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1a.) Coxae I lacks distinct spurs
7
1b.) Coxae I has 1 or 2 spurs
2
2.) Palp articles free (division visible)
3
3a.) Median plate almost as wide as long
3b.) Median plate length 1.5x width
4
4a.) Tarsus I with marked hump near tip
4b.) Tarsus I tapers and lacks hump near tip
5
5.) Coxae I with external and internal spurs
6
6.) Internal spur of coxae I very long
Ixodes ricinus / Ixodes persulcatus
7.) Palps relatively large; as long as width of basis; dorsal basis appears rectangular in shape. Coxae I has a short internal spur
