Clinical Sciences Question of the day

A young female mixed breed dog, who was rescued the day before presentation, is seen for a general health exam. Upon examination, the dog is mildly pruritic, and has mild to moderate alopecia.

Erythema and lichenification are present predominantly affecting the face and the dorsal aspect of the trunk. Marked seborrhea is also present on the dorsum. Multiple skin scrapings reveal the ectoparasites seen in the image below.

Which one of the following choices correctly identifies these parasites?

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