The town and to the south, down-valley, is in Uvalde County,
and north of town, up-valley, is Bandera County.
This creates a recording nightmare, as everything sort of
has to be found twice therefore in the Sabinal Valley, on
both sides of an arbitrary meaningless political line at
the north end of town. For the stuff I play with,
birds, butterflies, dragonflies, etc., most biological
record keeping is at the county level, at least, so we are stuck.
This is why "biogeographic" areas are the best
measure for things biological. The upper Sabinal River
drainage would be a good definition of this bio-geographic area.
99% of this list is from less than 10 sq. miles, and probably
98% or more is from one single square mile around Utopia.
Year-round observation is a quite different method of
gathering data from the traditional netting study techniques
away from one's local area when only visited occasionally,
even if annually, as prior studies here have been. For instance,
checking out a 1000 sq. ft. butterfly garden two or three times
a week (at the Utopia Library), all fall, as well as knowing
and checking every local lantana patch or puddle spot regularly
results in a very different view of what is happening. Johnny's
super red lantana is best. :)
Of course you have to carry a camera or net to prove anything unusual,
just in case.   :)
Most of the rarities photos are here:
Rare Butterflies
Clytie Ministreak (Ministrymon clytie), Aug. 18, 2020
Update 2021: I think the total local list is 144 now
with the Teleus Longtail Dec. 25, 2021. That does not
count hypotheticals or forms.
~ ~ ~
Older prior list notes -
Local Utopia area total list as of October 2012
is 140 species of which 126 species are photographed.
Only one sps. on list is a photo by another, and outside
the 4 mile range, an accidental photo'd as a what purdy
butterfly izzat pic at Lost Maples, the Many-banded Daggerwing.
The 140 does NOT count the 9 hypothetical records (or 8 forms -
mostly subspecies). With just the hypos the total would be
149 species (!) and we're right on the cusp of detecting
150 species in a 4 mile circle around Utopia.
Zebra Heliconian (or Longwing)
Discussion
137 species of Butterflies have been/were seen within 4 miles of Utopia
in 5 1/2 years, from Nov. '03 to June '09, by one far less than expert.
The 8 "hypothetical" sightings are not counted in the 137 total.
Nor are the 6 "forms" counted in the total. So in theory we
could have 150 species of butterflies right in the area locally.
Certainly if there were 10-20 years of expert coverage, that number
would be documented in the immediate vicinity of Utopia. Update
Fall 2012, 140 species known locally now, 126+ photo'd.
UPDATE 2021: 143 species is the current list.
I have included about a dozen species on the main list for which I have
no photo. That is, sight records. Silver-spotted Skipper is (was) seen
annually, but it's very difficult to get a picture of. If it is a species
considered a "tough ID," or a new county record, it is usually relagated
to hypothetical status, and not added into the total. Whereas, if it
is a readily identifiable species, most seen more than once, some regularly,
and are not likely to be confused with anything, it is included on the main
list based on my sight identifications, for completeness and accuracy.
We know they are occurring whether or not we can get net or lens on them.
So they should be on the list of things that occur here.
This I consider more important to our understanding of what is here, or not,
than whether or not I can prove it to a naysayer that wants to question it,
that didn't spend two decades here making tens of thousands of butterfly ID's.
Identifiable photo or voucher was obtained of 126 of the 137 species
listed (again, without the Hypos or forms), irrefutable evidence rate is 90%.
There are about 30 accepted NCR's (per The Lepidoptera Society Seasonal Summary,
Charles Bordelon) represented (ca. 25 in underworked Bandera Co., 5 in heavily
worked Uvalde Co.) amongst the records. Most of the documentation photos
can be viewed on the website either on the butterfly photo pages,
butterfly news, or bird news pages, or by request.
Surely many additional rare or vagrant species move through undetected
due to lack of knowledgeable observer coverage. Plus the fact
that even living here, coverage is a couple or few hours, two or 3 days
tops per week, besides the yard. Which has provided a number of
the great records, incredible since it is random, and natural, looking
just like the million acres around it, and so with no good reason to
attract Giant White and Spot-celled Sister for instance. How many
must there really be?
The Many-banded Daggerwing (Marpesia chiron) photographed because it
was neat looking by a nature watcher nearby at Lost Maples, is an
example of what might float through, for the most part un-noticed.
Amazingly, I photo'd a Ruddy Daggerwing (M. petreus) there Aug. 08!
Eastern Tiger Swallowtail
Perhaps most significant, or at least most interesting and exciting
to me is the number of species occurring that are generally
considered "Lower" Rio Grande Valley specialties
in the U.S., many of which are likely Mexican in origin.
Butterfly people flock to the lower Rio Grande valley
to look for these species. Examples are Ruby-spotted and
Ornythion Swallowtail, Yellow, and White, Angled-Sulphurs,
Florida, Giant, & Great Southern, Whites, Zebra, and
Julia Longwings, Band-, and Spot-celled Sisters, Red Rim,
Dingy Purplewing, Blue-eyed Sailor, Malachite, Gold-spotted
and Tailed Aguna, Two-barred Flasher, Least, Tropical Least,
Sickle-winged, White-patched, and Purple-washed Skippers,
Zilpa and Brown Longtail, plus the two species of Daggerwings.
Incidently, 22 of these 27 "best butterflies" were photo'd.
