#arachnid__arachnoid  air-breathing arthropods characterized by simple eyes and four pairs of legs
  supertype:  arthropod  invertebrate having jointed limbs and a segmented body with an exoskeleton made of chitin
  member of:  class_Arachnida
  subtype:  harvestman__daddy_longlegs__Phalangium_opilio  spider-like arachnid with a small rounded body and very long thin legs
  subtype:  scorpion  arachnid of warm dry regions having a long segmented tail ending in a venomous sting
  subtype:  false_scorpion__falsescorpion__pseudoscorpion  small nonvenomous arachnid resembling a tailless scorpion
     subtype:  book_scorpion__Chelifer_cancroides  minute arachnid sometimes found in old papers
  subtype:  whipscorpion__whip_scorpion  nonvenomous arachnid that resembles a scorpion and that has a long thin stingless tail
     subtype:  vinegarroon__mastigoproctusgiganteu  large whipscorpion of Mexico and southern United States that emits a vinegary odor when alarmed
  subtype:  spider  predatory arachnid that usually has silk-spinning organs at the back end of the body; they spin silk to make cocoons for eggs or traps for prey
     subtype:  black_and_gold_garden_spider__Argiope_aurantia  a widely distributed North American garden spider
     subtype:  barn_spider__Araneus_cavaticus  an orange and tan spider with darkly banded legs that spins an orb web daily; "the barn spider was made famous in E. B. White's book `Charlotte's Web'"
     subtype:  garden_spider__Aranea_diademata  a common European garden spider
     subtype:  comb-footed_spider__theridiid  spider having a comb-like row of bristles on each hind foot
     subtype:  black_widow__blackwidow__Latrodectus_mactans  venomous New World spider; the female is black with an hourglass-shaped red mark on the underside of the abdomen
     subtype:  tarantula  large hairy tropical spider that can inflict painful but not highly venomous bites
     subtype:  wolf_spider__hunting_spider__huntingspider  ground spider that hunts its prey instead of using a web
        subtype:  European_wolf_spider__tarantula__Lycosa_tarentula  large southern European spider once thought to be the cause of tarantism (uncontrollable bodily movement)
     subtype:  trap-door_spider  American spider that constructs a silk-lined nest with a hinged lid
  subtype:  acarine  mite or tick
     subtype:  tick  any of two families of small parasitic arachnids with barbed proboscis; feed on blood of warm-blooded animals
        subtype:  hard_tick__ixodid  ticks having a hard shield on the back and mouth parts that project from the head
           subtype:  Ixodes_dammini__deer_tick  a northeastern tick now recognized as same species as Ixodes scapularis
           subtype:  Ixodes_neotomae  a tick that usually does not bite humans; transmits Lyme disease spirochete to dusky-footed woodrats
           subtype:  Ixodes_pacificus__western_black-legged_tick  feeds on dusky-footed woodrat and bites humans; principal vector for Lyme disease in western United States especially northern California
           subtype:  Ixodes_scapularis__black-legged_tick  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)
           subtype:  sheeptick__ixodesricinu  parasitic on sheep and cattle as well as humans; can transmit looping ill in sheep (acute viral disease of the nervous system); a vector for Lyme disease spirochete
           subtype:  Ixodes_persulcatus  bites humans; a vector for Lyme disease spirochete
           subtype:  Ixodes_dentatus  usually does not bite humans; transmits Lyme disease spirochete to cottontail rabbits and woodrats
           subtype:  Ixodes_spinipalpis  usually does not bite humans; transmits Lyme disease spirochete to cottontail rabbits and wood rats
           subtype:  wood_tick__American_dog_tick__Dermacentor_variabilis  common tick that can transmit Rocky Mountain spotted fever and tularemia
        subtype:  soft_tick__argasid  tick lacking a dorsal shield and having mouth parts on the under side of the head
     subtype:  mite  any of numerous very small to minute arachnids often infesting animals or plants or stored foods
        subtype:  acarid  very small free-living arachnid that is parasitic on animals or plants; related to ticks
        subtype:  trombidiid  mite that in all stages feeds on other arthropods
        subtype:  trombiculiid  mite that as nymph and adult feeds on early stages of small arthropods but whose larvae are parasitic on terrestrial vertebrates
           subtype:  harvest_mite__harvestmite__jigger__redbug  larval mite that sucks the blood of vertebrates including human beings causing intense irritation
        subtype:  acarus  a mite of the genus Acarus
        subtype:  itch_mite__sarcoptid  whitish mites that attack the skin of humans and other animals; "itch mites cause scabies"
        subtype:  spider_mite__tetranychid  web-spinning mite that attacks garden plants and fruit trees
           subtype:  red_spider_mite__red_spider__redspider__Panonychus_ulmi  small web-spinning mite; a serious orchard pest

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