Study of Incubation period and hatching of Chrysocoris stolli Wolf (Heteroptera -Pentatomidae-Scutellerane)

Insecta is the largest class of phylum arthropoda and members of this class are characterized by the presence of three pairs of legs; hence, called Hexapoda, Besides, these tracheate organism have usually one or two pairs of wings. Insects always have been associated with mankind in one way or the other as some of them are beneficial other are pests of crops and house hold articles. Chrysocoris stolli Wolf (Heteroptera- Pentatomidae-Scutellerinae) is a phytosuecivorous bug, which infests Cassia occidentalies, Croton sparisiflorum, Pennisetum typhoides, (Bajra) and Litchi chinensis at Saharanpur in good number and by its desapping habit causes considerable loss to these plants of economic value.The incubation period varies according to temperature and humidity of the environment, table-1. It ranges from 7 to 14 days with an average 9 days. During summer months, April to September 7 to 10 days are required for hatching while during winter months, October and November, it takes 12 to 14 days. There is no true operculum and at eclosion, a circular part towards cephalic end off the egg containing micropylar processes ruptures and separates of from the rest of the egg shell and opens just like a lid.