● Fernley [Lyon Co], NV USA [el. 1271 m / 4171 ft] view location in Google Maps »
● 6/23/10 6:34AM partly cloudy, air temp: 17°C / 62°F
[IMAGE 4 of 4] I watched as M. lariversi workers brought up loads of excavated soil particles from the nest interior. Here, a worker is imaged just after releasing some gravel. This material (the byproduct of tunnel excavation in the nest interior), is dumped outside the nest entrance, forming the small crater-like nest structures typical of this species.