Here are my other Brazos Bend
and/or critter pages:
----------------------------------------------------------------
OR, FOR OTHER ANIMALS:
Alligators
at Brazos Bend State Park Introduction
Critters at Brazos
Bend State Park Page 1
Snakes-nonvenomous
1-------------------------------------------
Critters
at Brazos Bend State Park Page 3
Snakes-nonvenomous
2-------------------------------------------------Insects,
non-toxic
-Mantids-Ant Lions
Snakes-nonvenomous
3------------------------------------------------Spiders
Snakes-venomous------------------------------------------------------Mammals
Birds-Waders----Birds-Raptors---------------------------------
Lizards!--Turtles!
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Welcome
to the Visitor's Center at Brazos Bend State Park. That's me with the giant
walking stick (06/20/2004). As I get more material in my domain, I'm able
to give a separate page to various animals. This page features non-toxic
insects. I feel that toxic insects each should have their own page for
easier reference.
4/30/2006--This
is the last story from this single day, and last for for April as I continue
my update bonanza.
While
inspecting the deck near the VC/NC, I found this caterpillar resting along
one of the crosspieces. Caterpillars are hard to identify, but a cursory
inspection gives me the impression that it resembles the larva of a moth.
This moth is called the Gloomy Underwing, or Andromeda Underwing (catocala
andromedae). Underwing moths are called so because the pair of rear
wings is usually a contrasting color from the pair of front wings. These
are held under the front wings (which are usually a color well-suited for
camouflage). The moth can suddenly show these highly-contrasted underwings,
which causes a startling color effect.
Searching
the internet yielded the information that this particular larva seems to
have a diet consisting of a number of plants. For one website out of my
domain that describes this moth, click here.
For more information on caterpillars in general--also outside my domain--click
here.
Why
did this catch my attention? Look how BIG this caterpillar is!
--
--
--
--
--
AT
REST
HEAD END
CLOSER
EVEN
CLOSER
PAIRS OF EYES AND TWO DARK SPOTS WITH A
QUARTER
THE QUARTER, CLOSER
-
-
-
-
A QUARTER STICK
RICK STICKING AROUND RICK'S NEW FRIEND, CLOSER
LET'S SHAKE HANDS
WALKING ON MY HAND!
WALKING ON MY HAND VIDEO 584KB
August
24, 2003On
a different note, I have to relate an incident that happened at the VC/NC
today. We've been gifted with the nocturnal appearance of a type of click
beetle that has two spots that glow in the dark like eyes. Evidently, the
appearance of this beetle was exciting news for some local entomologists.
They (the beetles, not the entomologists) are quite striking, and the glow
from the spots is easily visible in a lighted room with just a small amount
of shading. One of the park people had taken a beetle out to show
everyone, and we were all being impressed. I turned my back for a second,
and when I looked again, everyone was looking up.
"Where'd
it go?"
"It
went up towards the light!"
"There
it is; it---OOP! Spider got it!"
There
were a few moments of silence....
Most
beetles can fly. This species of click beetle can fly. It flew from the
palm of the hand holding it to land on the upper edge of one of the fluorescent
lights---where, we (and the click beetle) discovered, a spider lived. When
it landed, a spider immediately ran out, grabbed it, and disappeared back
above the light. End of beetle. Fortunately, there are many,
many more.
August
02, 2003l
admit it. I like some science-fiction. I like some science-fiction movies,
I like some movies with monsters, and some movies with alien creatures
that will come up upon their unsuspecting prey and rip their head off.
But,
you know what's really, really cool? This kind of thing is happening
on Earth, in real life, all around me! And, unless you (my internet guest
who's reading this) live somewhere like Antarctica, it's happening all
around you, too! To see it, all you need to do is stop thinking
all the time, take a mental rest, and just look around.
The
RICKUBISCAM today is a picture of something that caught my attention when
it moved just at the edge of my peripheral vision. At first glance, it
looks like two dragonflies attempting to make more little dragonflies.
Then we can see that they appear to be two different species of dragonlfly.
Then,
if we take a closer look (see THIS CAN'T BE GOOD, below), we can see that
the brown dragonfly (According to Park Naturalist David Heinicke, the Green
Dragonfly is a female Eastern Pondhawk-Erthemis simplicicollis; the deceased
one is a female Widow Skimmer - Libellua lucuosa. Thanks, David.) is missing
its head and part of its thorax. A little bit closer view (see CONCEALED
WEAPON, below) shows the mandibles slipping from their wonderfully complex
and mechanical sheath and grinding away at the hapless victim. To see two
short clips of the mandibles in action click on the following links clip
one (flv video 647kb, or see EATING 1, below); clip
two (flv video 658kb, or see EATING 2, below). (Sorry about the movement
of the camera. I couldn't set up a tripod.) Now we can
see that this is the outcome of another intricate, high-speed dogfight
between two dragonflies. Those bozos! Can't they cut that stuff out and
go after deerflies and mosquitos instead? There must be plenty of those
to go around! However, when you get to this level of existence, you have
prey animals, and then you have animals that you have to compete with for
that prey, and you have animals that might think YOU are prey. A dragonfly
eating another is not only giving itself more food by eliminating competition;
it's getting a meal directly while it's eliminating the competition!
Not to mention that it's also eliminating a potential attacker. Wait, I
mentioned it. Oh, well.
