1902,] NATURAL SCIENCES OF PHILADELPHIA. 629 CONTRIBUTIONS TOWARD A KNOWLEDGE OF THE ORTHOPTERA OF JAPAN AND KOREA, I.-ACRIDID^. BY JAMES A. G. REHN. The specimens which form the basis of this oontributiou are con-tained, in the collection of the Academy, and are principally from three sources : 1. A series . presented by Dr. H. C. Wood, simply labeled Japan, but in all probability from Yeso, as all the forms show Siberian affinities. 2. An excellent series from Kioto, purchased by the Academy from Mr. Y. Hirase. 3. A small series from Yokohama, contained in the Rehn Col-lection. Family ACRIDID^. Subfamily Acrydiinse {Tettigince Auct.) Acrydium japonicum (Bolivar). 1889 Tlettix] japonicus Bolivar, Ann. See. Ent. de Belgique, XXXI, p. 263. Four specimens, 3 males, 1 nymph. Japan. Dr. H. C. Wood. Subfamily AcridinaB {Truxalinm Auct.)-Acrida nasuta (Linnaeus). 1758. iGryllus'] {Acrida) nasutus Linnaeus, Syst. Nat., X ed.,p. 427. Fifty-six specimens, 25 males, 28 females, 3 nymphs. Chemulpo, Korea. Dr. W. H. Jones (7). Japan. Dr. H. C. Wood (7). Yokohama, Japan. Rev. H. Loomis (7). Rehn Collection. Kioto, Japan. Y. Hirase (35), Nos. 14 and 15. Both extreme color phases of this species are represented in the series, with many intermediates exhibiting a complete transition from the uniform green to the ochraceous and umber form. Parapleurus fastigiatus n. sp. Types, d and ? , Japan. Dr. H. C. Wood. Allied to P. alliaceus (Germar), but differing in the greater ex-
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