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Austin, TX (2nd ID). May 22, 2016

austin queen id

Best Answer dspdrew , May 22 2016 - 9:29 PM

Solenopsis invicta.

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#1 Offline Bryansant - Posted May 22 2016 - 7:28 PM

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1. Location of collection: Austin, Texas, on a sidewalk of a suburban apartment complex in north Austin.
2. Date of collection: April 28, 2016, late afternoon, around 5 pm.
3. Habitat of collection: Suburban sidewalk. There are a lot of live oak, red oak, Chinese elm, grass lawns, and other residential developer landscaping around.
4. Length: 9-10 mm.
5. Coloration, hue, pattern and texture: Again, wish I had a better camera here. To the naked eye she's dark brown with an almost black abdomen (see first photo); but, lit up with a flashlight she seems very reddish brown (see other photos). She's shiny and has a few fine hairs on her abdomen and legs.
6. Distinguishing characteristics: Wish I had better resolution but the photos will have to suffice. No spine on the thorax, a pointy petiole, and blunt postpetiole.
7. Anything else distinctive: Nothing distinctive per se. When I remove the darkness shade from the tube she becomes quite frenetic (pardon the anthropomorphisation) stumbling around, moving brood and dropping them everywhere, and making photos difficult. Some of the brood have pupated but no cocoon - naked pupae? I mention this as it seemed to be a clinching factor in another post, though I've read elsewhere that test tube babies are sometimes naked as cocooning requires a substrate to start?
8. Nest description: Unknown - newly mated, wandering queen.

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Edited by Bryansant, May 22 2016 - 7:28 PM.


#2 Offline dspdrew - Posted May 22 2016 - 9:29 PM   Best Answer

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Solenopsis invicta.



#3 Offline Bryansant - Posted May 23 2016 - 8:31 AM

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Thank you Drew for the 2nd ID! Funny, I was convinced that one of my other queens was Solenopsis invicta, but the other is a fair bit larger and has cocooned pupae. Will investigate..

#4 Offline James C. Trager - Posted February 9 2017 - 5:19 AM

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This is one of the the scrawny queens that often fly in the winter months. their only hope of survival is to be adopted by another (queenless?) colony. They don't have enough fat stores to survive colony foundation alone. The situation is well-described in Tschinkel's big "Fire Ants" book. 



#5 Offline James C. Trager - Posted February 9 2017 - 5:21 AM

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A scrawny winter-flying queen. They can't found a colony alone for their lack of fat storage, though may be able to with human assistance. Otherwise, they have be adopted by an existing (queenless?) fire ant colony. 


Edited by James C. Trager, February 9 2017 - 5:22 AM.


#6 Offline Alabama Anter - Posted February 9 2017 - 6:20 AM

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This is one of the the scrawny queens that often fly in the winter months. their only hope of survival is to be adopted by another (queenless?) colony. They don't have enough fat stores to survive colony foundation alone. The situation is well-described in Tschinkel's big "Fire Ants" book. 

I've actually read that book.


YJK


#7 Offline dspdrew - Posted February 9 2017 - 7:43 AM

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  • LocationSanta Ana, CA

This is one of the the scrawny queens that often fly in the winter months. their only hope of survival is to be adopted by another (queenless?) colony. They don't have enough fat stores to survive colony foundation alone. The situation is well-described in Tschinkel's big "Fire Ants" book. 

 

This queen was found in April. What species would "one of the the scrawny queens" be?







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