Fam. Ephydrindæ. Ephydra aquaria. An aquatic fly abounding on the surface of pools and on the damp banks of streams on the sea-shore. From my observations, they are to be found from January to May (1909). The larvæ live in saline pools on the sea-shore, and have been described by Dr. Benham in the Trans. N.Z. Inst., vol. xxxvii, p. 308. Domina metallica. A minute fly about 2 mm. in length. This species is not common, only two specimens having been obtained, during August and September (1908). Explanation of Plates XXVIII and XXIX. Plate XXVIII. Fig. 1. Odontomyia chloris. Fig. 2. Sarcophaga impatiens. Fig. 3. Limnophora rapax. Plate XXIX. Fig. 1. Syrphus novœ-zealandiœ. Fig. 2. Abdomen of Syrphus ortas. Fig. 3. Abdomen of Melanostoma fasciatum. Fig. 4. Saropogon fugiens. Fig. 5. Helophilus trilineatus. Fig. 6. Itamus varius.

Art. XXVII.—A New Species of Empis. By David Miller. [Read before the Otago Institute, 12th October, 1909.] This is the first of a series of papers dealing with new species of New Zealand Diptera, as they accumulate in my collection. Fam. Empididæ Genus Empis, Linæus. Hutton, Trans. N.Z. Inst., vol. xxxiii, p. 30. Empis otakouensis,* The name “otakouensis” is derived from that of a Maori village known as Otakou, situated a short distance from Taiaroa Head, and not far from the locality where this species was found. sp. nov. Male and female. Head spherical (fig. 2), borne by a short neck; eyes bare, dichoptic; ocelli present; occiput with short bristles, elongated at the ocelli to form two pairs of vertical and a single pair of post-vertical bristles, directed forward; fronto-orbital bristles short, extending to the base of the antennæ; frons, vertex, and occiput dark brown, covered with silvery-grey tomentum; first and second joints (e, f) of antennæ bristly, not elongate, same colour as the frons, third joint (c) not bristly, elongated,