Taxonomic History (provided by Barry Bolton, 2019)
Distribution: Geographic regions
(According to curated Geolocale/Taxon lists): Americas: United States Biogeographic regions
(According to curated Bioregion/Taxon lists): Nearctic
Central and southern California. Endemic.
This rarely collected ant is known from valley oak (Quercus lobata) riparian woodland in the Central Valley and from adjacent foothill localities (oak woodland; chaparral; grassland). It is presumed to be a specialist, subterranean predator on spider eggs. Alates have been collected in April and May.
Worker: standing pilosity lacking on scape and legs; scape relatively long (SL/HL 0.76-0.80); eye vestigial, reduced to a fleck of dark pigment (no distinct ommatidium); petiole low and broad, with anterior and posterior faces converging on a rounded summit; length of abdominal sternite 4 (excluding the presternite) about 0.4 times that of the corresponding tergite.
Snelling (1967); Ward (1988).
Taxonomic Treatment (provided by Plazi)
Specimen Habitat Summary
Found most commonly in these habitats: 3 times found in riparian woodland, 2 times found in oak woodland, 1 times found in serpentine grassland, 1 times found in in soil, 1 times found in oak savanna, 1 times found in open grassland.
Found most commonly in these microhabitats: 2 times sifted litter, 1 times worker under stone, 1 times under stone, 1 times under log, 1 times under large rock, 1 times sifted litter (leaf mold, rottenn wood).
Collected most commonly using these methods: 1 times hand collecting, 1 times midden, 1 times search.
Elevations: collected from 15 - 1050 meters, 411 meters average
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