Jump to content

  • Chat
  •  
  •  



Welcome to Formiculture.com!

This is a website for anyone interested in Myrmecology and all aspects of finding, keeping, and studying ants. The site and forum are free to use, and contain no ads for members. Register now to gain access to all of our features. Once registered and logged in, you will be able to create topics, post replies to existing threads, give reputation points to your fellow members, get your own private messenger, post status updates, manage your profile and so much more. If you already have an account, login here - otherwise create an account for free today!

Photo
* * * * * 1 votes

Pseudomyrmex gracilis

pseudomyrmex pseudomyrmex gracilis elongate twig ant elongate twig ants twig ant twig ants

  • Please log in to reply
2 replies to this topic

#1 Offline Ants_Texas - Posted April 22 2018 - 4:12 PM

Ants_Texas

    Advanced Member

  • Members
  • PipPipPip
  • 384 posts
  • LocationKaty, Texas

Scientific Name:  Pseudomyrmex gracilis

 

Common Names: Elongate twig ants, twig ants, mexican twig ants

 

Distribution:  

Native to: Texas, Mexico, Venezuela, Colombia, Ecuador, Guyana, Suriname, French Guiana, Brazil, Peru, Bolivia, Uruguay, Argentina, Paraguay, Belize, Guatemala, Honduras, El Salvador, Nicaragua, Costa Rica, and Panama. (There are no records in Chile but it is likely to be native there too)

 

Dubious in (Unsure if in): Chihuahua, Sonora, and Sinaloa. (Northeastern Mexico) & West Bengal (Bangladesh)

 

Invasive to: Hawaii, Florida, South Carolina, Mississippi, Alabama, Louisiana, Jamaica, Hispaniola (Haiti/Dominican Republic), Lesser Antilles, & Trinidad and Tobago. Likely to be invasive to Georgia state as well.

 

Indoor Introduced to: California, and United Kingdom.

 

Queen size:  ~11 mm

 

Worker size:  ~9 mm

 

Male size: ~11 mm

 

Natural Habitat: Tight spaces. Twigs, oak galls, rotting wood, extremely rarely inside homes.

 

Circadian Activity: Very diurnal. Rarely are out at night unless they are dealing with prey. Once the colony gets larger, they will start to actively forage during the day and night. 

 

Mating Flight: Mating happens from March - November. Mostly found from May - August.

 

Queen Founding Method: Semi-Claustral

 

Monogyne or Polygyne: Extremely monogyne, they do not tolerate multiple fertile queens in their nest.

 

Average time from egg to worker:  Egg to Larva - ~5 days, Larva to Pupa - ~25 days, Pupa to Worker - ~10 days

 

Recommended Temperature: These ants love heat. Their room is around 73° F, or about 22.7° C. I keep half of their nest at around 80° F, or 26.6° C. Keep in mind that the entire nest should not be heated like that, or moisture will evaporate everywhere.

 

Recommended Humidity: Pseudomyrmex gracilis hate moisture. When keeping them in a Mini-Hearth Type III (Recommended Nest), do not put any water in the water tower, but filling the Nestmate is fine as long as the heat source is not on its side of the nest.

 

Preferred Foods: Offer a constant supply of honey, and always cut up protein other than fruit flies.

 

They eat: Honey, Spiders, Crickets, Fruit flies, and Apples. 

 

Hibernation Details: These are pretty tropical ants, so they do not hibernate. They may slow down brood production during colder months, but foraging and egg laying will not stop.

 

Escape Barrier Methods: Fluon (PTFE). This is the only barrier that I know of that keeps them contained. These ants are escape artists,  so their outworlds always need an air tight lid.

 

Difficulty rating: 8/10. Reasons for this rating:

•  Semi-Claustral queens

  Queens usually almost immediately find a place to found their colony, and usually aren’t wandering

  Very good escape artists (Airtight lidded outworld w/ Fluon REQUIRED)

  Queens are difficult to distinguish from workers

• This species’ stings can be pretty painful.

 

Bite and/or Sting rating: ~5/10. This species bites and stings. They usually bite before following up with a sting. Even if they fall on you, they take a few seconds before they even try to sting you. If you are intentionally aggravating their nest(s), you’re just asking to be stung. Bites don’t really hurt. Stings can be quite painful, but are not on Myrmecia or Paraponera clavata level of pain.

 

Special Care or Interesting Notes:

• These ants have excellent vision, and can detect you from multiple feet away.

