Tree Sharpening Caterpillars

November 2nd, 2013 - 4:38 PM | Filed under Featured Photos | 1 Comment
~30mm long | January 5, 2013 | Panga Ecological Reserve, Minas Gerais, Brazil

~30mm long | January 5, 2013 | Panga Ecological Reserve, Minas Gerais, Brazil

What appears to be a flower here is actually a group of caterpillars working their way down a sapling trunk.

They look like they could do a decent job sharpening a pencil, about the same width as this tree(?) trunk.

Side view | Trunk ~5mm wide

Side view | Trunk ~5mm wide

Despite the black background, this was taken a few hours before sunset. At the time there was probably a few feet of the trunk left. I marked the location and returned after dark. I found no trace of the trunk or the caterpillars. They apparently ate the whole tree.

I know there are defoliating caterpillars. I know there are wood boring caterpillars. I never imagined there are caterpillars that consume an entire tree though. That’s assuming they eat leaves, which I didn’t observe.

Long-legged Fly with Prey

October 22nd, 2012 - 8:54 PM | Filed under Featured Photos | 1 Comment

~7mm | August 23, 2012 | Sebring, Fl, USA

It wasn’t until I reviewed this shot on my camera and saw the prey, that I realized long-legged flies (family Dolichopodidae) are predatory.

Abandoned Hornet Nest over the Chattahoochee River in Fall

October 14th, 2012 - 10:04 PM | Filed under Featured Photos | No comments

October 13, 2012 | Roswell, GA, USA

In Fall, bald-faced hornets enter the autumn of their lives. Surviving adults, no longer responsible for providing masticated prey for the colony’s growing young, enter into a retirement of sorts. They abandon their nest and spend their last days, up until the first frost, feeding on nectar. Only mated queens survive to found new colonies the following year.

 

 

Highlands Tiger Beetle

October 10th, 2012 - 11:06 PM | Filed under Featured Photos | 5 Comments

~7mm | August 21, 2012 | Lake Wales Ridge, Polk County, Fl, USA

I wasn’t properly excited when I photographed this tiger beetle. I now know this species, Cicindela highlandensis, is a somewhat rare endemic species. There were no shortage of them at this particular spot though.

Honestly, I ignored them at first, not being sure I wanted to invest the effort required to get some good shots. Eventually, I had already prostrated myself for some shots of other subjects, so I figured what the heck. I’ll admit I was also somewhat motivated by a desire to share some tiger beetle shots here for frequent commenter Ted C. MacRae to see. :)

Head on view, Ted’s trademark shot I think.

I like those single small hairs that stick up from above each eye.

These really are relatively small tiger beetles. I’m guessing that doesn’t stop them from tangling with big prey though. Looks like this one perhaps bit off more than it could chew, since it seems to be missing some antennal segments.

Another view from the front, showing missing antennal segments

Their dark color allows them to blend in quite well with all the other debris scattered about their sandy habitat. You don’t really notice them until they take flight.

Dorsal shot

I’m going to follow Ted’s lead and not reveal here the exact location where these were found. Looking at the timestamps of my images, I spent less than five minutes chasing this one beetle. If I go back, you can be sure I’ll spend more time photographing this species.

Female Amanda’s Pennant

October 8th, 2012 - 9:07 PM | Filed under Featured Photos | 3 Comments

~30mm long | August 22, 2012 | Allen David Broussard Catfish Creek Preserve, Haines City, Fl, USA

A female Amanda’s Pennant, Celithemis amanda, perches along a sandy trail in a relatively unvisited state park.

Mating Treehoppers

October 1st, 2012 - 9:11 PM | Filed under Featured Photos | 4 Comments

~4mm body | September 29, 2012 | Roswell, Ga, USA

These mating treehoppers (Acutalis brunnea) picked a good place to get together, at least from a photographer’s perspective. I like the composition of this full frame image, but there’s so many different ways I could crop it.

Here’s a closer look at the pair.

Cropped view

I’ve stared at the full size image, but I can’t decide which one is male and which one is female.

 

Black-Dotted Ruddy / Holly Looper

July 23rd, 2012 - 11:10 PM | Filed under Featured Creatures | No comments

Being National Moth Week, I have every excuse to post about one of my favorite subjects. Admittedly, I get more excited about caterpillars, but I enjoy seeing the moths that most of them become.

