studies in malayan, melanesian and australian tettigoniidae (orthoptera). By Morgan Hebard. In 1920 the author published a first paper, dealing with that part of the collections here treated which covered the section be-longing to the family Mantidae. 1 Though the present paper is considerably larger, the number 01 species of Tettigoniidae known from the regions under consideration is very much greater and, as a result, the present work is not intended to be in any way monographic. A number of difficulties have been cleared up and the proper sequence of species in some places we feel is now defined. Much work remains to be done, and the Tettigoniidae of these regions must be monographed before the student will be able to determine material in small series. The literature on the group is too vast and scattered to be accessible, unless a great amount of preliminary work has been done; and reference to a large and comprehensive library is a constant necessity. In order to aid in locating the literature, particularly that subsequent to Kirby's Catalogue, numerous references have been given in the present study. All of the material here recorded, unless otherwise stated, is in the author's collection at The Academy or Natural Sciences of Philadelphia, with the exception of duplicate specimens from Mr. C. F. Baker, representing species not in his collection; such will be forwarded to him whenever desired. Five hundred and thirty-one specimens are recorded, representing ninety-four genera and one hundred and ninety-one species, of which fourteen genera, one subgenus, seventy-three species, and one subspecies, are new. Unfortunately, the great majority of species are represented by but one or two specimens. We have found that Wallace's line separates quite as large a percentage of species of Tettigoniidae as of the Mantidae, clearly delimiting the Malayan from the Melanesian fauna. 1 Proc. Acad. Nat. Sci. Phila., 1920, pp. 14 to 82. (121)
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