Dermacentor Tick on Microscopy It’s tick season so your friendly neighborhood micro lab might be asked to identify them: A Dermacentor spp. tick female (small shield). Likely D. variabilis, Rocky Mt wood tick or D. andersonii, dog tick. Rich Davis, PhD, D(ABMM), MLS @richdavisphd #Dermacentor #Tick #Microscopy #clinical #microbiology #parasite