Morphological anomalies in two Lutzomyia (Psathyromyia) shannoni (Diptera: Psychodidae: Phlebotominae) specimens collected from Fort Rucker, Alabama, and Fort Campbell, Kentucky

David A. Florin, Phillip Lawyer, Edgar Rowton, George Schultz, Richard Wilkerson, Stephen J. Davies, Robert Lipnick, Lisa Keep