Sievert Allen RohwerSievert Allen Rohwer (22 December 1887 , Telluride

Telluride, Colorado

The town of Telluride is the county seat and most populous town of San Miguel County in the southwestern portion of the U.S. state of Colorado. The town is a former silver mining camp on the San Miguel River in the western San Juan Mountains...

 - 12 February 1951 was an American entomologist who specialised in Hymenoptera

Hymenoptera

Hymenoptera is one of the largest orders of insects, comprising the sawflies, wasps, bees and ants. There are over 130,000 recognized species, with many more remaining to be described. The name refers to the heavy wings of the insects, and is derived from the Ancient Greek ὑμήν : membrane and...

He was a senior insect taxonomist with the United States Department of Agriculture

United States Department of Agriculture

The United States Department of Agriculture is the United States federal executive department responsible for developing and executing U.S. federal government policy on farming, agriculture, and food...

. Rohwer wrote Technical papers on miscellaneous forest insects. II. The genotypes of the sawflies or woodwasps, or the superfamily Tenthredinoidea. Technical series US Department of Agriculture, Bureau of Entomology, Washington, DC 20: 69–109 (1911) and very many papers describing new species of Hymenoptera.
His collection is held by the Smithsonian Institution

National Museum of Natural History

The National Museum of Natural History is a natural history museum administered by the Smithsonian Institution, located on the National Mall in Washington, D.C., United States. Admission is free and the museum is open 364 days a year....

Washington D. C.