Sentence:  In the United States Department of Agriculture 's Yearbook of Agriculture , 1952 , which is devoted entirely to insects , George E. Bohart mentions a site in Utah which was estimated to contain 200000 nesting <WSD>females</WSD> . 
Meaning of the word marked with <WSD> tags:  an animal that produces gametes (ova) that can be fertilized by male gametes (spermatozoa)