<span name="style_bold">Modifications to the process of mass production of parasitoids <span name="style_italic">Catolaccus grandis </span>and <span name="style_italic">Catolaccus hunteri</span>. </span>The present study was conducted to modify the actual mass rearing technology for <span name="style_italic">Catolaccus grandis </span>and <span name="style_italic">Catolaccus hunteri</span>. <span name="style_italic">Catolaccus grandis </span>and <span name="style_italic">Catolaccus hunteri</span>, hymenoptera parasitoids of <span name="style_italic">Anthonomus grandis</span>, the cotton boll weevil, in Tamaulipas, México during 2002. The efficiency of the paper towel to seal the wax hydrocarbon polyolefin molded capsules where the host is confined was determined; and the Chickpea weevil <span name="style_italic">Callosobruchus maculatus </span>effectivity was evaluated as a facticious host to rear both parasitoids. The results indicated that <span name="style_italic">C. grandis </span>y <span name="style_italic">C. hunteri </span>mass reared through <span name="style_italic">C. maculatus </span>as a facticious host was possible, and paper towel was effective in sealing the holes in molded WHPS capsules. This mass rearing of <span name="style_italic">C. grandis </span>y <span name="style_italic">C. hunteri </span>by using <span name="style_italic">C. maculatus </span>may contribute to increase security and easiness in the process, and a significant reduction in costs. Paper towel used to seal holes in molded WHPS capsules reduce costs in 50% per square meter of material, without affecting parasitism and emergence of de <span name="style_italic">C. grandis </span>de <span name="style_italic">C. grandis</span>..

Artificial encapsulation; Callosobruchus maculatus; facticious host; cotton plant; beneficial insects