. Bee flies of the world: the genera of the family Bombyliidae. Bombyliidae; Parasites. BASAL 'S-;;.. Text-Figure 13.—Male genitalia of Poecilanthrax californicus Cole: A, surface levels; b, second level, with the epandrium removed. orifice. The ventral part most in evidence consists of a pair of basistyli between which ventrobasally may some- tinies be seen a more or less rudimentary ninth sternum. In most bombyliids there is a movable structure at- tached at the apex of the basistylus, which is the telo- mere of Snodgrass, the beaked apical part of Hesse, and the dististylus of Mau
. Bee flies of the world: the genera of the family Bombyliidae. Bombyliidae; Parasites. BASAL 'S-;;.. Text-Figure 13.—Male genitalia of Poecilanthrax californicus Cole: A, surface levels; b, second level, with the epandrium removed. orifice. The ventral part most in evidence consists of a pair of basistyli between which ventrobasally may some- tinies be seen a more or less rudimentary ninth sternum. In most bombyliids there is a movable structure at- tached at the apex of the basistylus, which is the telo- mere of Snodgrass, the beaked apical part of Hesse, and the dististylus of Maughan and Cole; the latter term is adopted here. It may be noted that the base of the basi- stylus may itself be produced into a lobe or process. In the Gerontinae this dististylus is more or less im- movable and lobelike. The dististylus takes on almost an endless variety of complex shapes and forms, short and wide, or oval, elongate, etc., and as Hesse points out, flattened, hollowed, or convex. Found within the pair of basistyli is the aedeagal apparatus or aedeagal complex of Hesse; it is attached to the basistylar shell by membranes and also by the ramus, the ramal element from each side generally is. 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 Hull, Frank M. (Frank Montgomery), 1901-1982. Washington, Smithsonian Institution Press
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Keywords: ., bookcentury1900, bookcollectionbiodiversit, booksubjectparasites
