PROCEEDINGS 



OF THE 



WASHINGTON ACADEMY OF SCIENCES 



Vol. Ill, pp. 371-379. November 7, 1901. 



PAPERS FROM THE HOPKINS STANFORD GALA- 

 PAGOS EXPEDITION, 1898-1899. 



II. 



ENTOMOLOGICAL RESULTS (2) : 



DIPTERA. 



By D. W. CoqiTiLLETT, 



Custodian of Diptera, U. S. National Museum. 



The earliest recorded capture of Diptera on the Galapagos 

 Islands occurred during the cruise of the British Frigates Ad- 

 venture and Beagle in the years 1826 to 1836, made famous by 

 Darwin's celebrated Narrative, published in 1839. "^^^ ^^^ 

 Diptera then collected were described by Walker in the well- 

 known British Museum Lists. 



During the years 185 1 to 1853 the Swedish frigate Eugenics 

 also visited these islands, and collected Diptera ; these were de- 

 scribed by C. G. Thomson in 1868. 



The British steamship Petrel visited them in 1875, and ob- 

 tained two species of Diptera ; these were reported upon by F. 

 Smith in the Proceedings of the Zoological Society of London 

 for 1877, page 84. 



Finally, the U. S. steamer Albatross, during her cruise in 

 1887 and 1888 also visited these islands and collected several 

 specimens of an undetermined species of Culex, reported upon 

 by Dr. S. W. Williston in the report published by Dr. L. O. 

 Howard in the Proceedings of the U. S. National Museum, 

 Vol. XII, 1889. 



Proc. Wash. Acad. Sci., Nov., 1901. 371 



