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Discothyrea testacea Worker Photos


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6 replies to this topic

#1 Offline Ferox_Formicae - Posted May 20 2021 - 4:26 AM

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My first ever time seeing this species! A single worker was found in a pine needle bed over a red clay-humus mixture at the base of an American sweetgum. Other ant species present were Brachymyrmex depilisNylanderia faisonensis, Crematogaster lineolata, and Aphaenogaster fulva-rudis-texana complex sp. All images can be seen on iNaturalist here. I will continue to search for the colony to make an attempt at keeping these gals, which I know is said to be extremely difficult. I'll try and see what species of arthropods are present in the area as well so I can try and narrow down what exactly it is that they eat, if I can find the colony that is. Anyways, here are some of the photos I took of this tiny, rare ant:

 

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Similar to the relative, Proceratium, starting at gastral segment III, the segments are curled under segment II, likely used to held the carry eggs.

 

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The prominent fused frontal lobes of this species form a sort of crest between the antennal fossae, which are visible in profile due to the fusing of the lobes.

 

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Here she cleans the massive antennal clubs this species is known for.

 

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The minute eye of this ant with its single facet is just scarcely visible here as a tiny speck.


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#2 Offline Kaelwizard - Posted May 20 2021 - 4:32 AM

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That's a neat find! Why are their antennae so large?



#3 Offline Ferox_Formicae - Posted May 20 2021 - 5:11 AM

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That's a neat find! Why are their antennae so large?

I'm not entirely certain, and I don't think anyone knows. One of the many mysteries of these ants.


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Camponotus chromaiodes, Camponotus nearcticus, Stigmatomma pallipesStrumigenys brevisetosaStrumigenys clypeataStrumigenys louisianaeStrumigenys membraniferaStrumigenys reflexaStrumigenys rostrata

 

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#4 Offline gcsnelling - Posted May 20 2021 - 9:26 AM

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Cool find.


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#5 Offline smares - Posted May 20 2021 - 9:55 PM

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It looks so smooth and flawless
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#6 Offline Ferox_Formicae - Posted May 21 2021 - 4:10 AM

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It looks so smooth and flawless

No hairs on these gals, pretty much entirely hairless, hence the smooth, matte appearance.


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Camponotus chromaiodes, Camponotus nearcticus, Stigmatomma pallipesStrumigenys brevisetosaStrumigenys clypeataStrumigenys louisianaeStrumigenys membraniferaStrumigenys reflexaStrumigenys rostrata

 

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#7 Offline Arthroverts - Posted June 4 2021 - 8:30 AM

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Beautiful! That's a really awesome find, best of luck in finding the rest of the colony.

 

Thanks for sharing,

 

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