First documentation of a jaguar (Panthera onca) with otitis caused by Otobius megnini (Dugés 1883).

Otobius megnini (spinose ear tick) is a cosmopolitan soft tick that parasitizes domestic and wild mammals, as well as humans. The larval and nymphal stages are common parasites that feed on blood inside the canal ears of hosts, while adults are nonfeeding and live off the host. Different nymphal stages of O.

WITHDRAWN: First morphological and molecular characterisation of Spirometra mansoni (Cestoda, Diphyllobothriidae) in a domestic cat from Veracruz, Mexico.

This article has been withdrawn: please see Elsevier Policy on Article Withdrawal (https://www.elsevier.com/about/policies/article-withdrawal).

First documentation of dose response of Amblyomma cf. parvum population infesting dogs to amitraz, coumaphos, and cypermethrin.

Amblyomma cf. parvum (Ixodida: Ixodidae) is an ectoparasite of domestic animals and wildlife on the American continent. There is little information on the efficacy of acaricides for the control of this tick species in domestic animals.

Monthly fluctuation of parasitism by adult Ixodes keiransi ticks in dogs from Yucatán, Mexico.

The monthly fluctuation of adult Ixodes keiransi in dogs from two cattle farms in southeastern Mexico was determined. In ranch 1 (R1), 6-7 mixed breed dogs from six months to five years of age; while in ranch 2 (R2), 7-8 mixed breed dogs from one to four years of age, were followed. All dogs were monthly inspected for tick infestation through one year.