. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. Fig. 1.—Aphanicercella barnardi Tillyard. a, $ and $ showing position in copula, wings of $ removed; b, dorso-lateral view of <$ and $ abdomens; c, d, lateral and ventral views showing supra-anal lobe and titillators of $ within vulva of $ (diagrammatic; pleurite and cercus in c omitted). towards one another, and the apex of the $ abdomen curved upwards and slightly forwards (figs. 1 and 2). In Aphanicercopsis and Aphani- cercella the supra-anal lobe enters the vulva, the denticles on its lower ma
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. Fig. 1.—Aphanicercella barnardi Tillyard. a, $ and $ showing position in copula, wings of $ removed; b, dorso-lateral view of <$ and $ abdomens; c, d, lateral and ventral views showing supra-anal lobe and titillators of $ within vulva of $ (diagrammatic; pleurite and cercus in c omitted). towards one another, and the apex of the $ abdomen curved upwards and slightly forwards (figs. 1 and 2). In Aphanicercopsis and Aphani- cercella the supra-anal lobe enters the vulva, the denticles on its lower margin engaging the ventral wall of the vulva and serving to anchor the lobe in posi- tion. The object of the lobe seems to be to prepare the way for the entry of the more delicate titillators or in- tromittent organs, which penetrate the oviducts to their full extent. In Aphanicerca the mating position is the same, and it cannot be doubted that the supra-anal lobe enters the vulva; but the sexes separate so readily that it has not been possible to secure a pair in copula, in spite of many attempts with the common A. capensis. The bilobed dorsal process of the IXth segment probably acts as a clasper. Oviposition has not been observed, but the ripe eggs of some of the species are described Fig. 2.—Aphanicercopsis tabu- laris n. sp. Semi-diagram- matic view of <$ and $ abdomens in Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original South African Museum. Cape Town : The Museum
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
