Nymph-stage Ixodes scapularis (a.k.a. blacklegged or deer tick) Growth Comparison
Nymphs are active May-August, and are most commonly found in moist
leaf litter in wooded areas, or at the edge of wooded areas. The
eight-legged, pin-head sized nymph typically attaches to smaller mammals
such as mice, voles, and chipmunks, requiring 3-4 days to fully
engorge. Nymphs also readily attach to and blood feed on humans, cats
and dogs. Once fed, they drop off into rodent burrows or leaf litter in
animal bedding areas where they molt and emerge as adults in the fall.