![]() ![]() ![]() Tick Importance and transmission: The ticks of veterinary importance and the different routes of transmission, including transovarial, transtadial and intrastadial transmission are described. The identification of ticks up to species level is much more complicated and requires more expertise. The various genera of hard ticks can easily be differentiated by a set of features unique to each genus: mouthparts, basis capituli, scutum, eyes, festoons, adanal, subanal and accessory anal plates, coxae and anal groove. The identification of ticks is mainly based on morphological features although the hosts on which they occur, the locality where they were found and their seasonal activity is taken into consideration. Identification and differential diagnosis The study of the seasonal occurrence of ticks is of major importance in the control of ticks and tick-borne diseases. Most ticks show seasonality in their life cycles adult ticks will become active and feed at the start of the rainy season. In soft ticks or Argasidae, the mouthparts are recessed ventrally except in the larval stage. ![]() Hard ticks or Ixodidae are characterized by the presence of a hard scutum or shield and mouthparts projecting forward which makes them visible from the dorsal side. There are three families of ticks although one family, Nuttallielidae comprises only one species. ![]()
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