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{{Taxobox

{{Taxobox

|name              = Psoroptes ovis

|name              = Psoroptes

|kingdom            =  

|kingdom            = Animalia

|phylum            =  

|phylum            = [[:Category:Arthropods|Arthropoda]]

|class              = Arachnida

|class              = [[:Category:Arachnida|Arachnida]]

|sub-class          =  

|sub-class          = Acari

|order              = Acariformes

|order              = Sarcoptiformes

|super-family      =

|super-family      =

|family            = Psoroptidae

|family            = Psoroptidae

|sub-family        =

|sub-family        =

|genus              =  

|genus              = Psoroptes

|species            =

|species            =''Psoroptes ovis

}}  

}}  

{| cellpadding="10" cellspacing="0" border="1"

==Introduction==

''Psoroptes ovis'' are astigmatic, non-burrowing mites of the class ''Arachnida''. They are around 750μm (0.75mm) in length, and oval shaped. They are extremely pruritic, and cause a contagious skin disease, [[Psoroptic Mange]], as well as a loss in body condition. They also cause the host to rub and bite the infected areas, resulting in further trauma.

| '''Scab mite

|-

 

| '''Skin'''; particularly on legs, feet, and the base of the tail.

''Psoroptes ovis'' are astigmatic, non-burrowing mites around 750μm (0.75mm) in length, and oval shaped. They are extremely pruritic, and cause a contagious skin disease, as well as a loss in body condition.  They also cause the host to rub and bite the infected areas, resulting in further trauma.

This mite is found worldwide, but has been '''eradicated from Australia and New Zealand'''.  

==Hosts==

==Hosts==

They have three-jointed pedicles, each with suckers on the ends; also known as '''pulvilli'''.

They have three-jointed pedicles, each with suckers on the ends; also known as '''pulvilli'''.

The legs of adult females are all approximately the same length.  However, in the males the fourth pair of legs is significantly shorter than the rest. The males also tend to be smaller then the females.

The legs of adult females are all approximately the same length.  However, in the males the fourth pair of legs is significantly shorter than the rest. The males also tend to be smaller then the females.

The males may also be identified via copulatory suckers and paired posterior lobes.

The males may also be identified via copulatory suckers and paired posterior lobes.

The males attach to deutonymphs (second moult after larval stage) in a process called '''copula'''. The males then remain in copula until the females moult for the final time. Copulation then occurs.

The males attach to female tritonymphs, sometimes protonymphs, in a process called '''copula'''. The males then remain in copula until the females moult for the final time. Copulation then occurs.

==Life Cycle==

==Life Cycle==

The eggs are relatively large, and within around 2 days transform into a '''hexapod larva'''.  The larvae then moult into a '''protonymph''', which then subsequently moults into a '''tritonymph'''. Finally the tritonymph moults to become a mature adult.

The life cycle is confined to the skin surface. The eggs are relatively large, and within around 2 days transform into a '''hexapod larva'''.  The larvae then moult into a '''protonymph''', which then subsequently moults into a '''tritonymph'''. Finally the tritonymph moults to become a mature adult.  

 

 

 

 

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