Photos & Graphics: Fire Ants

Please attribute all images as follows:

Source: The Journal of Allergy and Clinical Immunology.

For more seasonal allergy visuals, visit the National Allergy Bureau's Plant and Pollen Photo Gallery.



 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
 invicta), 1918-1999.






  (left) Single queen fire ant mound at
  street curb.

  (right) Fire ant infestation of
  electrical wiring.





 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.





Close-up of pine tree branches in Winter Close-up of pine tree branches in Winter