Tiny, shiny Delphastus beetle is about one quarter the size of a ladybug and feeds on several species of whitefly. Adult Delphastus prefer to dine on the eggs and larvae of whitefly consuming several hundred per day, but will also dine on spider mites. Their light yellow/green larvae also enjoy whitefly eggs consuming 100-200 eggs a day.  Unlike their female counterparts which are entirely black, male Delphastus have a brown head. The female Delphastus beetle will lay multiple clusters of 8-12 clear eggs.