Bui. 431, U. S, Dept of Agriculture. 



Plate II. 



Comparison of a Healthy Larva and the Remains of Larv/e Dead of 



Sacbrood. 



"■< :^i??P "' * healthy larva; 6, c, d, e, and /, caps over larviB in first, second, third, fourth and 

 fifth stages of decay, respectively; g, a healthy larva, end vievr; h, i, j, k, and I an end view 

 of the five stages of decay; m, a healthy larva viewed from above; nova and r cor- 

 responding view of the five stages of decay; s and y, healthy larva removed from the 

 cell; i, u, v, w, and z, larval remains in different stages of decay removed from the cell- 

 mo, a larva recently dead of sacbrood vrtth the anterior third removed by the bees- x a 

 scale removed from the cell; xx, larval remains from which a small portion has been 

 removed by bees: j/?/, almost a pupa; 2s, a pupa dead of sacbrood which had only recently 

 transformed. (Original.) ■ """.I '•'=^<="i"j' 



