Burrowing

Digging behavior in cockroaches has not been studied, but the little, mostly anecdotal information we have indicates substantial variation, both in the behavior employed and in the body part used as a digging tool. There are at least two modes of creating tunnels in a hard substrate (soil, wood), both of which are accomplished by moving the substrate mechanically from in front of the insect and depositing it elsewhere. There are also two methods of digging into more friable material (guano, leaf litter, sand), achieved by insinuating the body into or through preexisting spaces. Cockroaches use refined excavation and building techniques in burying oothecae (Chapter 9).

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