The list includes cockroaches, mosquitos, centipedes, scorpions, termites, and fruit flies. All have arrived since 1778. The night-biting mosquito apparently was imported in water casks on a ship or ships from Mexico between 1826 and 1830.
Centipedes are arthropods rather than insects.
The large species, which has 20 pairs of walking legs and grows to a length of six or more inches, was introduced as early as 1829. So were scorpions. All four of the termites found in the Islands are immigrants. The earliest arrival, evidently before 1869, was the dry-wood termite. The lowland tree termite and forest-tree termite were first recorded in 1883.