Males and females of Lutzomyia anthophora Addis were collected by vacu
um aspiration from woodrat, Neotoma albigula Hartley, and rock squirre
l, Citellus variegatus Bailey, nests along Arivaca Creek in Pima Count
y, Arizona. Additional flies were collected from the same location usi
ng CDC miniature light traps supplemented with CO2. These collections
extend the recorded geographic distribution of this vector of Leishman
ia mexicana Biagi westward by approximate to 724 km and place Lu. anth
ophora in a Sonoran desert habitat.