58 NOTES ON AUSTRALIAN MOSQUITOES (DIPTERA, CULICIDAE). PART VII. THE GENUS HABPAGOMYIA.* By R. H. Whakton, B.Sc. (Twelve Text-figures.) [Read 30th April, 1947.] Contents. Page. Introduction 58 Genus Harpagomyia 58 Characters of the genus 59 Relation to other genera 60 Australasian species 60 Oriental species 65 Keys to Australasian and Oriental species of Harpafjotnyia 67 Acknowledgements 68 References 68 Index to species of Harpagotnyia mentioned in the text 68 Introduction. The present paper records for the fifst time the occurrence of the genus Harpagomyia de Meijere in the Australasian Region. H. genurostris (Leicester) is recorded from northern Australia and southern New Guinea, one new species is described from northern New Guinea and another from the Solomon Islands. The previous known range of the genus embraced the Ethiopian and Oriental Regions. In the latter region it extended eastwards to the Philippine Islands in the north and to Java in the south. Although a complete revision of the ■ Oriental species is not at present possible, comparative notes on the Oriental and Australasian species are included in an attempt to facilitate their identification. Har'pagomyia is one of the most remarkable of mosquito genera because of the association of at least some species with ants belonging to the genus Cremastogaster. The adults obtain food from these ants by inserting the proboscis between the ants' jaws and absorbing any food offered. This association was first observed by Jacobson (1909a) in Java and was subsequently confirmed by James (1914) in Ceylon, and Farquharson (1918) in Tropical Africa. However, no such relationship has been observed in the Australasian species as, so far, the only adults examined have been bred through from larvae. Genus Harpagomyia de Meijere. DB Meijere, J. C. H., 1909. — Tijdschr. Ent., 52:165. Edwards, F. W., 1921. — Trans, ent. Soc. Lond., 1921 : 496. , 1932. — Culicidae in Wytsman's Genera Insectorum. Fasc. 194 : 92. SYNONYMY. Malaya Leicester, 1908 (nee Malaia Heller, 1893). Culicidae of Malaya in Stud. Inst. Fed. Malay States. 3:258. Genotype: M. genurostris. Grahamia Theobald, 1909. Colonial Office Miscell. Publ. No. 237: 23. Genotype: G. trichorostris. ♦Continued from these Proceedings, Ixx (5-6), 1945, 219.