Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
238, 239, 241, 285-291. 1952: 20, 21, 47, 50-52, 55,
R. Zwiefel
Feb. 23, 1953
242
Centris tenuis
5 mi. NE Milroy, Santa Clara Co., Calif.
On soil beneath 6' x 1' oak log on 30° hillside
with 20% cover of bay and coast live oak,
soil temperature 9.4°C. Yr was not
under tree, but on open or grassy slope.