INSECTS OF THE ORDER ORTHOPTERA OF THE 

 PINCHOT EXPEDITION OF 1929 ^ 



By A. N. Caudell 

 Entomologist, Bureau of Entomology, United States Department of Agriculture 



The Orthoptera brought back in 1929 by the Pinchot Expedition 

 to the South Seas were mostly taken on Barro Colorado Island, Canal 

 Zone, and in the Galapagos Islands. This material, numbering 66 

 specimens of 20 species, represents no new genera and but one new 

 species. There are, however, a number of new geographical records. 



For convenience the following report is separated under geo- 

 graphical headings. All specimens bear the Pinchot expedition 

 label, and one indicates the collector, Dr. A. K. Fisher. Some also 

 bear the Accession No. 105848. 



WEST INDIES 



Nymphs of two well-known roaches comprise the only Orthoptera 

 brought b}' the expedition from the West Indies. They are as 

 follows : 



Family BLATTIDAE 



Periplaneta australasiae Fabricius: One small nymph labeled 

 " G. Cayman, W. I., Apr. 17, 1929." 



Pycnoscelus surinainensis Linnaeus : One immature specimen 

 bearing same data as above. 



BARRO COLORADO ISLAND. CANAL ZONE 



The artificial island of Barro Colorado, standing in an artificial 

 lake resulting from the Panama Canal project, seems to be a natural- 

 ist's paradise. Fairchild ^ presents a map of the island and its sur- 

 roundings, together with several excellent photographs; and a small 

 book by W. C. and M. H. Allee, entitled " Jungle Island," published 

 in 1925, has to do with the flora and fauna of this island, but it con- 

 tains no reference to Orthoptera. The only paper Imown to the 

 writer listing even in part the forms occurring on Barro Colorado 

 is one by Allee ^ in 1926, which listed representative forms of various 



1 The narrative of this expedition will be found in the book To the South Seas, by Gifford 

 Pinchot, published In 19.30. 



2 Journ. Heredity, vol. 15, pp. 99-102, 1924. 

 5 Ecology, vol. 7, pp. 445-468, 1926. 



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