Cladistic analysis of the fire ants of the Solenopsis saevissima species‐group (Hymenoptera: Formicidae)

@article{Pitts2005CladisticAO,
  title={Cladistic analysis of the fire ants of the Solenopsis saevissima species‐group (Hymenoptera: Formicidae)},
  author={J. Pitts and J. McHugh and K. Ross},
  journal={Zoologica Scripta},
  year={2005},
  volume={34}
}
Results are presented from a phylogenetic study of the fire ants comprising the Solenopsis saevissima species‐group (Hymenoptera: Formicidae). Six most‐parsimonious trees were identified following a cladistic analysis utilizing 18 taxa and 36 morphological characters derived from three castes and two developmental stages. A strict consensus tree recovered the following relationships: (S. daguerrei ((S. electra, S. pusilignis) (S. saevissima (S. pythia (S. interrupta, S. ‘undescribed species’, S… Expand
Revision of the Fire Ants of the Solenopsis saevissima Species-Group (Hymenoptera: Formicidae)
TLDR
The fire ants of the Solenopsis geminata species-group of Trager (1991) are revised based on the morphology of worker larvae and of adult forms of workers, males, and gynes (winged or dealated members of the queen caste), making the taxonomic information gained from these castes no better than information from the workers. Expand
Molecular phylogeny of fire ants of the Solenopsis saevissima species-group based on mtDNA sequences.
The systematics of South American fire ants (Solenopsis saevissima species-group) has been plagued by difficulties in recognizing species and their relationships on the basis of morphologicalExpand
Comparative Immature Morphology of Brazilian Fire Ants (Hymenoptera: Formicidae: Solenopsis)
TLDR
Mature larvae of S. saevissima presented considerable intraspecific variation in some characters recently proposed to aid fire ant species separation (morphology of head hairs). Expand
Multi-Locus Molecular Phylogeny of Solenopsis (Hymenoptera: Formicidae)
TLDR
A preliminary multi-locus molecular phylogenetic analysis of Solenopsis demonstrates problems with current systematic understanding of the genus, but provides an evolutionary framework upon which to build future research. Expand
Identification of Fire Ants (Hymenoptera: Formicidae) from Northeastern Mexico with Morphology and Molecular Markers
TLDR
This work examined the sequence of the cytochrome oxidase I (COI) mitochondrial gene (mtDNA) as a marker for fire ants collected at several Mexican localities and yielded unique sequences and restriction patterns that allowed distinguishing between S. invicta, S. geminata, and specimens harboring S. xyloni sequences. Expand
High species turnover of the ant genus Solenopsis (Hymenoptera : Formicidae) along an altitudinal gradient in the Ecuadorian Andes, indicated by a combined DNA sequencing and morphological approach
TLDR
The results suggest a high species turnover along the gradient, and point to the use of morphological and DNA barcoding approaches as necessary for differentiating among Solenopsis species. Expand
Molecular characterization of fire ants, Solenopsis spp., from Brazil based on analysis of mtDNA gene cytochrome oxidase I
Abstract Species from the Solenopsis saevissima (Smith) (Hymenoptera: Formicidae) species group are native to South America and have a cosmopolitan distribution because they have been accidentallyExpand
Survey of Solenopsis Fire Ants and Their Parasitoid Flies (Diptera: Phoridae: Pseudacteon) in Central Chile and Central Western Argentina
TLDR
Analysis of mtDNA from the collected flies supports the monophyly of P. obtusus and suggests that the Chilean population is similar to populations in eastern Argentina, while Mitochondrial DNA (mtDNA) indicates that S. gayi is genetically closer to the Argentine fire ants than the North American S. geminata-group. Expand
Genetic analyses reveal cryptic diversity in the native North American fire ants (Hymenoptera: Formicidae: Solenopsis)
TLDR
It is concluded that the recognised North American fire ant species represent evolutionarily independent entities and, moreover, the presumed sister status of the desert fire ants, S. aurea Wheeler and S. amblychila Wheeler is confirmed. Expand
Molecular phylogenetic analysis and morphological reassessments of thief ants identify a new potential case of biological invasions
TLDR
This work inferred a phylogeny of the two species using DNA sequence data from four nuclear genes and one mitochondrial gene sampled from populations in Florida, Guatemala, Hawaii, and Saudi Arabia and indicated that S. abdita is a novel global tramp species which has a far wider distribution than previously thought and has established itself in many new habitats and different geographic realms. Expand
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