What creates these small, sand, chimneys on the flow-facing surface of boulders? These were found in Rio Bella Vista, a fast-moving, cold, cascading stream in Las Alturas.
The leaf-cutter, reproductive female caste (new queens – Atta cephalotes) emerge in mass and begin digging new homes!
Parasitoid larvae, probably from a wasp, have emerged from the black wounds of this caterpillar, perhaps a hesperidae butterfly, and pupated.
Check out the trachea (the branching gas exchange organs observed through the skin of the caterpillar) and the punctures from the larval exits!
Found along Sendero Echandi.
A few more images of the tiger beetle (Carabidae, Cicindelinae, Pseudoxycheila tarsalis) commonly found in Las Cruces.
Cristian braves handling it—the serrated jaws pierce his skin. There is a horn extending from the labrum that is also serrated.
A stinky pentatomid that Cristian swatted out of the sky at Las Alturas. The orange-ish fluid it excreted covers Cristian’s hands and was poignant.