Morphology of female external genitalia in Phenes raptor (Odonata: Petaluridae)

The exoskeleton of the female genitalic region in Phenes raptor is described based on light microscopy and scanning electron microscopy. It is shown that in this species the pattern of sclerites, articulations, processes, and apodemes is overall the same as in other ovipositor-bearing Odonata, i.e. Zygoptera, the anisozygopteran Epiophlebia, and the anisopteran Aeshnidae. However, many…

Morphology of follicle cells of Libellulidae (Odonata)

In libellulids, mature oocyte size varies within and between individual ovaries. The regulating mechanism is not yet understood. Variations in the contents of the follicle cells, and thereby their ability to secrete material into the oocyte, might explain some of the observed differences in oocyte size. We therefore investigated the follicle cell surface, the interstitial…

The ovipositor of the relic dragonfly Epiophlebia superstes: a morphological re-examination (Odonata: Epiophlebiidae)

The morphology of the endophytic ovipositor in Epiophlebia superstes was studied with light and electron microscopy with special emphasis made on the musculature and microsculpture of the exoskeleton. Structural characters are described and illustrated. The musculature of the ovipositor has many similarities with zygopterans. The ovipositor and 10th adominal segment bear groups of setae and…