DESCRIPTION OF A NEW OENUS (BATRAGHOMYIA, W. S. MACLEAY, MS.), AND TWO SPECIES OF DIPTEROUS INSECTS PARASITIC UPON AUSTRALIAN FROGS. By Frederick A. A. Skuse. (Plate x) More than twenty years ago Mr. George F. Angas reared a Dipterous insect from a small frog, Cystignathus Sydneyensis, Kr. (^=Crinia signifera), for which Mr. W. S. Macleay devised the appropriate appellation Batrachomyia, but did not characterize the newly discovered genus. The original specimen was deposited in the Australian Museum. The first printed record we have relating to Batrachomyia is a note by Mr. Gerard Ki-efift ( then Curator of the Australian Museum), read before the Entomological Society of N.S.W,, in 1863 (Trans. I. p. 100), giving an account of the metamorphoses of a fly reared by him from another frog, (Uj^eroleia) Hyperolia marmorata, which he considered to belong to the same genus as the above-mentioned fly, but which to all appearance represented another species ; the author also roughly figures different stages of the insect's existence, and gives a dia;^ram of the wing of the imago. Mr. Krefft says that the parasite is most common upon Cystignathus Sydneyensis ( Grinia signifera), though he has met with it upon Pseudophryne Bihronii; and he observes that whenever he found specimens of Hyla Citropus they were always infested with them ; but although the larvae all reached the pupa state he could not succeed in keeping them alive afterwards ; only in the case of U. marmorata had the attempt been successful. Both these specimens appear to have been subsequently mislaid, for Mr. Olliff has on more than one occasion searched in vain for them in the Entomological
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