Largest cockroach According to Official Guinness Records,
The world's largest winged cockroach is Megaloblatta longipennis found in Peru, Ecuador and Panama. A preserved female in the collection of Akira Yokokura of Yamagata, Japan, measures 97 mm (3.8 in) in length and 45 mm (1.75 in) across. M. longipennis can have a wingspan of up to 8 in (20 cm). The average cockroach ranges from 0.24 in-3 in (0.6-7.6 cm) in length.
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