Puparium Formation in Diptera

THE chemical processes involved in hardening and darkening of insect cuticle have been the objects of increasing attention during recent years1–6. Hardening and darkening of the cuticle have been attributed to a tanning process involving the proteins of the cuticle1,5,7,8. But Malek9,10, Jones and Sinclair11, Dennell12, and Kawase13 have produced… CONTINUE READING