Buxton, who spent four months in the New Hebrides, recorded only thirteen species during the time of his visit. At this time, even though collections were made during the dry season, indications were that a rich mosquito fauna would in all probability never be found. A total of eighteen species was collected during the time spent by the author in the New Hebrides. Limited collections were made from the islands of Efate, Malo, Eissi, Tutuba, Aore, Malekula, and Tangoa. These keys are based upon reared and collected material made from Espiritu Santo (New Hebrides) during a year s observations throughout the dry and wet seasons. The only anopheline found was Anophles farauti Lav. which was present on all the islands of the group except Tutuba and Eissi. No attempt is made in these keys to give specific characters for identification of this species, for they are we11 covered elsewhere. All collections and observations were restricted to the coastal areas and none is available for elevations over 1000 feet.