Healing of Gut Wounds in the Mosquito Aedes Aegypti (l.) And the Leafhopper Orosius A.Rgentatus (ev.)

Abstract

Healing of wounds made by puncturing the replete midgut of adult female Aedes aegypti occurs without the intervention of the haemocytes, which play an important role in all previously described examples of wound healing in insects. An eschar is formed on the cuticle within 24 hr, apparently as the result of haemolymph coagulation, but initial closure of the wound appears to be the result of the activity of the midgut musculature and healing to be due to the regenerative powers of the midgut epithelium. Survival as high as 80 per cent. is attained when the gut of engorged females is punctured.