Wolcott, George N., and Luis F. Martorell. “TWO INSECTS NEW TO PUERTO RICO: THE LYCID BEETLE, THONALMUS CHEVROLATI BOURGEOIS, AND THE EPHYDRID FLY, EPHYDRA GRACILIS PACKARD”. The Journal of Agriculture of the University of Puerto Rico, vol. 21, no. 4, Oct. 1937, pp. 535-8, doi:10.46429/jaupr.v21i4.14318.