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Linepithema humile. 1. Worker; 2. Workers with drone; 3. Queen. Welgemoed, Cape Town, South Africa; 19 April 2016. Photos and collection by Philip Herbst.
Global tramp species native to South America and introduced across continental systems and island systems.
Flanders: only indoors [needs reference].
Diagnosis among workers of introduced and commonly intercepted ants in the United States. Antenna 12-segmented. Antennal scape length less than 1.5x head length. Eyes medium to large (greater than 5 facets); do not break outline of head; placed distinctly below midline of face. Antennal sockets and posterior clypeal margin separated by a distance less than the minimum width of antennal scape. Anterior clypeal margin variously produced, but never with one median and two lateral rounded projections. Mandible lacking distinct basal angle. Profile of mesosomal dorsum with two distinct convexities. Dorsum of mesosoma lacking a deep and broad concavity; lacking erect hairs. Promesonotum separated from propodeum by metanotal groove. Propodeum with dorsal surface not distinctly shorter than posterior face; angular, with flat to weakly convex dorsal and posterior faces. Propodeum and petiolar node both lacking a pair of short teeth. Mesopleura and metapleural bulla covered with dense pubescence. Propodeal spiracle bordering posterior margin of propodeal profile. Waist 1-segmented. Petiole upright and not appearing flattened. Gaster armed with ventral slit. Erect hairs lacking from cephalic dorsum (above eye level), pronotum, and gastral tergites 1 and 2. Dull, not shining, and color uniformly light to dark brown. Measurements: head length (HL) 0.56–0.93 mm, head width (HW) 0.53–0.71 mm.
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|Linepithema humile||Wild, A. L., 2007, A catalogue of the ants of Paraguay (Hymenoptera: Formicidae)., Zootaxa 1622, pp. 1-55: 25, (download)||25||21367|
|Linepithema humile||Wild, A. L., 2004, Taxonomy and distribution of the Argentine ant, Linepithema humile (Hymenoptera: Formicidae)., Annals of the Entomological Society of America 97, pp. 1204-1215: 1207-1229, (download)||1207-1229||20351|
|Linepithema humile||Ward, P. S., 2005, A synoptic review of the ants of California (Hymenoptera: Formicidae)., Zootaxa 936, pp. 1-68: -1, (download)||-1||21008|
|Linepithema humile||Wild, A. L., 2007, Taxonomic revision of the ant genus Linepithema (Hymenoptera: Formicidae)., University of California Publications in Entomology 126, pp. 1-159: 61-65, (download)||61-65||21156||GoogleMaps|
|Linepithema humile||Espadaler, X., 2007, The ants of El Hierro (Canary Islands)., Advances in ant systematics (Hymenoptera: Formicidae): Homage to E. O. Wilson - 50 years of contributions., Memoirs of the American Entomological Institute, 80, pp. 113-127: 117, (download)||117||21278|
Found most commonly in these habitats: 65 times found in private residence, 20 times found in on swimming pool surface, 18 times found in backyard, 13 times found in house, 21 times found in in potted plant, 19 times found in in field at edge of parking area, 0 times found in at edge of parking lot and mowed grassy area, on ground, 15 times found in nest in Dolomite Glade, 5 times found in grassland, 0 times found in at base of Pinus sp., near cabin, ...
Found most commonly in these microhabitats: 12 times sidewalk, 7 times ground nest, 11 times Nido bajo piedra, 7 times under stone, 9 times Foraging, 7 times kitchen, 4 times found foraging, 8 times Forrajeando, 6 times ground forager(s), 1 times ex ?Atriplex spinosa, 3 times under rotting log, ...
Collected most commonly using these methods: 523 times Bay Area Ant Survey (BAAS), 19 times Lindgren funnel baited with Typosan and alpha pinene, 54 times Hand, 35 times Lindgren funnel baited with Typosan, 25 times Lindgren funnel, 12 times search, 11 times direct collection, 8 times sweeping, 7 times cookie bait, 4 times hand collecting, 5 times malaise trap, ...
Elevations: collected from 1 - 2732 meters, 220 meters average