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. Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn. Biology; Zoology. 74 B. R. Stuckenberg. Figs 10—14: 10—13 Spermathecae. 10) L. Jlavida; 11) L. canadensis', 12) L. lecerfi; 13) L. pal- lida. 14) L. hemmingseni, 9 abdomen, lateral, showing shape of cercus; position of median swellings on S8 indicated by arrow. 7. Epandrium elongate, projecting well beyond apex of synsternite (figs 24, 34). This condition contributes to the characteristic appearance of cr <y of the cylindrica group, which seemingly have a disproportionately large
. Bonner zoologische Beiträge : Herausgeber: Zoologisches Forschungsinstitut und Museum Alexander Koenig, Bonn. Biology; Zoology. 74 B. R. Stuckenberg. Figs 10—14: 10—13 Spermathecae. 10) L. Jlavida; 11) L. canadensis', 12) L. lecerfi; 13) L. pal- lida. 14) L. hemmingseni, 9 abdomen, lateral, showing shape of cercus; position of median swellings on S8 indicated by arrow. 7. Epandrium elongate, projecting well beyond apex of synsternite (figs 24, 34). This condition contributes to the characteristic appearance of cr <y of the cylindrica group, which seemingly have a disproportionately large hypopygium. A relatively much shorter epandrium occurs in the pilosula and canadensis groups, and in other afrotropical genera, except, but less markedly, in Perianthomyia (Stuckenberg 1996b, Figs 21, 22). 8. Aedeagus lacking lateral projections. In Vermipardus the aedeagus is a curved tube, this evidently being the plesiomorphic form. In species of Leptynoma, Vermilynx, the pilosula group, and the canadensis group (figs 51, 55, 59, p), the aedeagus appears trifid because of two lateral extensions or arms; these do not include the lumen of the aedeagus. In species of the cylindrica group, only funebris and pallida have any structural development which may be comparable, in the form of dorsally directed flanges on each side of the aedeagus (figs 31, 41, p). As the trifid condition is so widespread, the lack of these lateral arms must be a reversal. 9. Mediodorsal projection present on upper margins of synsternite. This structural elaboration is apomorphically developed only in the species of the canadensis group (Stuckenberg 1960,. 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 Zoologisches Forschungsinstitut und Museum Alexander Koenig. Bonn : Das Forschungsinstitut
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Keywords: ., bookcentury1900, bookcoll, booksubjectbiology, booksubjectzoology