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An investigation into the toxic principle in eggs of the tick Amblyomma hebraeum
1981
Amblyomma hebraeum, purification procedure used to obtain pure toxic components of tick eggs, characterization of toxin structure, histopathologic lesions observed in guinea pigs inoculated with egg extract or purified toxin, lesions in guinea pigs inoculated with crude egg extracts of 3 other ticks were histopathologically similar
Mostrar más [+] Menos [-]Ixodes (Afrixodes) matopi n. sp. (Acarina: Ixodidae): A tick found aggregating on pre-orbital gland scent marks of the klipspringer in Zimbabwe
1981
Spickett, A.M. | Keirans, J.E. | Norval, R.A.I. | Clifford, C.M.
Ixodes (Afrixodes) matopi n. sp. is described from females and males collected off twigs bearing deposits of intraspecific communication marks secreted by the pre-orbital glands of the klipspringer Oreotragus oreotragus and from laboratory-reared immature specimens. One female was also found on a goat. The 4 collections were all from Zimbabwe, 3 of them from Matabeleland South Province and the fourth from Inyanga District, Zimbabwe.
Mostrar más [+] Menos [-]Rhipicephalus zambeziensis sp. nov., a new tick from eastern and southern Africa, together with a redescription of Rhipicephalus appendiculatus Neumann, 1901 (Acarina, Ixodidae)
1981
Walker, J.B. | Norval, R.A.I. | Corwin, M.D.
Rhipicephalus zambeziensis n. sp., all stages of life cycle compared with life cycle of R. appendiculatus, redescription of R. appendiculatus, attempts to cross breed these 2 species in laboratory were unsuccessful thus validating their taxonomic separation, the 2 species can live sympatrically
Mostrar más [+] Menos [-]Ecological studies on Ixodes (Afrixodes) matopi Spickett, Keirans, Norval & Clifford, 1981 (Acarina: Ixodidae)
1981
Colborne, J. | Norval, R.A.I. | Spickett, A.M.
Ixodes matopi, ecological study (microclimatic temperatures and relative humidities recorded in 4 habitats; seasonal and daily activity patterns; distribution of larvae, nymphs, and adults in different habitats)
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