Solenopsis invicta, the fire ant, or red imported fire ant (RIFA), is a species of ant native to South America. A member of the genus Solenopsis in the subfamily Myrmicinae, it was described by Swiss entomologist Felix Santschi as a variant of S. saevissima in 1916. Its current specific name invicta was given to the ant in 1972 as a separate species. However, the variant and species were the same ant, and the name was preserved due to its wide use. Though South American in origin, the red imported fire ant has been accidentally introduced in Australia, New Zealand, several Asian and Caribbean countries, Europe and the United States. The red imported fire ant is polymorphic, as workers appear in different shapes and sizes. The ant's colours are red and somewhat yellowish with a brown or black gaster, but males are completely black. Red imported fire ants are dominant in altered areas and live in a wide variety of habitats. They can be found in rainforests, disturbed areas, deserts, grasslands, alongside roads and buildings, and in electrical equipment. Colonies form large mounds constructed from soil with no visible entrances because foraging tunnels are built and workers emerge far away from the nest.

Sequence Statistics

No Sequences16522
No Amino Acids5753247
Min Seq. Length10
Avg. Seq. Length348.217
Max Seq. Length7174
Seq. Length 1σ398.003

Disorder Prediction Statistics

Predictor % Genome Disordered % Genome Disordered in SCOP Domains Avg. % of Seq. Disordered Avg. % of Disordered Regions in SCOP Domains Avg. % of Seq. Disordered and in SCOP Domains
VLXT 31.912 5.127 30.587 21.033 4.778
VSL2b 40.421 5.002 38.190 18.221 4.824
PrDOS 41.840 4.124 41.748 14.131 3.937
PV2 38.140 5.590 44.651 19.442 6.374
IUPred-S 19.422 1.006 19.485 9.960 1.176
IUPred-L 22.752 1.215 26.302 14.310 1.606
Espritz-N 27.870 2.852 25.466 15.892 2.495
Espritz-X 18.294 0.766 19.904 8.512 1.050
Espritz-D 9.196 0.731 49.539 9.600 5.859


% Amino Acids with SCOP Assignment % Sequences with SCOP Assignment No of Domains No of Superfamilies No of Families Avg. Family Size Avg. Domain Length Domain Pairs Unique Domain Architectures
35 46 12128 929 762 13.1 348 963 2979

Discussion about Solenopsis invicta v.2.2.3

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