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THE CODLING MOTH. 



Carpocctpsa pomonella Linn. 



Four enlarged models illustrating the life history of this insect 

 which is the cause of the "wormy apples." The damage from it in 

 this country is estimated at $11,000,000 annually. 



Models are exhibited of the larva and of the adult moth; and also 

 an enlarged section of & piece of hark, cut so as to show a cocoon and 

 pupa of the codling moth beneath it, and an enlarged section of 

 "wormy" apple showing egg, young, and mature larva and their work. 



THE MEXICAN COTTON BOLL WEEVIL. 



Anthonomus grandis Boh. 

 Enlarged model. This insect is a native of Cuba and Mexico; 

 upwards of ten years ago the weevils crossed the Rio Grande near 

 Brownsville and have now spread over nearly the entire cotton belt of 

 Texas. Its rapid extension, great destructiyeness, and the unusual 

 difficulties in the way of its control have caused grave fears for the 

 future of the cotton industry in the United States. The Federal Gov- 

 ernment has this year appropriated $250,000 for combating this insect. 



THE HONEY BEE. 



Apis mellifera Linn. 

 Enlarged models, reproducing the insect in six different forms — 

 queen, male, wax-worker, worker, bee with propolis, and the bee with 

 pollen. In these are shown the external and internal characters which 

 distinguish each type. Also a model of a comb in the same propor- 

 tion, in which are seen the ceils for honey, for pollen, and for the eggs 

 to produce queens, drones, and workers, with eggs, larvae, and pupae 

 in different stages of development. (After Auzoux.) 



THE EUROPEAN COCKCHAFER. 



Melolontha vulgaris Fab. 

 Model of the perfect insect enlarged twelve times, showing the 

 muscles, nerves, trachea, and viscera, each model separable into as 

 many pieces as there are organs. More than 600 detailed objects are 

 shown, each indicated by a corresponding number. 



FLUTED SCALE. 



leery a purchasi Mask. 



Model in wax of a twig of orange infested with the fluted scale 

 {Icerya purchasi) copied directly from nature, the actual scales being 

 transferred to the model plant. Illustrates the characteristic appear- 

 ance of the infested plant. 



Model of Noninfested Orange. — The model in wax contrasts with 

 the one representing the characteristic appearance of infested plant. 



Illustrations from the publications of the Division of Entomology, 

 representing the different stages of the fluted scale and its principal 

 enemies. 