Back at the end of April, I was distracted by something while going to check the mailbox. Actually, I’m often distracted any time I venture into my yard, but that’s kind of the point of having one for me. Anyway, some large hollies form a hedge along part of my driveway. I spotted a caterpillar dropping from from the holly to the ivy beneath it. I grabbed it for a closer look and started scanning the holly for others. I quickly found another one and brought them inside for rearing. Less than a month later, I was rewarded with a Black-Dotted Ruddy, Ilecta intractata.

25mm | May 17, 2012 | Twelvestones, Roswell, GA, USA

The common name refers to the four black dots, one centrally located on each wing, which help identify it.

The plumose antennae identify this specimen as a male.

Male, based on the feathery antennae

The caterpillars were plain green, which camouflages them well in holly foliage.

~19mm | Dorsal view of plain green caterpillar

Because of their plain appearance, I figured they would be difficult to identify. As it turns out, if I’d just cross-referenced the food plant, I’d have identified them pretty easily. The caterpillars are in fact known as Holly Loopers.

Demonstrating the source of its common name, looper.

They feed exclusively on holly, but don’t seem picky about which variety. I have a different type of holly in my backyard, and I found a dozen or so feeding on it as well. In fact, it was difficult to find a leaf that didn’t show evidence of their feeding behavior. As they feed, they notch out deep cuts.

Notching the leaf as it feeds

It didn’t spin a cocoon, so it probably pupates in soil normally. That would explain why it was dropping from the holly when I first encountered it.

10mm | Pupated around May 3, 2012

Here’s hoping that you’re distracted by a few moths this week. Just leave an outdoor light on for them, and you’re sure to be rewarded with something interesting.

References:

Peterson Field Guide to Moths of Northeastern North America
by David Beadle and Seabrooke Leckie
A Field Guide to Moths of Eastern North America
by Charles V. Covell, Jr.
Caterpillars of Eastern North America
by David L. Wagner

Yellow/Black Treehoppers with Ants

July 14th, 2012 - 9:06 PM | Filed under Featured Photos | No comments

~5mm | January 7, 2012 | Tupaciguara, Minas Gerais, Brazil

Here’s yet a different species of colorful treehopper. These too were found in association with ants.

A busy photo, but packed with natural history.

Ants Tending Treehoppers, Poorly Perhaps

July 9th, 2012 - 11:36 PM | Filed under Featured Photos | No comments

~3mm | January 7, 2012 | Tupaciguara, Minas Gerais, Brazil

I had planned to post just a single photo of this scene with ants tending treehoppers. Here we see at least two different colorful treehopper instars, with one actively molting. Ants like the one shown above tended to this small grouping of treehoppers. As I was choosing a photo to post, I noticed something strange about the treehoppers though. Do you see it too?

Look closely and you’ll see that a few nymphs have parasites. I wasn’t sure at first, so I started looking through my other photos. Sure enough, almost every one had one or more parasites. The parasites seem to prefer hiding under the wing pads and below the thorax.

Note the orange parasites hanging below the uppermost treehopper nymphs

See the parasites peeking out from beneath the wing pads of the lower nymph?

Most of the parasites were small, but there were at least a few plump ones.

Note large parasite on uppermost nymph

None of the photos provided a clear view of the parasites, but I suspect they are mites. In any case, apparently the services provided by the ants don’t include grooming.

Checkered-Fringe Prominent Rearing

July 4th, 2012 - 5:43 PM | Filed under Featured Photos | No comments

30mm | 29 October 2011 | Suwanee, GA, USA

This was one of the last caterpillars I collected last year for rearing. I generally stop looking around the end of October.

This particular caterpillar is fairly distinct and easily recognized as Schizura ipomoeae. The stripes on the head capsule are diagnostic.

Head on view

The adult on the other hand is more difficult to recognize, I think. I’d have probably given up identifying it if I didn’t already know what it was based on the caterpillar. This particular one emerged in early May.

20mm long | 11 May 2012

You might have noticed I haven’t posted anything in awhile. I get a lot of enjoyment from posting here, and I remain committed to doing so whenever possible. Lately it just hasn’t been a priority for many reasons. Hopefully, I’ll now be able to get back to posting more regularly.