I N T R 1) IT C T I ^^. vii 



In 1805 Brunner von Wattonwyl published his ' Nouveau 

 Systeme des Blattaires,' and in 1808 F. Walkoi', having 

 rearranged the British Museum Coilection, published his 

 ' Catalofi^ue of the Specimens of Blattarise in the British 

 Museum ' (1868), Supplements to which appeared at intervals 

 from 1869 to 1871. Unfortunately, he was unable to consult 

 Brunner's work while preparing his own. 



The Mantidce and PJiasmidce are sometimes treated as a 

 separate section of Orthoptera, called Gressoria. 



The Mantidce were rearranged by H. W. Bates, and a series 

 of plates were prepared to illustrate them ; but these were 

 not published till 1889, when they were issued accompanied 

 by a complete Catalogue of the Family, and descriptions of 

 new species, by J. 0. Westwood, under the title of ' Revisio 

 Insectorum Familise Mantidarum/ 



Westwood had previously rearranged the Pliasmidce in the 

 British Museum ; and in 1859 the Trustees published a 

 monograph on the family, by Westwood, under the title of 

 ' Catalogue of Orthopterous Insects in the Collection of the 

 British Museum : Part I. Phasmidse/ 



In 1893 Brunner von Wattenwyl published a " Revision des 

 Systeme des Orthopteres " in the ' Annali del Museo Civico di 

 Storia Naturale di Genova,' ser. 2, vol. xiii. The ForficuUdce 

 and Ilemimeridce were omitted ; but otherwise the work is the 

 most comprehensive yet published on the Orthoptera as a whole, 

 and includes synopses of the families and genera of the greater 

 part of the order, with the exception of the Gryllidce and some 

 families of the PJmsgontiridcc, which had already been mono- 

 graphed by Brunner, De Saussure, and others. 



The remaining portion of the present Catalogue will be devoted 

 to the Orthoptera Saltatoria, comprising the families Achetidce 

 (or Gryllidce), Phasgonuridce, and Locustidce, or Crickets, Grass- 

 hoppers, and Locusts. 



These have been previously catalogued by F. Walker in his 



