature of the species. Or I could simply be wrong. :-)
Kuvat / Äänet
Havainnoija
beschwarKuvaus
The most common damselfly seen here today. I believe that all the photos are of this species, of both sexes, and at different stages of maturity.
Kuvat / Äänet
Mitä
Suku IschnuraHavainnoija
beschwarKuvaus
I'm not certain that this is a forktail, but I don't know what it is. This was the only damselfly I saw here that looked like this.
Kuvat / Äänet
Mitä
Leucorrhinia intactaHavainnoija
beschwarKuvaus
I think this is in the correct genus, but I have not seen this dragon before.
Quite a few teneral dragonflies that I believe were different species/sexes of Sympetrum were sheltering from strong winds in the tall grass in this area.
Kuvat / Äänet
Mitä
Tummasyyskorento (Sympetrum danae)Havainnoija
beschwarKuvaus
I think this is in the correct genus, but I have not seen this dragon before.
Quite a few teneral dragonflies that I believe were different species/sexes of Sympetrum were sheltering from strong winds in the tall grass in this area.
Kuvat / Äänet
Mitä
Sympetrum costiferumHavainnoija
beschwarKuvaus
I think this is in the correct genus, but I have not seen this dragon before.
Kuvat / Äänet
Mitä
Lestes unguiculatusHavainnoija
beschwarKuvaus
A single female. This was the only Lestes I saw here.
Kuvat / Äänet
Mitä
Libellula pulchellaHavainnoija
beschwarKuvaus
Several adults were seen flying, and these two teneral individuals were found sheltered in tall grasses.
Kuvat / Äänet
Mitä
Leucorrhinia intactaHavainnoija
beschwarKuvaus
A few individuals and one mating pair were seen.
Kuvat / Äänet
Mitä
Sympetrum costiferumHavainnoija
beschwarKuvaus
I think this ID is correct.
Quite a few teneral dragonflies that I believe were different species/sexes of Sympetrum were sheltering from strong winds in the tall grass in this area.
Kuvat / Äänet
Mitä
Suku LeucorrhiniaHavainnoija
beschwarKuvaus
I think this is in the correct genus, but I have not seen this dragon before.
Quite a few teneral dragonflies that I believe were different species/sexes of Sympetrum were sheltering from strong winds in the tall grass in this area.
Kuvat / Äänet
Mitä
Suku IschnuraHavainnoija
beschwarKuvaus
A single individual of this species/sex was seen very briefly in tall grass. I was unable to get better angles or photos, but perhaps someone will be able to suggest an ID from this photo.
Kuvat / Äänet
Mitä
Ukonkorennot (Heimo Aeshnidae)Havainnoija
beschwarKuvaus
A single horrible photo that I can't ID from, but I did manage to see a Darner in Montana!
Kuvat / Äänet
Havainnoija
beschwarKuvaus
I think this is in the correct ID.
Quite a few teneral dragonflies that I believe were different species/sexes of Sympetrum were sheltering from strong winds in the tall grass in this area.
Kommentit
I'll look at these eventually Ben, but I'm in Trinidad with iffy and slow Internet until the 9th of Aug. and lots of damsels in Montana will be really tough for me.
Hi Ben, I'm just back from a family vacation to Wyoming. The return trip brought us through southeastern Montana, kept looking longingly at the Yellowstone River and the cattle ponds passing, but didn't have a chance to stop and look for dragonflies. Found just a few in Wyoming, where it was hot and dry and had been for a long time.
Hello Scott,
Sounds like it was a fun trip, even without stopping at every good habitat. I know! Every time I drove by wetlands or ponds in Montana or Nevada on our recent trip, I just wanted to get out and look for Odonates. :-) I did manage to find some, and a number of new species for me, so I was happy. There were surprisingly few Odonate observations in MT on iNaturalist _ I think I came close to doubling the number.
Thanks very much for your IDs and help with some of my new species. I appreciate it.
Here's a link to Nate Kohler's Montana online guide. I think there were very few Odonata Central records until Nate came along. It's astonishing how much ground he has covered!
http://fieldguide.mt.gov/displayFamily.aspx?order=Odonata
good idea for grouping observations for a trip this way, hadn't thought of this.
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