242 



THE STUDY OF INSECTS. 



seriously reduce the amount of the crop. The pupa state is 

 passed within the cluster of tied leaves or within a tube 

 formed by rolling up one side of a leaf, and lasts about ten 

 days. The moth expands about three fifths of an inch ; it is 

 of a dark ashen gray, with a large, irregular, whitish band on 

 the fore wing. 



Fig. 289. — Ret in in lomstockiana, larva, pupa, adult, and work. (From the Author's 



Report for 1879.) 



The Pitch-pine Retinia, Rctinia comstockiana (Re-tin'i-a 

 com-stock-i-a'na). — This species (Fig. 289) illustrates well 



