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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
Time course of ovarian development in the non-diapause adults of N. barkeri reared at 25 °C (A) and the stages in ovarian development in the diapause adults reared at 18 °C (B). The sample size for each histogram is 30.