Key Identification Traits
Shape & Color: Dark reddish-brown to dark brown, pill-shaped, and roughly 8 to 10 mm in length.
Keel Line: Feature a slight ridge or seam along one side where young nymphs emerge upon hatching.
Capacity: A single ootheca can house roughly 14 to 16 cockroach embryos.
Social Media Context
Images like this frequently circulate in viral post formats asking “Found these behind my fridge, what are they?” to exploit shock value and drive high comment engagement from grossed-out viewers.
How to Handle Them
Vacuum & Seal: Immediately vacuum up any egg cases found, remove the vacuum bag or empty the canister, and seal the contents in a plastic trash bag outside.
Inspect Key Areas: Check warm, dark, and damp locations such as behind refrigerators, inside cabinets, near plumbing fixtures, and along baseboards.
Targeted Control: Use gel baits containing active ingredients like indoxacarb or fipronil to treat active infestations rather than surface sprays alone.