Psoroptes ovis
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- Adult females are large mites at 750μm in length
- Males identified by copulatory suckers and paired posterior lobes
- Males attach to deutonymphs (second moult after larval stage) in a process called copula
- Males remain in copula until females moult for the last time
- Copulation occurs
- Life cycle last 14 days
- Transmitted by direct contact between sheep
- Indirect transmission can also occur