Please attribute all images as follows:
Source: The Journal of Allergy and Clinical Immunology.
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Solenopsis invicta worker ants and
queen. Arranged in a circle are
majors (the largest workers), media
(medium-sized workers) and minors
(the smallest workers). Minors
comprise the majority of worker
ants in a colony. A queen is
displayed to the right.
United States range expansion of
imported fire ants (Solenopsis
(left) Single queen fire ant mound at
(right) Fire ant infestation of
A. Stinging fire ant.
B. Wheal-and-flare reactions to
fire ant venom, five minutes
after multiple fire ant stings.
C. Sterile pustule 24 hours after
fire ant sting.
D. Cutaneous late-phase allergic reactions 24 hours
after fire ant sting. Excoriated sterile pustule in the center of lesion.