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Blaberus craniifer
Death's Head Cockroach, Death's-head Cockroach
Blaberus craniifer is a large cockroach species distinguished by the distinctive jack-o'-lantern marking on its pronotum. It exhibits complex sexual behavior including male-produced substrate vibrations and sex pheromones for long-distance female attraction, followed by stereotyped courtship rituals and post-copulatory mate guarding. Unlike the closely related Periplaneta americana, this species shows reduced wind-mediated escape responses and prefers digging behaviors when disturbed. It serves as a host for specific gregarine and nematode parasites that occupy different gut regions without significantly affecting host growth, indicating long co-evolutionary adaptation. The species is valued in entomological collections and hobbyist rearing due to its striking appearance and minimal care requirements.