Fig. 1
From: Worker reproduction of the invasive yellow crazy ant Anoplolepis gracilipes

Morphology and reproductive systems in worker and queen of A. gracilipes. Shown are the external morphology of normal worker (a), physogastric worker (b) and queen (c). Gaster dissection presenting ovarian morphology of normal worker (d), physogastric worker (e) and queen (f). Note difference in length of ovarioles and number of mature oocytes