The female is around 1mm, and the male is smaller at around 0.5mm in length. The thorax is rather short, and a reddy-brown in colour.
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''T. penetrans'' is a parasite of the family ''Hectopsyllidae''. The female is around 1mm, and the male is smaller at around 0.5mm in length. The thorax is rather short, and a reddy-brown in colour.