EXPI.ANATION o^ Pi, ATE 1 7- 



This plate illustrates the changes in the coloration exhibited by the larvae of several 

 species of Leptinotarsa during their ontogeny. 



Figs. I, 2 and 3, L. undedmlineata Stal. From Tierra Blanca, Vera Cruz. 



Figs. 4, 5, and 6, L. diversa (n. sp.). From Guadalajara, Jalisco, Mexico. 



Figs. 7, 8, and 9, L. signaiicollis Stal. From Cueruavaca, Morelos, Mexico. 



Figs. 10, II, and 12, L. muliitcsniata Stal. From Guadalupe, Federal District, 

 Mexico. 



Figs. 13, 14, and 15, L. oblongata (n. sp.). From Cuernavaca, Morelos, Mexico^ 



Figs. 16, 17, and 18, L. rubicunda (n. sp.). From Toluca, Mexico, Mex. 



Figs. 19, 20, and 21, L, decemlineataS2ij. From Chicago, Illinois. 



Figs. 22, 23, and 24, L.junda Guer. From Experiment, Georgia. 



Figs. 25, 26, and 27, L. haldemani Stal. From Cuernavaca, Morelos, Mexico. 



Figs. 28, 29, and 30. L. dileda Stal. From Cuernavaca, Morelos, Mexico. 



Figs. 31, 32, and 33, L. violescens Suffr. From Orizaba, Vera Cruz. 



Figs. 34, 35, and 36, L. rubiginosa Rogers. From Santa F6, Federal District, 

 Mexico. 



