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Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

National Moth Week was July 23-31, 2022! See moth submissions.

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

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Genus Linepithema

Argentine Ant for California in June - Linepithema humile Argentine Ant? - Linepithema humile Argentine ant, right? - Linepithema humile Argentine Ants - Linepithema humile Ant Drone? - Linepithema humile Unwilling Ant Farm - Linepithema humile - female Unknown ant - Linepithema humile Formicidae - 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.)