The different parts of the female reproductive organs are the following:
1. The two ovaries.
2. The two oviducts.
Fig. 472.—Female organs of generation of a saw-fly (Athalia centifoliæ): a, b, c, the 18 ovarial tubes originating from each of the two oviducts (d), and containing the immature eggs; e, common oviduct; f, spermatheca; g, poison-sac; h, poison-glands; 10, last ganglion.—After Newport.
3. The common egg-passage in nearly all insects (its distal or hindermost part forming the uterus or vagina).
4. The receptaculum seminis, or spermatheca.
5. The bursa copulatrix, or copulatory pouch.
6. The accessory glands (cement, sebific, or colleterial glands, or “oil reservoirs,” glandulæ sebaceæ, coleterium).
The ovaries and the ovarian tubes.—As in the testes, so each ovary consists of a variable number of ovarian tubes, by some called ovarioles, united by a thread at the distal end, and at the lower or hinder end opening into the oviduct. Each ovarian or egg tube is divided into three sections: (1) the terminal thread; (2) the terminal chamber, and (3) the actual ovarian tube, or chambered main division, this forming the longest part of the egg-tube.