MISCELLANEOUS NOTES ON AUSTRALIAN DIPTERA. I. By G. H. Hardy, Walter and Eliza Hall Fellow in Economic Entomology, Queensland University, Brisbane. (Four Text-figures.) [Read 25th October, 1933.] Family Leptidae (Rhagionidae). The name Leptidae is the one by which this family is known in England and Australia, but in America Rhagionidae has been adopted, following Kertesz. Dasyomma abdominalis, n. sp. (j*. Eyes contiguous, bare; the antennal triangle, face and occiput below are light grey, the occiput above and tire ocellar tubercle black. Antennae and palps yellow with a few black hairs on the basal segments of the former, and dusky hairs on the latter; elsewhere the hairs yellow. Thorax uniformly reddish-brown, approaching chestnut colour but richer, and darkest on the pleura with all hairs black. Abdomen uniformly shining black and with dark hairs. Legs dusky reddish-brown. Hab. — New South Wales: Como, 1st October, 1921, found resting in a large tunnel forming a watei'-channel that runs under the railway. The specimen is unique. Note. — Species of Dasyomma hitherto described from the Australian region have the eyes hairy and are limited to Tasmania. Several species are now known from the mainland of Australia, but only two are before me, both being distinguished by the bare eyes and the colour pattern. Dasyomma flava, n. sp. 5. Apex of proboscis, hairs on the palpi and on the two basal segments of the abdomen and on the upper part of the occiput black; hairs elsewhere and on the head yellow. Eyes bare. Thorax uniformly yellow with black hairs above, the abdomen shining yellow and slightly dusky towards the apex. Legs at trochanters and extreme base of the femora black or dusky, and the tibiae black, but elsewhere yellow. Wings hyaline. Hab. — New South Wales: Blackheath, 20th November, 1919, one female. I have seen the male of this, but it is not before me. The large valley on the west of Blackheath township has a creek near overhanging rocks from which this specimen was taken; the rocks are adjacent to the footbridge crossing the creek. Cheysopilus fascipennis, n. sp. (^. Eyes contiguous, bare, ocellar triangle black. Frons and face black with a pulverulent covering that makes them shine dull yellow in accordance with the incidence of light; the large bulbous tubercle in the centre of the otherwise