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Show 132 ME. E. E. AUSTEN O N N E W DIPTEROUS INSECTS. [Jan. 17, Fig. 22. Telesto perronii (antenna and palpi X 2), P- 73. 23. Motasingha dirphia (antenna and palpi X 2), p. 7-i. 24. Ceratrichiaphocion (antenna and palpi X 2), P- U/. 25fl,5. Iambrix salsala (antenna and palpi X 2), p. to. 26 a, b. Apaustus menes (antenna and palpi X 2), p. vb. 27 fl, b. Adopcea thaumas (antenna and palpi X 2), p. y«. 28. Baoris oceia (antenna and palpi X 2), p..106. 29. Parnara mathias (antenna and palpi X 2), p. 1°°- 30. Geqenes nostrodamus (antenna and palpi X 2), p. 104. 2. Descriptions of New Species of Dipterous Insects of the Family Syrphida? in the Collection of the British Museum, with Notes on Species described by the late Francis Walker.-Part I. BACCHINI and BRACHYO-PINI. By E. E. AUSTEN, Zoological Department, British Museum. [Received December 2, 1892.] (Plates IV. & V.) The following is intended to be the first of a series the Syrphidce in the Collection of Diptera in the British Museum. For some time past I have been engaged in working on these Insects, and it was my original intention not to publish anything upon the subject until the re-arrangement of the Family had been completed. But since it has been urged upon me that a saving of time is effected by writing about a group while it is fresh in one's memory, I have decided to begin the preparation of these papers at once. This is the reason wdiy I have commenced in the middle of the Family. Appended is a list of the species now to be described, wdth their habitats. Ethiopian Region. Bhingia scmi~ecerulea, p. 162 Sierra Leone. Oriental Region. Baccha nubiUpennis, p. 136 Ceylon. „ triangulifera, p. 138 „ pulchrifrons, p. 139 ,, fallax, p. 142 „ amphithoe, p. 142, Wlk. (re-described) ... Mu'lmein, Sarawak, Ceylon. Australian Region. Baccha bicolor, p. 137 Mysol. „ refulgens, p. 138 Bouru. >> sulica, p. 144 Sula Is. |