Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada

Genus Linepithema

Small ant grooming - Linepithema humile - female Ant Drone? - Linepithema humile Wasp - Linepithema humile hymenopteran? from strawberry field - Linepithema humile Another Argentine ant? - Linepithema humile - female Ant ID request - Linepithema humile Male, Argentine Ant? - Linepithema humile - male Linepithema humile
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Hexapoda (Hexapods)
Class Insecta (Insects)
Order Hymenoptera (Ants, Bees, Wasps and Sawflies)
No Taxon (Aculeata - Ants, Bees and Stinging Wasps)
Superfamily Formicoidea (Ants)
Family Formicidae (Ants)
Subfamily Dolichoderinae (Odorous Ants)
Tribe Leptomyrmecini
Genus Linepithema
Explanation of Names
Greek linon (λινον)- "flax" + epithema (επιθημα)- "covering"
Numbers
2 species in North America [L. humile; L. iniquum] (nearctica.com- endings corrected)
Size
workers (of L. humile) 2.2-2.6 mm
Identification
single abdominal pedicel (the petiole); 12-segmented antenna without club; distinct promesonotal suture; strong constriction between the mesonotum and propodeum; lack a sting or acidopore, but have a transverse slit-shaped cloacal opening; soft flexible integument
[description adapted from Mississippi State U. - see Internet References below]
Range
mostly neotropical; one accidentally introduced species (L. humile, the Argentine Ant) has spread across southern United States (from North Carolina to Florida, west through the gulf states to the coast of California)
Internet References
live adult images of Linepithema species (Alex Wild, myrmecos.net)
preserved adult images of L. humile at high magnification (Mississippi State U.)