526 INSECT PESTS OF FARM, GARDEN AND ORCHARD 



night. The eggs arc laid on the foliage, usually singly, and the 

 larvae hatch in a few days. They eat ravenously, and will consume 

 an enormous number of leaves within a few days. Usually the 



Fro. 377. The achemon sphinx (Pholus achemon Dru.): a, moth; b, egg; c, 

 young larva; d, mature larva; e, pupa; /, parasitized larva all natural 

 size. (After Marlatt, U. S. Dept. Agr.) 



coloration of the larvae changes more or less as they grow, so 

 that when full grown they are different from the younger stages. 

 When there are two generations, the second generation of larvae 



