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This scanning electron microscopy study revealed that the egg of Argas persicus was covered with chorion which appeared as a wrinkled layer containing regions of three textures. The first had elevated parts of slightly rough surface. The second had irregular smooth elevations; each carried numerous parallel horizontal foldings with vertical ridges.
The last region had rough surface with irregularly shaped projections. Following the removal of the chorion, shell was observed to have one polar micropyle and numerous slit like openings. Investigation of larvae revealed extensively folded integument of idiosoma and spherical or elongated tubercles on dorsal plate. Mouth enclosed between ventral hypostome and two dorsal chelicerae. Hypostome carried four longitudinal rows of conical denticles.
Each chelicera was made up of two segments; the basal one appeared as a pocket for the distal one. Haller's organ consisted of an anterior pit containing seven sensilla and a posterior capsule with four apertures. Distribution of chemo- and mechano-sensilla on the body was examined.
Measurements of whole body, idiosoma, dorsal plate, capitulum, hypostome, palp and different types of sensilla both on the body and Haller's organ are also presented.
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Similar articles Morphology and structural organization of Haller's organ during postembryonic development of Argas Persicargas walkerae Ixodoidea: Argasidae. Gothe R, et al. Exp Appl Acarol. PMID: The Haller's organ roof and anterior pit setae of Argas ticks Ixodoidea: Argasidae. Subgenera Secretargas and Ogadenus. Hoogstraal H, et al. J Parasitol.
The subgenus Persicargas Ixodoidea: Argasidae: Argas. Haller's organ roof and anterior pit setae in Persicargas and Microargas. J Med Entomol. Observations on the subgenus Argas Ixodoidea: Argasidae: Argas. Haller's organ roof and anterior pit setae. Clifford CM, et al. Show more similar articles See all similar articles. References Vet Parasitol.
MeSH terms Animals Actions. Female Actions. Microscopy, Electron, Scanning Actions. Surface Properties Actions. Full-text links [x] Springer. Copy Download.
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The fowl tick, Argas persicus , is found worldwide in tropical and subtropical countries and is the vector of Borrelia anserina avian spirochetosis, see Avian Spirochetosis and the rickettsia Aegyptianella pullorum , which causes fowl disease aegyptianellosis, see Aegyptianellosis in Poultry. These ticks are particularly active in poultry houses during warm, dry weather. All stages may be found hiding in cracks and crevices during the day. Larvae can be found on the birds, because they remain attached and feed for 2—7 days.
Argas persicus , also known as fowl tick or poultry tick , is a small soft-bodied tick that is found primarily on domestic fowl such as chickens, ducks, and geese. It was first recorded by Lorenz Oken in in Mianeh , Persia ,   and named Rhynochoprion persicum. Argas persicus appears yellowish-brown when starved and slatey-blue when engorged. They are found on an animal host, in cracks and crevices of buildings or in nests.