Make the task of supplying small insects to small invertebrates like spiderlings and mantid babies extremly easy. Simply place the unit on top of an established culture of fruit flies, Moth flies, mosquito larvae in the lower container. As they emerge as adults they enter the upper container where they can be refigerated for easy collection or can be extracted using an aspirator through the bottom hole. Can also be used with fly pupae for controlled fly collection. Price includes the full kit (excluding the insect culture)