Solenopsis xyloni

    

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Solenopsis xyloni major worker held in my fingers for scale.
Solenopsis xyloni major worker held in my fingers for scale.
Closeup of head of Solenopsis xyloni major worker.
Closeup of head of Solenopsis xyloni major worker.
Forelius pruinosus worker (left) sprays Solenopsis xyloni worker (right) with noxious toxins. Forelius will often have heaps of Solenopsis xyloni exoskeletons piled up outside of their nest mounds.
Forelius pruinosus worker (left) sprays Solenopsis xyloni worker (right) with noxious toxins. Forelius will often have heaps of Solenopsis xyloni exoskeletons piled up outside of their nest mounds.
Forelius pruinosus worker (left) sprays Solenopsis xyloni worker (right) with noxious toxins. Forelius will often have heaps of Solenopsis xyloni exoskeletons piled up outside of their nest mounds.
Forelius pruinosus worker (left) sprays Solenopsis xyloni worker (right) with noxious toxins. Forelius will often have heaps of Solenopsis xyloni exoskeletons piled up outside of their nest mounds.
Male Solenopsis xyloni on an Agave murpheyi leaf.
Male Solenopsis xyloni on an Agave murpheyi leaf.
Major and minor Solenopsis xyloni workers from the same nest. Even though the minor is dark, almost a black color, you can see that the major is quite reddish.
Major and minor Solenopsis xyloni workers from the same nest. Even though the minor is dark, almost a black color, you can see that the major is quite reddish.
Solenopsis xyloni will often monopolize honeydew secreting insects. This mesquite has honeydew secreting homopterans at the base of its leaves. These Solenopsis xyloni were swarming over the tree, eagerly tending the homopterans.
Solenopsis xyloni will often monopolize honeydew secreting insects. This mesquite has honeydew secreting homopterans at the base of its leaves. These Solenopsis xyloni were swarming over the tree, eagerly tending the homopterans.
This geometrid caterpillar dropped from the mesquite leaflet to avoid the numerous Solenopsis xyloni. A minute or two after I took this photo, an Anna's Hummingbird swooped in and ate the caterpillar - out of the frying pan and into the fire!
This geometrid caterpillar dropped from the mesquite leaflet to avoid the numerous Solenopsis xyloni. A minute or two after I took this photo, an Anna's Hummingbird swooped in and ate the caterpillar - out of the frying pan and into the fire!
The round object on the mesquite leaflet in this picture is a gland that secretes a sugary solution. Ants will flock to these extrafloral nectaries to feed when the glands are active.
The round object on the mesquite leaflet in this picture is a gland that secretes a sugary solution. Ants will flock to these extrafloral nectaries to feed when the glands are active.