A new genus, Alainchabaudia, is proposed, apparently close to Hartertia, but differing in the presence of modifications of the anterior end of the buccal capsule, which is prolonged dorsally and ventrally and ends in four submedian teeth. Two species are included: the type species, C. alcedinis sp.nov., from Halcyon sanctus (Queensland and South Australia) and Dacelo gigas (New South Wales); and A. aegotheles (Johnston & Mawson) syn. Habronema aegotheles J. & M., from Aegotheles cristata (South Australia).

The specimens from Queensland were lent by Dr John Pearson of the School of Parasitology of the University of Queensland. The bodies of the other two birds were sent to me for dissection, Dacelo gigas by Mr H. J. de S. Disney, Curator of Birds in the Australian Museum, Sydney, and Halcyon sanctus by Mr H. Condon, Curator of Birds in the South Australian Museum, Adelaide. I am most grateful to these gentlemen for their assistance.