Ovariole
An ovariole is a tubular component of the insect ovary, and the basic unit of egg production.[1] Each ovariole is composed of a germarium (the germline stem cell niche) at the anterior tip, a set of developing oocytes contained within follicles, and a posterior connection to a common oviduct.[2] While most insects have two ovaries, the number of ovarioles within each ovary varies across insect species.[3] This number may also be variable across individuals within a species, or between the left and right ovaries within an individual.