App, B.A. 1938. EUXESTA STIGMATIAS LOEW, AN OTITID FLY INFESTING EAR CORN IN PUERTO RICO. The Journal of Agriculture of the University of Puerto Rico. 22, 2 (Apr. 1938), 181–187. DOI:https://doi.org/10.46429/jaupr.v22i2.12910.