Álvaro Wille Trejos

Alvaro Wille Trejos

May 17, 1928 – June 11, 2006

naturalist

Costa Rican naturalist

Trejos, Álvaro. 2025. Natural history specimens collected and/or identified and deposited. [Data set]. Zenodo. https://doi.org/10.5281/zenodo.8053733

Has collected specimens later identified by:

June 08, 1940 – July 11, 1994

United States

Collected Halictidae and identified Halictidae

September 22, 1918 – November 01, 2015

United States

Collected Apidae and identified Halictidae

October 26, 1890 – February 10, 1983

Collected Apidae and identified Megachilidae

November 08, 1927 – February 20, 2018

United States

Collected Halictidae and identified Halictidae