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Author Archives: Troy Bartlett
Spider in Lair
December 30, 2011 | Quirinópolis, Goiás, Brazil
An unidentified spider peering out from its lair in a tree branch.
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Clearwing Moth
~20mm wide | December 31, 2011 | Quirinópolis, Goiás, Brazil
This colorful moth in the family Arctiidae looks a little worse for wear. Nonetheless, it’s quite striking and I’m sure a fresh specimen must be even more so. I later saw another one of these near a porch light so it might be a common species.
While searching for a possible identification, I came across this blog posting. It describes how hundreds of caterpillars were invading people’s home in Piracicaba, São Paulo. With the help of a biologist, they found both the host plant and some pupae for rearing. What emerged looks very much like the moth above, identified as Cosmosoma teuthras, a common moth throughout Brazil. Check the site for photos of the caterpillars, pupae, and an adult. I have no idea if there are similar looking species, but it seems like a good possibility for what I found.
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Easter Flowers
For Easter, I thought I’d post photos of some Pink Lady’s Slippers. These were all taken at a local nature center almost a year ago. This orchid is generally difficult to find, but abundant where conditions permit.
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Identification Challenge #14 Reveal: Arched Hooktip
27mm wide | March 24, 2012 | Twelvestones, Roswell, GA, USA
No one commented on the latest identification challenge. Despite showing just the tip of the forewing, the image provided showed the distinctive feature of a subfamily of moths commonly called hooktip moths. If you got that far, it’s a pretty simple process of elimination since there are only a handful of North American species, each one easily distinguished from the other. This species is the Arched Hooktip, Drepana arcuata.
This individual appears to be a male, based on the widely bipectinate antennae.
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Identification Challenge #14
March 24, 2012 | Twelvestones, Roswell, GA, USA
Today I found my first moth in the overwintering container I keep outside. Can you identify it from this wing fragment? I’ll keep the comments hidden for awhile, but this should be an easy one.
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Cobra-cega (Blind Snake)
~12cm | January 8, 2012 | Tupaciguara, Minas Gerais, Brazil
I came across this small blind snake as it slowly wormed its way along a clear patch of ground next to a corn field. I thought it first it might be a worm, but something just looked a little odd about it. I picked it up and through my hand lens I could see it had scales. I also spotted its tongue darting in and out of its tiny mouth.
I didn’t know it then, but I was in the initial stages of chicken pox. All I knew was that I was feeling poorly and wasn’t motivated to take pictures in the field. I stuffed it in a small container for pictures later. The next day I took a few photos as I held it in my hand. I released it later that day in a field much like the one where I found it.
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Lichen Moth Caterpillar
10mm long | July 8, 2011 | Victorio Siqueroli Park, Uberlandia, Minas Gerais, Brazil
This cryptically colored little caterpillar reminds me of lichen moth larvae I’ve seen closer to home (Family Arctiidae, subfamily Lithosiinae). If so, it’s in the right place!
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Tortricid Moth
8mm long | July 8, 2011 | Victorio Siqueroli Park, Uberlandia, Minas Gerais, Brazil
Whenever I see a moth shaped like this, I assume it’s a tortricid. Probably not a bad guess, considering Tortricidae is one of the largest familes of Lepidoptera.
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Resting Spider
5mm long body | July 8, 2011 | Victorio Siqueroli Park, Uberlandia, Minas Gerais, Brazil
Resting with its legs held together on the edge of a leaf, this spider quickly grew tired of me. After a few shots, it slipped to the underside of the leaf.
Dorsal view
I think this is a crab spider in the family Thomisidae, perhaps a Tmarus species.
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More Ants and Scales
5mm long | July 8, 2011 | Victorio Siqueroli Park, Uberlandia, Minas Gerais, Brazil
Besides the turtle ants, there was one other type of ant crawling around in the same area. They were quite aggressive, often taking a threatening stance with their gaster turned down and under their body. The one above seems to be saying, “Back! This scale is mine”. The scale above, by the way, differs from the ones I posted about earlier.
Forager?
The ants above were fairly active. The one below, however, never moved from the spot I found it. While I assume it’s the same species, it has a slightly different body build. Note, for example, how much wider the head is. Maybe it’s a soldier?
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