. Annals of tropical medicine and parasitology. Parasites. i77 coating of viscous matter by which it readily adheres to the surface upon which it may fall; five hours after it has been laid it assumes its normal form and colour, which may be described as follows: — Form very elongate, dark brown, shining, with longitudinal black wavy lines, which in certain lights give the periphery of the egg a faintly rugose appearance; these black lines are slightly raised and are joined by slender cross-lines so that a faint but rather coarse reticulation is formed. The transverse lines are, however, very


. Annals of tropical medicine and parasitology. Parasites. i77 coating of viscous matter by which it readily adheres to the surface upon which it may fall; five hours after it has been laid it assumes its normal form and colour, which may be described as follows: — Form very elongate, dark brown, shining, with longitudinal black wavy lines, which in certain lights give the periphery of the egg a faintly rugose appearance; these black lines are slightly raised and are joined by slender cross-lines so that a faint but rather coarse reticulation is formed. The transverse lines are, however, very difficult to trace unless they are illuminated by a strong beam of FlG. 18.—External genitalia of Phlebototnus papatasii, , penis. The incubation period lasts for about nine days; but unless kept in a moistened atmosphere the eggs will not hatch. LARVA.—First instar (PI. V, fig. 8). Cylindrical and distinctly caterpillar-like in its general form; head black; body white or ochreous white; caudal bristles, long, black. Head (fig. 19) very broadly pyriform ; frontal hairs two in number; simple; dorsally there are three similar hairs on each side; one arising from the mid-region of the mandibles, one near the base; and a slightly. 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 Liverpool School of Tropical Medicine. Liverpool University Press [etc. ]


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Keywords: ., bookcentury1900, bookdecade1900, booksubjectparasites, bookyear19