| ixodes | (n) type genus of the family Ixodidae, Syn. genus Ixodes |
| ixodes dammini | (n) a northeastern tick now recognized as same species as Ixodes scapularis, Syn. deer tick |
| ixodes dentatus | (n) usually does not bite humans; transmits Lyme disease spirochete to cottontail rabbits and wood rats |
| ixodes neotomae | (n) a tick that usually does not bite humans; transmits Lyme disease spirochete to dusky-footed wood rats |
| ixodes pacificus | (n) a tick that feeds on dusky-footed wood rat and bites humans; principal vector for Lyme disease in western United States especially northern California, Syn. western black-legged tick |
| ixodes persulcatus | (n) bites humans; a vector for Lyme disease spirochete |
| ixodes scapularis | (n) parasitic on mice of genus Peromyscus and bites humans; principal vector for Lyme disease in eastern United States (especially New England); northern form was for a time known as Ixodes dammini (deer tick), Syn. black-legged tick |
| ixodes spinipalpis | (n) usually does not bite humans; transmits Lyme disease spirochete to cottontail rabbits and wood rats |