Posted to verify genus & possibly species.
Posted to extend BugGuide map range for genus into Nevada.

Characters pictured mentioned in: Ants of North America--A Guide to the Genera (1).
Head
-- Ocelli nearly always absent.
-- 11 segmented antennae.
-- Viewed from front, antennal sockets covered at least in part by frontal lobes.
-- Antennal sockets positioned near the posterior border of the clypeus.
Thorax
-- Prothorax and mesothorax fused.
-- Sculpture of side of meso- and meta- thorax (horizontal lines).
Abdomen
-- Pilosity of dorsal abdomen with appressed setae visible.
-- Pilosity of side of abdomen with long setae visible.
-- Waist with 2 segments, flattened and lacking dorsal nodes.
-- Abdomen capable of flexing upwards and over dorsal surface of body.

Study: GBBL MeSa, Sample = 398.143.4.
Collector = Z.H. Marion & M. L. Forister, Univ. of NV, Reno.