-
-
-
-
GHASTLY
EMBRACE THIS
CAN'T BE GOOD CONCEALED WEAPON DRAGONFLY
EATING 1 DRAGONFLY
EATING2
July
27, 2003This
is how I think it happened:It
glided silently through the jungle that was its hunting ground. Among its
fellow creatures, it was the apex predator, and it moved its delicate,
sleek length through the clearings and passages of its domain. From
time to time, lesser creatures would become visible, and many of them were
attacked and killed in seconds, and then chewed to pulp and eaten. Many
times, this fearsome predator wouldn't even bother to stop moving as it
ate its helpless victims. As a flier, it had no peer, and had evolved a
fantastic behavior that would allow it to fly at prey (or challenge others
of its kind) by flying in a manner that--although it was moving at a terrific
speed--would allow it appear immobile to its intended target. Since
it appeared to be a stationary object, its intended target would ignore
it; until it was too late, and then another victim could die. The predator
was a Dragonfly--a Green Darner. Its huge compound eyes covered its entire
head, and it could see in almost every direction simultaneously.
As it
flew through a stand of tall weeds (grass is common for what happens next)--perhaps
swooping for prey--there was a sudden movement from above and behind.
The dragonfly may have felt a loud buzz, and suddenly it was hit from above,
in the thorax, right between the wings. Immediately after, a sharp spike
was thrust into the dragonfly's beautiful hard shell, and it lost control
of its wings. It hit the ground, and was already helpless as its bodily
fluids began to be pulped and sucked out through a single hole in its exoskeleton.
The dragonfly was doomed.
The
Dragonfly had been attacked by a Robber Fly. These are large insects that
are *also* apex predators. They are also deadly and efficient hunters.
However, where the Dragonfly relies on strength and speed, and can fly
and attack in the open, the Robber Fly will often perch on a good spot
(like a tall blade of grass) and just watch. When something interesting
passes, the Robber Fly launches its surprise attack, and hits its prey
in flight. Where the Dragonfly chews its prey to pulp with its mandibles,
the Robber Fly uses piercing mouthparts to suck out juices.
The
image below (IN ITS CLUTCHES, below) shows the outcome of the hunt. I've
seen Robber Flies hunting, just as I've described. Often, they just fall
to the ground (although it seems they try to brake with their wings) with
their prey. I have been trying to get some good close-ups of this for at
least a year, but the insects have always flown off. This morning,
however, one of the volunteers (cool, Allen!) just walked into the visitor
center with the Dragonfly and its killer. The Robber Fly was attached,
eating, and would NOT move. I snapped a few pictures. The pair
of insects was then left outside, where I was able to get some better close-ups.
The three pictures below are three views of the same image. The fingers
are mine, and you can see the scale. I've cropped in to show the mouthparts
where it pierces the thorax. Later in the day, the Dragonfly was
still in the garden and was intact, though reasonably empty. Ants had found
the carcass, though (lots of ants...FIRE ants. No more pictures. Sorry.).
And the Robber Fly had gone; perhaps to attack another Dragonfly, perhaps
to be eaten BY a Dragonfly.
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--
IN
ITS CLUTCHES
LLET
ME EAT IN
PEACE
KILLER AND
VICTIM
NEAT EATER
August
4/August 5 2002This story
actually started right after my encounter with the arboreal Dolomedes Albineus.
The Live Oak trees near the Visitor's Center have had large mats of silk
on the bark for some time. In spots, this silk is quite thick, and many
visitors, and some volunteers (including me) also wondered what caused
it. See (SILK 1, 2, 3, below)
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---------------
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SILK
1
SILK
2
SILK 3
Close
examination didn't show anything obvious (like spiders or caterpillars).
I'd wondered if the silk had anything to do with the Dolomedes, but the
link was just circumstantial (both happened to be in the same tree).
Finally David (park naturalist) had an answer (well, I guess no one had
asked him before.). The creatures responsible were called "barklice". These
are not true lice, but actually insects. Well, of course, I had to find
more information. I looked on the internet, and found some information,
but not many pictures. So, I decided to go back to the park Monday (August
6. I'm taking time off from work anyway. HAHAHA!) and try to see some of
these insects. I was successful! Some of these images show a closeups of
one on a page from a small notepad. One (UNDER THE SILK, below) shows them
on the tree, after I've pulled some of the silk away. These insects are
extremely small, and difficult for me to photograph. I'll return and see
if I can get some better pictures. in the meantime, these will have to
do.
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UNDER THE SILK
AT KNIFEPOINT
THE KNIFE POINT
ON THE KNIFE BLADE
Ok.
So, these are barklice. But what are they? What do they do? Well,
they are insects, in the order Psocoptera. They are very small. They
live in large groups. They eat molds, fungi, pollen, dead insects,
aphids, and other similar material. In short, they "clean the tree's bark".
The barklice build the silk mat to work under (click on these links to
see video clips of barklice part
1 (flv video 1,214kb), or, part
2 (flv video 618 kb)). After they're done (probably after they've exhausted
a particular area of all small foodstuffs), they leave. According to some
accounts I've read, they remove the webs. After finally seeing how small
these insects are, I'm amazed at the amount of silk that they can produce.
This has to cost the insect some survival resources. If they produce this
webbing by processing what they eat, then how much debris must they consume
just to produce a single silken strand? How much to cover the large areas
with those mats of silk? These are not to be confused with the various
caterpillars that may build tents in the leaves of trees. Barklice seem
beneficial for the tree, and seeing these webs (which are close to the
bark, and not in a "tent" or "globe" configuration) should probably be
a good omen for the tree. I, for one, am happy that this "mystery"
is finally solved.
If you'd like to know more about the park follow these links:
Brazos Bend State Park The main page.
Brazos
Bend State Park Volunteer's Page The
volunteer's main page.
Go back to my home page, Welcome
to rickubis.com
Go
back to the RICKUBISCAM page.
Go
back to the See the World
page.