Ixodoidea

This photograph depicts a dorsal view of a male Gulf Coast tick, Amblyomma maculatum.This tick specie is a known vector for Rickettsial organisms, Rickettsia parkeri, and Ehrlichia ruminantium, formerly Cowdria ruminantium. R. parkeri is a member of the spotted fever group of rickettsial diseases affecting humans, while E. ruminantium causes heartwater disease, an infectious, noncontagious, tick-borne disease of domestic and wild ruminants, including cattle, sheep, goats, antelope, and buffalo.Created: 2008

This photograph depicts a dorsal view of a male Gulf Coast tick, Amblyomma maculatum.This tick specie is a known vector for Rickettsial organisms, Rickettsia parkeri, and Ehrlichia ruminantium, formerly Cowdria ruminantium. R. parkeri is a member of the spotted fever group of rickettsial diseases affecting humans, while E. ruminantium causes heartwater disease, an infectious, noncontagious, tick-borne disease of domestic and wild ruminants, including cattle, sheep, goats, antelope, and buffalo.Created: 2008

This photograph depicts a dorsal view of a female Gulf Coast tick, Amblyomma maculatum.This tick specie is a known vector for Rickettsial organisms, Rickettsia parkeri, and Ehrlichia ruminantium, formerly Cowdria ruminantium. R. parkeri is a member of the spotted fever group of rickettsial diseases affecting humans, while E. ruminantium causes heartwater disease, an infectious, noncontagious, tick-borne disease of domestic and wild ruminants, including cattle, sheep, goats, antelope, and buffalo.Created: 2008

This photograph depicts a dorsal view of a female Gulf Coast tick, Amblyomma maculatum.This tick specie is a known vector for Rickettsial organisms, Rickettsia parkeri, and Ehrlichia ruminantium, formerly Cowdria ruminantium. R. parkeri is a member of the spotted fever group of rickettsial diseases affecting humans, while E. ruminantium causes heartwater disease, an infectious, noncontagious, tick-borne disease of domestic and wild ruminants, including cattle, sheep, goats, antelope, and buffalo.Created: 2008

This drawing depicts an Ixodidae hard tick from the dorsal and ventral perspectives revealing its morphologic features.Created: 1976

This drawing depicts two female Ixodidae hard ticks from the ventral perspective one unfed (Lt), and one engorged (Rt).Created: 1976

This drawing depicts a male and female Ixodidae hard tick from the dorsal perspective; the female is unfed.Created: 1976

This drawing compares the absence or presence of a laterally extended basis capituli in four genera of Ixodidae ticks.Created: 1976

This drawing depicts the differently shaped 2nd palpal segments found in various genera of Ixodidae hard ticks.Created: 1976

This drawing depicts the relationship between the palpus and the basis capituli amongst various genera of Ixodidae ticks.Created: 1976

This drawing depicts the locations of an Ixodidae family tick’s anal groove, and if one is indeed present, or absent.Created: 1976

This drawing compares the location of a Ixodidae hard tick’s capitulum with that of an Argasidae soft tick.Created: 1976

This image depicts the morphologic differences seen between the Ixodidae hard ticks, and the Argasidae soft ticks.Created: 1976

This illustration depicts the appearance of an unfed female Ixodidae hard tick compared to an engorged female.Created: 1976

This drawing depicts the morphologic differences seen in the scutum of a male hard tick, Ixodidae with that of a female.Created: 1976

This is a member of the Ixodidae family of hard ticks, a North American tick with it anteriorly projecting mouth parts.Created: 1975

This illustration depicts a dorsal view of a female hard, or Ixodidae American dog tick, Dermacentor variabilis.Created: 1972

This illustration shows an Ornithodoros soft tick from the ventral view with its toothed hypostome and mammillated integument.Created: 1976

This illustration depicts an enlarged portion of the integumentary structure found on the dorsum of an Ornithodoros soft tick.Created: 1976

This ventral view illustration depicts a female Rhipicephalus tick showing its unridged palpi, and deeply indented fore coxae.Created: 1976

This photograph depicts an anterior, or head-on view of an engorged female "lone star tick", Amblyomma americanum. Note a number of round, amber-colored eggs that after just having been laid, became attached to the anterior abdomen adjacent to the female’s scutum. To view additional images related to this tick specie, see PHIL 4407, 8676 through 8680, and 8682 through 8685.Created: 2006

This photograph depicts a dorsal view of an engorged female "lone star tick", Amblyomma americanum. Note a number of round, amber-colored eggs showing from beneath the head region, which were just laid by this female. An engorged female of this species can lay approximately 2000-2500 eggs. To view additional images related to this tick specie, see PHIL 4407, 8676, 8677, and 8679 through 8685.Created: 2006

This photograph depicted a dorsal view of an adult female western blacklegged tick, Ixodes pacificus, which has been shown to transmit Borrelia burgdorferi, the agent of Lyme disease, and Anaplasma phagocytophilum, the agent of human granulocytic anaplasmosis (HGA), which was previously known as human granulocytic ehrlichiosis (HGE), in the western United States. The small scutum, or tough, chitinous dorsal abdominal plate, does not cover its entire abdomen, thereby allowing the abdomen to expand many times when this tick ingests its blood meal, and which identified this specimen as a female. The four pairs of jointed legs, places these ticks in the Phylum Arthropoda, and the Class Arachnida.Created: 2006

This photograph depicted a dorsal view of an adult female western blacklegged tick, Ixodes pacificus, which has been shown to transmit Borrelia burgdorferi, the agent of Lyme disease, and Anaplasma phagocytophilum, the agent of human granulocytic anaplasmosis (HGA), which was previously known as human granulocytic ehrlichiosis (HGE), in the western United States. The small scutum, or tough, chitinous dorsal abdominal plate, does not cover its entire abdomen, thereby allowing the abdomen to expand many times when this tick ingests its blood meal, and which identified this specimen as a female. The four pairs of jointed legs, places these ticks in the Phylum Arthropoda, and the Class Arachnida.Created: 2006