68 E. B. Williamson 



PLATE I 



Wing photographs by Miss Mina L. Winslow. 



Figure I, Triacanthagyna seplbna, male, Pahna Sola, Venezuela, March 5, 1920; 

 Figure 2. T. ditzlcn. male, Puerto Berrio, Colomliia, January 31, IQI?; Figure 3, T. 

 caribbea, male, Santa Marta, Colombia, December 14, 1916; Figure 4, Gynacantha 

 laficcps, male, Minas Geraes, Brazil, 



