I really enjoyed reading this thread. Pests in urban areas is something rarely discussed, but its something we all have to deal with.
In Honolulu, cockroaches will always be the most common pest. Wherever you eat food, they will nest. Had a friend who would eat in his car often until he found a nest of them living inside the engine. It's a neverending battle with the roaches.
If you go to the more suburban areas you can have centipedes which are very poisonous, but their sting isn't fatal unless you're very young or old.
Mosquitos really aren't an issue unless you go hiking in the jungle or go inland. Honolulu being an urban city in the tropics has a surprisingly low amount of mosquitos.
The worst pest though is feral roosters/chickens which are beginning to make their presence in urban Honolulu. They have already overrun Kauai, parts of Maui, and Big Island, and the north shore of Oahu. Now they're becoming more common in the city. Since Fall of last year, I've been awakened by roosters at 3am. Living in one of the most densely populated urban areas in the country, you would never think that roosters/chickens which are generally associated with rural areas, would be a problem.
City's Solution to Fowl Problem in Urban Honolulu is Working Councilwomen Says (she is a full of shit IMO)
http://www.khon2.com/news/local-news...8857/901493149
Ala Wai Residents Fed Up with Noisy Roosters
http://www.khon2.com/news/local-news...7639/901498467
Feral Chicken Problem Invades Oahu
http://www.hawaiinewsnow.com/story/6...m-invades-oahu
Hawaiian Humane Society Now Responding to Chicken Noise Complaints
http://www.kitv.com/story/34311091/h...ise-complaints