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Camponotus sp. ? - Black queen w/ red legs, black workers

camponotus ant id id chromiodes pennsylvanicus

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#1 Offline SkallYeen - Posted February 5 2021 - 11:51 AM

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I have a small Camponotus colony. The queen was sold to me with brood as Camponotus chromaiodes, and her appearance fits the description, but she's since had a couple dozen workers and they're black with gold setae, when C. chromaiodes workers are supposed to be red. But the queen still has red tints to her legs and the bottom of her thorax & abdomen, which C. pennsylvanicus queens apparently don't have. What species have I got?
(For reference this queen was sold by Tarheel Ants, so would have been harvested in North Carolina)

Here's a picture of the colony: 
IMG_20210205_143325.jpg

But because my camera is awful at capturing the aforementioned traits of the ants, here's some pictures I found online that look nearly identical to my ants:
The queen:
YKURLQARXQ3RSQS090R0W0K0P0CR3KFQ3KOQ80Q0
and the workers:
350px-Camponotus_pennsylvanicus%2C_Harva
Sourced in North Carolina. I also found an identical queen myself last year by a rotting stump in a wooded area, but she was injured and didn't survive. She was nearby a black-workered colony having its nuptial flight so she may have come from that colony.

Anyone know what this species is? Is it just a color variation of C. pennsylvanicus I didn't know about, or something similar?


Edited by SkallYeen, February 5 2021 - 11:58 AM.

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#2 Offline TennesseeAnts - Posted February 5 2021 - 11:56 AM

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Based on your location and description, you most certainly have Camponotus chromaiodes, but rather the dark form. Those pictures you found, however, are Camponotus herculeanus and C. pennsylvanicus respectively. If you'd like, check out my journal (in signature) so you can see what I've done with my past and present colonies, and how they thrived.

Edit: Since you seem to know a bit about ant taxonomy, I will add that C. chromaiodes is a member of a small species group containing C. pennsylvanicus, C. herculeanus, C. modoc, C. americanus and C. chromaiodes. All have golden setae, and for the most part are only differentiated by geographic distribution (C. modoc, C. herculeanus in the West, C. pennsylvanicus, C. chromaiodes in the East). C. chromaiodes and C. pennsylvanicus are physically identical, and are only separated by color, with C. chromaiodes always having a red first gastric tergite, and C. pennsylvanicus having a fully black abdomen, with occasionally red legs, though rare. C. chromaiodes comes in two main color forms; a dark form with red only on the legs, a portion of the thorax and first gastric tergite (first pic below), and a light form with deep red markings on the bottom half of the mesosoma and on the first (and occasionally second) gastric tergite (second pic below)

My current colony has around 600 workers, living on a diet of crickets, superworms and mealworms with pieces of apple, some honey and sugar water, living in a THA Fortress, homemade grout nest and THA Discus all connected together, in case you don't want to read through all of it.

C. chromaiodes_1.jpg

WP_20201226_079 1.jpg

Second edit: Here's a paper on it, though it does omit the existence of a dark-form C. chromaiodes: Camponotus chromaiodes - AntWiki

Edited by TennesseeAnts, June 17 2022 - 8:43 PM.

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#3 Offline Idontexist - Posted June 17 2022 - 4:28 PM

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This is camponotus modoc

#4 Offline ColAnt735 - Posted June 17 2022 - 5:05 PM

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What? This is Camponotus chromaiodes please stop resurrecting old threads that are already answered.
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"If an ant carries an object a hundred times it's weight,you can carry burdens many times your size.


#5 Offline TennesseeAnts - Posted June 17 2022 - 8:45 PM

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Actually, thank you for bringing my attention to this thread. I realized a minor error in my above post, where I failed to acknowledge C. americanus as a member of the species-complex.
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#6 Offline Antkeeper01 - Posted June 19 2022 - 5:20 AM

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This is camponotus modoc

:l


1X Pogonomyrmex occidentalis 40-50 Workers

1X Solenopsis molesta 10 Workers (mono)

Ants I Want: Crematogaster sp, Camponotus Sp., Ponera Pennsylvanica, Mymercocystus sp.

 

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Also tagged with one or more of these keywords: camponotus, ant id, id, chromiodes, pennsylvanicus

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