six genera and 27 species of hard ticks ( ixodidae ) currently are recognized in the united states east of the mississippi river as follows : amblyomma ( 4 species ) , boophilus ( 1 ) , dermacentor ( 3 ) , haemaphysalis ( 2 ) , ixodes ( 16 ) , and rhipicephalus ( 1 ) .
C0041703
united states
C0026221
mississippi