PROCEEDINGS 
OF THE 
CALIFORNIA ACADEMY OF SCIENCES 
FourtTH SERIES 
Vou. II, Part II, No. 18, pp. 347-357 May 21, 1926 
XVIII 
EXPEDITION OF THE CALIFORNIA ACADEMY OF 
SCIENCES TO THE GALAPAGOS 
ISLANDS, 1905-1906 
THE BEES AND ACULEATE WASPS = ae 
OF THE GALAPAGOS ISLANDS 
ARSON STIR 
3 
& JUN141926 % 
Ny Sy 
ATIONAL Muse 
BY 
FRANCIS X. WILLIAMS 
Honolulu, Hawaii 
This paper deals with the bees and aculeate*wasps collected 
in the Galapagos Islands while I was field entomologist to the 
Expedition of the California Academy of Sciences to those 
islands in 1905-1906. It also includes the few bees and wasps 
taken en route on islands between San Francisco and the 
Archipelago. Added to the list are other species of wasps 
taken on other expeditions to the Galapagos. 
The Galapagos Archipelago lies about 600 miles from the 
west coast of South America. Though crossed by the equator, 
a branch of the antarctic current bathes these islands and 
renders their climate a comparatively mild one. The lower 
May 21, 1926 
