The Mined Lands WA in southeastern Kansas encompasses
reclaimed coal strip mine lands that comprise a series of lakes and ponds
surrounded by grassland and timber. The huge power shovel, "Big Brutus"
shown at right (yes, that is a pickup truck parked to the left of the left front
track) was used to remove the overburden from the coal layer. This was a
big operation, and the total area of the MLWA, in scattered locations
through portions of Cherokee, Crawford, and Labette counties, is 14,500
acres.
I had collected at the area once before, a number of
years ago, and at that time, concentrated on the pond margins. This trip,
taken on 28 & 29 June, 2000, focused on the brushy margins, grassy areas, trees, and roadsides.
The figure on the right below shows a typical pond and
surroundings.
The first day I arrived at the area in late morning; skies were overcast and drizzly. The rain gradually stopped and the skies became partly cloudy. Temperature got up into the mid-70's. I collected from about 11 am till 4:30 pm. The second day was sunny, with the temperature reaching the mid-80's. Collecting took place from 10:30 am till 2:30 pm.
Damselflies taken in the grasses and on the ground near the ponds included: Argia apicalis, Argia fumipennis violacea, Argia moesta, and Enallagma basidens. Occasionally an Erythemis simplicicollis dragonfly was also seen.
As the day warmed up I began searching in the heavier vegetation,
including dogwood thickets and brushy herbage along the roadside. The most
common dragonfly throughout my two days in the area was the libellulid
Libellula luctuosa, the Widow Skimmer. This species was present in
all stages from teneral to fully mature, and both females and males were
present. They were extremely abundant. Probably the next most common
were the Eastern Pondhawks, Erythemis simplicicollis. Most of these
were either immature males or females; only occasionally was a mature powdery
blue male seen. They perched low in the vegetation, unlike the Widow
Skimmers, which perched on top of the bushes. Often the pondhawks also
perch on the ground; they can appear grayish in poor light, and can easily be
momentarily mistaken for clubtails (as Sid Dunkle pointed out in his Florida
guidebook). Every so often I would glimpse a large, dark libellulid:
Libellula incesta. I also caught glimpses of immature
Libellula's that were either incesta or vibrans (see
picture above right - L. vibrans immature male). Perithemis
tenera and the occasional Pachydiplax longipennis were also
around.
After
lunch, with the sun out and the ground and air getting warmer, I began working
the road margins. I saw one or two clubtails on the gravel/dirt road, but
was unable to get close. Eventually I did manage to net one - a teneral
female Dromogomphus spoliatus. I also began to see female and male
Pachydiplax longipennis and netted an immature Libellula cyanea
(left). (L. cyanea, L. incesta and L. vibrans are
strictly eastern in their occurrence in Kansas). Libellula incesta
males in mature colors were seen several times, but nearly every time they
flew immediately into the tops of the trees when disturbed from a lower
perch. There were also Epitheca princeps patrolling the
roadway.
In
pursuing one of the large male Libellula incesta into a small meadow
encircled by taller trees, I noticed an amber winged dragonfly get up from deep
within the grasses, fly several yards, and drop into the vegetation again.
I pancaked the spot where it had landed, and lifted the net bag to get it to fly
up. I was actually hoping for a Libellula auripennis; the species
was recorded by V.C. Allison in 1921 in Crawford County, but his specimens were
lost, and there is no voucher to verify the occurrence. I didn't
get that species, but was pleasantly surprised by what was in the net: a lovely
orange male Neurocordulia xanthosoma (see images right above and
below).
I was so pleased that I spent half an hour or so in the now sunny spot, chasing up four more of the species and capturing one of them. I was to take two more the next day, although in the warmer and sunnier weather on the 29th, the individuals that were spooked from their perches generally flew off for longer distances. One that I disturbed flew into the lower reaches of a small eastern red cedar (photo at left), and when I pancaked my net over the spot, not one but two individuals buzzed up into the net bag. N. xanthosoma is one of my favorite dragonflies; the amber wing color and the orange spotting on the veins of the costal area of the wings is quite lovely.
My
return visit on the 29th involved many of the same species, with more
Libellula lydia males and females about, most of them immatures, though I
did encounter one or two mature males. There were also Celithemis
eponina perching on the shrubs - both mature and teneral individuals.
I also took a number of fairly fresh, though not newly emerged, female
Gomphus militaris (see image at left). These were perched on the
vegetation in the sun. Interestingly, I saw no males at all on either day,
though I saw perhaps a dozen females and caught half of them. Males can be
seen on the Ninnescah River Odonata page.
A new
species for me in Kansas (although I had seen specimens taken in adjacent
Crawford County by Ragan Todd a few years ago, and had collected the species in
Texas) was the pretty little Dythemis velox. Both males and females
were often perched along with the L. luctuosa on the vegetation. I
also took a number of Dythemis fugax, a species that is common near my
home in Sedgwick County along the Arkansas River. I was a bit surprised to
see the two species in the same habitat. The scanned images at right and
below are of a female D. velox.
I was surprised that I saw no aeshnids at all at this site on this visit. Of course, that means there are good reasons for another trip later in the summer.