K. TODA DEL. 



JULIUS BIEN, N. Y. 



Colored Photographs of Living Material of some Species used in Different 



Experiments. 



Leptinotarsa undecimlineata. Male. X 2. 

 Egg cluster of L. undecimlineata. X 1.5. 

 Full-grown larvse, L. undecimlineata. 



X 1.5. 

 L. panamensis n. sp. 4o, male; 4b, 



female. 

 L. guatemalensis n. sp. Female. X 1.5. 

 Egg cluster of L. panamensis. X 4.5. 



7, 8. Larvse of L. panamensis. 8a, full- 

 grown, 3d stage; 86, 2d stage. X 2. 



9. L. diversa n. sp. Male and female 

 copulating. X 2. 



10. L. diversa. Egg cluister and first-stage 



larvse. X 1.25. 



11. L. diversa. Larvse; (o) 2d stage; (b) 



3d stage, fully grown. X 1.5. 



