Nephus (Nephus bipunctatus) is a generalist predator of mealybugs and prefers to feed on smaller mealybug life stages and eggs.
Nephus bipunctatus is a very small beetle of about 1.5mm and under the right conditions it completes its development from egg to adult within 28 days. Females can lay up to 3 eggs per day and a total of 150 eggs in their lifetime. One BioNephus larva can feed on up to 9 mealybug nymphs per day and up to 150 mealybug nymphs during their development.
Both larval and adult stages feed on mealybug and are consistently found underneath bark or in crevices. The adults are very cryptic and not easily found in the field.
 
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