Ixxi 



The same author has also published the following Orthoptero- 

 logical memoirs, presented to the Royal Academy of Stockholm, 

 Band 4, No. 5 :— 



1. '* Les Genres des Acridioclees de la Faune Europeenne." 



2. " Aper^u des Genres des Acridioclees de I'Amerique du Nord." 



3. " Sur Anostostoma et quelques Genres voisins." 



4. " Diagnoses d'Orthopteres nouveaux." 



A list of the Orthoptera of Illinois, containing forty-six 

 species, of which two are new, b}'^ Cyrus Thomas, is published in 

 the ' Bulletin ' of the Museum of Illinois. 



We have to welcome the appearance of the first part of the 

 'Annales de la Sociedad Espanola de Historia Natural,' con- 

 taining a synopsis of the Orthoptera of Spain and Portugal, by 

 M. Bolivar. 



A memoir by Mr. Samuel H. Scudder, upon the Orlhopterous 

 insects collected by the United Stales Expedition for Geographical 

 Surveys West of the 100th Meridian during the field season of 

 1875, has appeared as an appendix, "J. J.," to the 'Annual Report 

 of the Chief of the Engineers' (Washington). The fifty species 

 here described were collected chiefly in New Mexico and in the 

 eastern slopes of the Rocky Mountains, and of this number nearly 

 one half proved new to science. Three crickets, nine long-horned 

 grasshoppers, and thirty-six locusts {Acridii), are described and 

 careful tabulations of the species of Pezotettix, and of the sixteen 

 genera of CEdipodidce, of which several are new are added. 



We are indebted to Mr. S. H. Scudder for a valuable tabulation 

 of the primary groups of Orthoptera, with references to all the 

 works in which American species of the order have been published 

 ('Psyche,' vol. i., No. 26). 



We are further indebted to Mr. Scudder for a memoir on the 

 mode in which the wings of the Blattidee and earwigs are folded 

 and unfolded, being a supplement to the memoirs of M. H. de 

 Saussure on this subject ('American Naturalist,' Sept. 1876). 



Careful descriptions of the thirty-eight species of earwigs known 

 to be natives of North America and the West Indies are given by 

 Mr. Scudder, in the 'Bulletin of the Geological and Geographical 

 Survey of the U.S. Territories,' vol. ii.. No. 3 (Washington), together 

 with some short notes on the fossil species of the grouji liitlierto 

 observed in North America. 



