WAethiocarenus
WBaikuris
WBoltonimecia
WBrownimecia
WBurmomyrma
WCordulagomphus
WCoxoplectoptera
WRain beetle
WDlusskyidris
WHaidomyrmecinae
WHaidomyrmodes
WHaidoterminus
WKalligrammatidae
WMeiatermes
WMesoraphidiidae
WMyanmymar
WNanoraphidia
WNecroraphidia
WOmma
WOmmatidae
WPalaeontinidae
WPalaeontinoidea
WPlumalexius
WProterogomphidae
WPseudopulex
WRenphasma
WSinaeschnidia
WSphecomyrma
WSphecomyrminae
WStenophlebia
WStenophlebiidae
WTarsophlebiidae
WTytthodiplatys
WUndulopsychopsis