Ladybug hypersensitivity: report of a case and review of literature.

For years, allergists have known that inhalant allergens arise from insects such as flies, beetles, moths, cockroaches, and mites. Now, it is becoming evident that the Asian ladybeetle Harmonia axyridis possibly should be added to this list. Several cases have been reported recently in the literature describing patients suffering from allergic respiratory symptoms including rhinitis, conjunctivitis, and asthma related to exposure to ladybugs.