. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. THE LKGUME POD MOTH. 93. covered, measured mm. in leii<:;th and was found just inside the j)()d at the terminus of a burrow which led from just in front of the e«;g through the calyx and pod wall. The hole through which th(! larva emerged from the eggsliell was terminal, round, and very neatly cut. A few days later two eggs were found on the calcyces of field peas; tiiese were brought into the irisectaiy but failed to hatch. During late Jidy and early August, 1911, larvae in all stages of development, from
. Bulletin. Insects; Insect pests; Entomology; Insects; Insect pests; Entomology. THE LKGUME POD MOTH. 93. covered, measured mm. in leii<:;th and was found just inside the j)()d at the terminus of a burrow which led from just in front of the e«;g through the calyx and pod wall. The hole through which th(! larva emerged from the eggsliell was terminal, round, and very neatly cut. A few days later two eggs were found on the calcyces of field peas; tiiese were brought into the irisectaiy but failed to hatch. During late Jidy and early August, 1911, larvae in all stages of development, from very small specimens, evidently just hatched, to those which were mature and spinning cocoons, were found in both the pods of field peas and lupines. The larvae on first emerging are pale green or cream colored, the pronotal plate and head being entirely black or brown; with the first molt the pronotal plate assumes the characteristic pattern described elsewhere in this paper, but the body does not assume the rosy tint as described until nearly mature. The larvae feed for about three weeks, only partly consuming the peas, as is seen in figure 32, destroying them as seed, besides greatly reducing their weight as stock feed. The pod always contains a mass of frass held to- gether by a loosely constructed web. The larva will leave one pod and enter another if the food supply is Fig. 32.—The legume po( exliausted, or if for any other reason the pod becomes uninhabitable. When mature, if the peas are still unharvested in the field, it emerges from the pods and enters the ground to pupate, or if the pods have been harvested it spins a tough silken cocoon in the nearest available sheltered place. Larvae that become mature during the warm weather of early August, out of doors, or later under laboratory conditions, pupate immediately and emerge as adults in about six weeks. Adults have been obtained in our laboratory on August 5 and as late as August 28. Whether these lay eggs which
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