Paratrachymyrmex

Paratrachymyrmex
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Insecta
Order:	Hymenoptera
Family:	Formicidae
Subfamily:	Myrmicinae
Tribe:	Attini
Genus:	Paratrachymyrmex Solomon, Rabeling, Sosa-Calvo & Schultz, 2019
Type species
Atta intermedia, now Paratrachymyrmex intermedius
Diversity
9 species (Species Checklist, Species by Country)

Evolutionary Relationships

Neoattina Cyatta (1 species), Kalathomyrmex (1 species) Mycetarotes   (4 species) Mycetosoritis   (2 species) Cyphomyrmex   (23 species) Mycetophylax   (21 species) Mycetagroicus   (4 species) Mycetomoellerius   (30 species) Sericomyrmex   (11 species) Xerolitor   (1 species) Paratrachymyrmex   (9 species) Trachymyrmex   (9 species) Amoimyrmex   (3 species) Acromyrmex   (55 species) Atta   (20 species)

Based on Ward et al. (2014), Blaimer et al. (2018), Li et al. (2018) and Cristiano et al. (2020).

At a Glance

• Fungus Grower

 

Identification

See images of species within this genus

 

Biology

Association with Other Organisms

All Associate Records for Genus

Explore Associate Data: All, Drilldown

Click here to show/hide associate data.

Taxon	Relationship	Associate Type	Associate Taxon	Associate Relationship	Locality	Source	Notes
Paratrachymyrmex bugnioni	host	ant	Megalomyrmex wettereri	xenobiont		Brandão (2003)

Morphology

Worker Morphology

• Antennal segment count: 11
• Antennal club: gradual-3 weak
• Palp formula: 4,2
• Total dental count: 8-12
• Spur formula: 0,0
• Eyes: present
• Scrobes: weak
• Caste: polymorphic
• Sting: present

Male Morphology

 • Antennal segment count 13 • Antennal club gradual-4 weak • Palp formula 4,2 • Total dental count 3-7 • Spur formula 0,0

Karyotype

Genus Uncertain

The following karyotypes were described as belonging to Trachymyrmex but lacked species-level identifications. As a result of the taxonomic changes proposed by Solomon et al. (2019) the generic placement of these specimens becomes uncertain, but they are likely to belong to either Mycetomoellerius or Paratrachymyrmex rather than Trachymyrmex (based on geographic distribution).

• As Trachymyrmex sp.1: n = 6, 2n = 12, karyotype = 12M (Panama) (Murakami et al., 1998).
• As Trachymyrmex sp.2: 2n = 18, karyotype = 18M (Panama) (Murakami et al., 1998).
• As Trachymyrmex: 2n = 22, karyotype = 18M+4SM (Brazil) (Barros et al., 2013).

Nomenclature

The following information is derived from Barry Bolton's Online Catalogue of the Ants of the World.

• PARATRACHYMYRMEX [Myrmicinae: Attini]
  • Paratrachymyrmex Solomon, Rabeling, Sosa-Calvo & Schultz, 2019: 952. Type-species: Atta (Trachymyrmex) intermedia, by original designation.

References

• Solomon, S.E., Rabeling, C., Sosa-Calvo, J., Lopes, C.T., Rodrigues, A., Vasconcelos, H.L., Bacci Jr, M., Mueller, U.G., Schultz, T.R. 2019. The molecular phylogenetics of Trachymyrmex Forel ants and their fungal cultivars provide insights into the origin and coevolutionary history of ‘higher-attine’ ant agriculture. Systematic Entomology 44: 939-956 (doi:10.1111/syen.12370).