PROCEEDINQS 



WASHINGTON ACADEMY OF SCIENCES 



Vol. Ill, pp. 487-506. November 7, 1901, 



PAPERS FROM THE HOPKINS STANFORD GALA- 

 PAGOS EXPEDITION, 1898-1899. 



IV. 



ENTOMOLOGICAL RESULTS (4): 



ORTHOPTERA. 



[Text Figures 35-44.] 

 By Jerome McNeill. 



CONTENTS : 



Introduction 487 



Technical descriptions. 



Forficulidse 492 



Blattidae 493 



Mantidae 494 



Acrididse 495 



Locustidae 496 



Grillidae 502 



INTRODUCTION. 



In his paper on the Orthoptera of the Galapagos Islands^ 

 Scudder enumerates eight expeditions which have made collec- 

 tions there. These are Darwin in the Beagle^ 1835 \ the Swed- 

 ish frigate Etigenie^ 1852 ; Louis Agassiz, in the Hassler^ 1872 ; 

 Commander Cookson, in the Petrel, 1875 ; Wolf, State Geolo- 



>Bull. Mus. Com. Zool., Vol. xxv, No. i, pp. 1-24, PI. i-iii, Cambridge, Sept., 

 1893. 



Proc. Wash. Acad. Sci., November, 1901. (4S7) 



