324 



PSYCHE. 



rjaiiuarj t8g6. 



described b}' Harris in his Report, and 

 seven by Scudder in his Materials. So 

 variable are some of these species in 

 color and structure that it is not sur- 

 prising that several additional names 

 were applied to forms which further 

 study has shown to be one species. 



Some doubt still remains as to the 

 proper specific names to be borne by 

 certain species, but since nothing less 

 than a study of the fauna of the localities 

 from which the types were procured 

 and a comparison when possible with 

 the types will finally settle the specific 

 terminology, such a course involving 

 an amount of research impracticable at 

 present, I have retained the current 

 names. 



It was to be expected, as it has 

 proved, that changes would be required 

 in the generic appellations hitherto 

 borne by several of our species. Thanks 

 to the masterly Revision of Brunner 

 von VVattenwyl (Rev. d. syst. d. orth., 

 — Ann. d. Mus. civ. d. Genova, ser. 

 2a, vol. xiii, 1S93) the American stu- 

 dent of orthoptera can now align 

 his work more closely in this respect 

 with that of European contemporaries. 

 Nevertheless, in applying to the Amer- 

 ican fauna the generic diagnoses therein 

 set forth much caution is necessary, 

 owing partly to the extreme brevity of 

 characterization, and partly because 

 forms will be met with either unknown 

 to that author, unknown to occur in 

 this hemisphere, or for some reason not 

 included. The substitutions are : Or- 

 phula, for three species usually spoken 

 of as Stenobothrus ; and Mecostethus, 

 for those hitherto called Arc^ptera or 



Stethophyma. In addition, it has 

 seemed necessary to establish new 

 genera for those forms commonly 

 known as Opoinala brac/typtera and 

 Chloealtis (or Chrysochraon) viridis, 

 and one less known sjDecies. 



In addition to most of the works 

 listed in Part I of these Notes, Com- 

 stock's Introduction, Smith's Orth. of 

 Maine and Orth. of Conn, (full titles 

 may be found in my Prelimiiiaiy List, 

 — Ps\che, '94, pp. 102-10S), and 

 Beutenmiiller's Orth. of New York 

 (Bull. Amer. mus. nat. hist., vi, 

 253-276, '94) are cited. 



The technical terms used will need 

 no explanation to the student of orthop- 

 tera and with the aid of the diawings 

 will be readily understood by others. 

 In this connection it may be cjf interest 

 to state that the author has in contem- 

 plation an Introduction to the Acrididae 

 of a more popular character than these 

 Notes can of necessity be. 



The following paper is based upon 

 the material in my collection, and the 

 notes thereon, consisting of over 4000 

 specimens chiefly collected in person, 

 and comprising examples of both sexes 

 and every form, reversional or dimor- 

 phic, known to occur in New England. 

 I have also examined Mr. Scudder's 

 collection, which is of especial interest 

 in containing the types of several species. 



Since the publication of Part I con- 

 tinued study of the genus Tettigidea 

 indicates the specific identity of our two 

 forms and their distinctness from T. 

 lateralis • iinA polymorp/ia (see Journ. 

 N. Y. ent. soc, vSept., '95). Conse- 

 quently our species must receive 



