Class Arachnida Ticks Hard Soft Distribution Medical Importance

Class: Arachnida • Ticks ( Hard & Soft) Distribution:

Medical Importance of Hard & Soft Tick By its own • Mechanical injury • Tick paralysis • Otoacariasis • Anaemia

Medical Importance of Hard Tick Transmit Rickettsial diseases Rickettsia rickettsii Rickettsia conori Rockymountain spotted fever Rickettsia burneti Boutonneuse fever Q fever Rickettsia australis Queensland fever

Medical Importance of Hard Tick Transmit other different diseases Bacterial Viral Spirocheatal Francisella tularensis *Tularaemia protozoal *Colorado tick fever. Borrelia Babesia *Tick-born encephalitis. burgdorferi bigemina *Hemorrhagic fever *Lyme *Babesiosis disease (Texas cattle fever)

Medical Importance of Soft Tick transmit Borrelia duttoni Endemic relapsing fever Rickettsia burneti Q fever

Morphology of Hard Tick

Protruding capitulum Eye Scutum Festoons Male hard tick Female hard tick

Genital opening Respiratory spiracles Anus Ventral surface of hard tick

Chelicerae (mandibles) Pedipalp Hypostome (4 segment) Capitulum of Tick

Protruding capitulum Scutum Festoons Larva of hard tick

Morphology of Soft Tick

Capitulum Genital opening Respiratory spiracles Soft tick (Dorsal view) Anus Soft tick (ventral view)

Capitulum Larva of Soft tick

What are we going to see? & Key of differentiation