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- 



