Time for food processing and enzymatic secretion were evaluated in starved and fed adults of Andralus spinidnes a predatory hemipteran serving as biocontrol agent of rice pests. Adults were kept starved for 8 days then they were allowed to feed on Galleria melonella larvae (one larva per adult). They were dissected at time intervals of 1, 3, 6, 12, 24 and 48 h post-feeding to evaluate digestive enzymatic activities. It was observed that gut of starved adult is small and shrunken but gut of fed adults after 12 h was normal and well shape. No digestive enzymatic activity was observed in starved adults. Activity of general protease was the highest in 24 h post-feeding but the highest activity of α-amylase and lipase were noticed 12 h post-feeding. Also, specific protease activities showed different peaks at different time intervals. The highest trypsin-like, chymotrypsin-like and elastase-like activities were observed 12 and 24 h post-feeding although activity of chymotrypsin-like protease was still high even after 48 h. Cathepsin B showed the highest activity after 24 and 48 h but Cathepsin L and D had the highest activity after 12 h of post-feeding. The highest activities of amino- and carboxypeptidase were observed 24 h post-feeding. These results clearly demonstrate secretagogue mechanism of digestion and digestive enzyme secretions in A. spinidens. Also, secretion of digestive enzymes at least 12 h post-feeding could be attributed to extra-oral digestion made by the insects and liquefaction of the food material.