• Most likely able to chew through Ytong.

• They hate airflow, if you want to move them create airflow in the undesirable area.

• They are heat lovers, but don’t scorch them alive.

• Keep half of nest heated, and the other half of the nest & outworld at room temperature.

• The outworld needs to be quite large, as they are solo foragers.

• The outworld needs to have Fluon (PTFE) applied, and have an air tight lid. TarheelAnts' "Premium Desert Scene" or The Container Store's "Narrow Stackable Rectangle Clear" both work fantastic. 

• I find the best setup is an airtight outworld connected via tubing to a Mini-Hearth Type III.

• If the colony’s alates fail to fly, the males will die or be eaten, and the queen alates will get their wings ripped off and act as workers or killed. 

 They much prefer dead protein sources, except for fruit flies once the colony is big. Feed fruit flies dead until they get around 20 workers.

 The queen will often be elected as the only replete in the colony, workers like to give her lots of honey/other sweets. This can also make her easily identifiable when the colony starts growing quickly.

 

Additional Links:

http://antwiki.org/wiki/Pseudomyrmex_gracilis

http://www.antmaps.org/?mode=species&species=Pseudomyrmex.gracilis

https://www.antweb.o...is&rank=species


Edited by Ants_Texas, July 29 2018 - 11:05 AM.

My YouTube: https://www.youtube.com/channel/UCK90shiLguOZBECXtwr1M7A

 

Ants n' Texas Adoption Page: http://www.formiculture.com/topic/9373-ants-n-texas-adoption-page-katyamarillo-texas/#entry96923

 

Colonies:

Brachymyrmex patagonicus

Camponotus castaneus

Camponotus decipiens

Camponotus discolor

Camponotus festinatus

Camponotus pennsylvanicus x2

Crematogaster ashmeadi

Crematogaster laeviuscula

Crematogaster missouriensis

Pheidole bicarinata

Pheidole moerens x2

Pseudomyrmex gracilis x2

Solenopsis invicta

Tetramorium bicarinatum

 

Queens: 

Brachymyrmex depilis

Dorymyrmex bureni 

Myrmecocystus mexicanus

Myrmecocystus mimicus

Pheidole bicarinata 

Pheidole obscurithorax 

Pogonomyrmex barbatus x3

Pogonomyrmex rugosus

Solenopsis molesta

Strumigenys rogeri

Tetramorium bicarinatum 

 

 

 

 

 

 

 

 

 


#2 Offline Michca - Posted August 1 2018 - 3:40 PM

Michca

    Newbie

  • Members
  • Pip
  • 1 posts

Hi friend! I just caught a Pseudomyrmex gracilis queen today! And I just happened to have a mini hearth ready to go. I'm hoping to keep her healthy and happy.



#3 Offline Ants_Texas - Posted August 1 2018 - 7:22 PM

Ants_Texas

    Advanced Member

  • Members
  • PipPipPip
  • 384 posts
  • LocationKaty, Texas

Hi friend! I just caught a Pseudomyrmex gracilis queen today! And I just happened to have a mini hearth ready to go. I'm hoping to keep her healthy and happy.

Good luck! Hope this care sheet helped.


My YouTube: https://www.youtube.com/channel/UCK90shiLguOZBECXtwr1M7A

 

Ants n' Texas Adoption Page: http://www.formiculture.com/topic/9373-ants-n-texas-adoption-page-katyamarillo-texas/#entry96923

 

Colonies:

Brachymyrmex patagonicus

Camponotus castaneus

Camponotus decipiens

Camponotus discolor

Camponotus festinatus

Camponotus pennsylvanicus x2

Crematogaster ashmeadi

Crematogaster laeviuscula

Crematogaster missouriensis

Pheidole bicarinata

Pheidole moerens x2

Pseudomyrmex gracilis x2

Solenopsis invicta

Tetramorium bicarinatum

 

Queens: 

Brachymyrmex depilis

Dorymyrmex bureni 

Myrmecocystus mexicanus

Myrmecocystus mimicus

Pheidole bicarinata 

Pheidole obscurithorax 

Pogonomyrmex barbatus x3

Pogonomyrmex rugosus

Solenopsis molesta

Strumigenys rogeri

Tetramorium bicarinatum 

 

 

 

 

 

 

 

 

 






Also tagged with one or more of these keywords: pseudomyrmex, pseudomyrmex gracilis, elongate twig ant, elongate twig ants, twig ant, twig ants

0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users