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Costa Rica: Atlantic lowlands (La Selva).
Inhabits lowland rainforest; recruits to baits on forest floor.
Types Mus. Comp. Zool. Harvard.
Major: entire body covered by long, very dense, suberect to erect hairs; promesonotum smoothly semicircular in dorsal-oblique view; posterior two-thirds of dorsal head surface rugoreticulate; frontal lobes and all of promesonotum entirely smooth and shiny.
Minor: occiput narrowed, with nuchal collar; all of head smooth and shiny except for circular carinulae around antennal fossae; all of promesonotal border and all of waist smooth and shiny; propodeal spines short and erect.
Measurements (mm) Holotype major: HW 1.86, HL 2.22, SL 0.88, EL 0.22, PW 0.96.
Paratype minor: HW 0.60, HL 0.64, SL 0.70, EL 0.14, PW 0.38.
Color Major: posterior three-fourths of head capsule dark reddish brown, anterior one-fourth medium reddish brown; mesosoma and waist dark to medium reddish brown; gaster plain dark reddish brown; appendages light reddish brown.
Minor: posterior four-fifths of head capsule dark brown, anterior one-fifth light brown; mesosoma and waist light brown; gaster dark brown; appendages yellowish brown.
range Known only from the type locality.
Biology Nests in clayey soil of mature forest trail (E. O. Wilson); observed foraging at night on grassy section of trail (Longino 1997). The type colony was from a soil nest in the middle of a forest trail, surrounded by excavated earth.
Figure Upper: holotype, major. Lower: paratype, minor. COSTA RICA: La Selva Biological Station, near Puerto Viejo, Heredia (E. O. Wilson). Scale bars = 1 mm.
Found most commonly in these habitats: 1 times found in lowland wet forest, 1 times found in Mature lowland rainforest, 2 times found in mature wet forest, 1 times found in Puesto4,243g,10m., 1 times found in CCL 550, 1 times found in tropical rainforest, some big trees, primary forest, 1 times found in CCL 250, 1 times found in lowland rainforest.
Found most commonly in these microhabitats: 1 times nest in chambers in clay bank, 2 times ex sifted leaf litter, 1 times Nest in clay soil along SSO trail, 1 times Primary forest, 1 times at bait, 1 times sifted litter, 1 times Primary, strays on sparse grassy center of times night collecting near blacklight #3. #3407-s.
Collected most commonly using these methods: 3 times search, 8 times baiting, 2 times Lure/Bait, 2 times miniWinkler, 1 times Unknown, 1 times Berlese, 1 times Winkler.
Elevations: collected from 50 - 500 meters, 137 meters average