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Types Nat. Mus. Nat. Hist. U.S.
Diagnosis A typical member of the lamiaHNS group: the major has a phragmotic head, with the anterior portion incorporating the clypeus and mandibles flattened (truncated), and deep antennal scrobes. This species is easily distinguished from the other members of the lamiaHNS group ( lamiaHNS, pelorHNS, trunculaHNS) by the shorter head of the major and the pattern of carinulae on its head: limited to dense longitudinal rows on the frontal lobes and frontal triangle and transverse rows on the lateral wings of the clypeus. Other differences in body form and sculpturing are as illustrated. The queen is also phragmotic.
Measurements (mm) Major (Rio Porce, Colombia): HW 1.08, HL 1.20, SL 0.54, EL 0.14, PW 0.60. Minor (Rio Porce, Colombia): HW 0.52, HL 0.54, SL 0.52, EL 0.06, PW 0.32.
color Major: mostly light reddish brown; appendages, the truncated front of the head, and a narrow horizontal strip posterior to the eyes dark yellow.
Minor: body and scapes medium reddish brown, other appendages yellowish brown.
Range Known only from series collected in Rondonia, Brazil, Rio Porce, Colombia, and Cuzco Amazonico, Madre de Dios, Peru.
biology The Peruvian colony was collected in clay soil at the base of a tree in terra firme rainforest. The nest was 12 cm deep and contained a single queen, five majors, and about 200 minors. The majors and minors in this series are a nearly uniform dark yellow to amber color.
Figure Upper: major. Lower: minor. COLOMBIA: Rio Porce, near Medellin, 1020 m (Neal A. Weber). (Type locality: RondoniaMamore railway track, Km 306, Rondonia, Brazil.) Scale bars = 1 mm.
Found most commonly in these habitats: 47 times found in mature wet forest, 48 times found in 2º wet forest, 34 times found in tropical wet forest, 19 times found in tropical rainforest, 20 times found in tropical moist forest, 15 times found in 2º lowland rainforest, 14 times found in montane wet forest, 15 times found in lowland wet forest, 8 times found in 2º lowland tropical rainforest, 7 times found in mesophil forest, ...
Collected most commonly using these methods or in the following microhabitats: 131 times miniWinkler, 59 times Baiting, 41 times MaxiWinkler, 11 times Winkler, 2 times search, 6 times Berlese, 1 times bait, 1 times Night MiniWinkler
Elevations: collected from 50 - 1200 meters, 344 meters average