Mexico is about 100 miles SW as the butterfly flies, or is
blown from. A butterfly could easily arrive here from Mexico
in a single day. Zonal flow is from the south, and often at
20 MPH, often for days on end. Which could easily bring a
butterfly from Mexico in a day or two. Most of these
vagrants are beat up, worn, torn and frayed, tattered, much
worse for the wear and tear. A very few are in good condition.
Most look like they have a few hundred miles on them.
The boom and bust hydrological cycles wreak havoc with local
populations, and attempts to study them. They fluctuate wildly
and are much better in wet periods, it can be dismal in droughts.
Things I thought were common residents from the first five years
I was here are absent now. Butterflies much more than birds
for instance, fluctuate in populations and even presence
far faster and more drastically.
Many species are cyclicly invasionary, e.g. Zebra Longwing twice
in 03-11 period was common locally, then a couple years, a few were
about, and half the years none were seen. This is typical of
many species here. Crimson Patch was nearly common in wet period,
but absent last 3 years as of 2011 during drought. One year of eight
Red Rim was everywhere, otherwise none. The year we found the
Ruddy Daggerwing at Lost Maples, another was at the Library garden
a week later, and the week prior one was in Concan. Common (No.) Mestra
is another irregular one, thousands in 2008 or 09, absent 10-11, and
hundreds in '12. The irruptive immigrants often comes in waves.
It probably takes a decade of recording to even get one chance at
most of the stuff hitting their perfect conditions boom cycle
and revealing the complete story of their status and abundance.
If one was only here the four years there were no Zebras (or Mestras)
one could surmise they didn't occur here. Yet they can be common.
That is with the non-resident irruptives, then it is another story for
the apparent residents, a number of which have disappeared in the drought.
With the acute drought, for the first time in 8 years, in 2011 I did
not see a single Arizona Sister locally! They were common the
prior 7 years! Update: NO Sister again in 2012! Two years now
it is absent where was common, remarkable. Just the last two
years of study would say they aren't here, a very incomplete picture.
UPDATE: no AZ Sisters in 2021, a few in 2020, LTA now!
There was a drought called exceptional from 2008-2017 or so.
Which was declared hydrologically over. Though we have had rain
the last four years, it was nowhere near enough to catch up the
deficit. Desertification has been strong and major factor the
last two decades here. We remain unrecovered biologically and in
butterflies it is very noticable. Since that extended period
of exceptional drought I have seen no Silvery Checkerspot,
Carolina Satyr has disappeared, my last Common Wood Nymph was 2014,
a few Sisters for a couple years, but none in 2021 again, they used
to be common. Dusky-blue Groundstreak has gone from abundant to
notable. And on and on. Same with dragonflies. And lots of
other groups of animals as well.
Initially this was a list with status of each species included,
but it changes so much for so many, I did not use it, despite
continues revisions. Every year or two I have to make changes on
half. I opted on the list above to just call out two categories
for the things that are not regular and expected, the non-residents.
Less than annual (LTA) and accidental (X) are noted behind each
species if the shoe fits. LTA species might be common some years,
but are not a sure thing to occur every year. Otherwise if neither
of those two designations, they should be considered likely, annual,
expected, and fairly normal. Anything X or LTA should be documented,
photos if at all possible.
~ ~ ~
Update 2021: I have not recently added up a new total, but
I think it is 143. The Utopia Library list is stuck at 103
methinks. The library garden was massacred by plant butchers,
not to be confused with gardeners or horticulture folk.
They cut everything as if it were a Lantana and much great
stuff was lost, it has never recovered. It has been fairly
poor for several years now. I did perform, again my
favorite, the ignored overture in B-flat, which is how it
falls of course, to no avail, such as it does. The now ten
year old semi-native deco gardens at north and south ends of
town and the park entrance are often better if in bloom.
In fall often Frostweed patches are a best bet.
We moved in 2013 to a couple miles south of town in
the old Berteau house along the river habitat corridor.
In an acre of the two acre yard, the list in 2021 is 97 species.
In eight years, with hardly any flowers but a few
things the deer and dillos leave. Have planted lots
of stuff that did not make it, and there has been no truce
yet. We have a nice little patch of Blue Mistflower
Eupatorium around front porch, some Tropical Sage, a
patch of American Germander, a half-dozen Red Turkscap,
one Frostweed, a Mealy Sage, a Wooly Ironweed, and a
few Lantana. It ain't much. But three short of
a hundred is fine for just lookin' around outside
without starting the car.
~ ~ ~ ~ ~
Acknowledgements
A very big grateful THANK YOU to Charles Bordelon and Mike Overton,
for being so willing to share their knowledge and expert experience,
review photographs, and generally help an amateur get it, right.
Their expertise and kind help made this list a whole lot better.
Utopia ~ June 2005, revised Oct. 2012, revised Oct. 2021
Theona Checkerspot
~ ~ ~ ~
Below are some older notes regarding the list, which were above,
now are just here for archives sake if folks wonder where something
they saw went...
Update 2013: one new species as of Oct. so far this year,
Polydamus Swallowtail, = 141 sps. locally. Spoke too soon,
Purple-washed Skipper photographed Nov. 19, for a UvCo NCR.
Make it 142 now.
(This was written many years ago): In less than 3 years I
have seen 95 species of butterflies at the Utopia Library
Butterfly Garden alone. Update: in the fifth year I
finally hit 100 species at the Library Butterfly Garden.
The first 90 were faster than the last 10, as it goes. But at
least it is established 100 species can occur in a single barely
maintained native (Tex. hill country species) garden in town here.
Much current butterfly news is on the Bird News page.