Ticks

Front 1

Metastigmata

Back 1

(ticks) fusion of head and thorax into the abdomen, 8 legs, stage hatching from eggs has 6 legs, 2 distinct types, all are bloodsucking parasites, hypostome has backward projecting teeth, chelicerae are armed with movable denticles

Front 2

Ixodidae

Back 2

Hard ticks, anterior protruding mouthparts

Front 3

Argasidae

Back 3

soft ticks, mouthparts tend to be ventral

Front 4

Argas

Back 4

soft tick, found on the gulf coast and the Mexican border, transmits tick paralysis, Borrelia anserina and Aegyptianella

Front 5

Tick paralysis

Back 5

infestation with larvae from Argas persicus results in a flaccid paralysis

Front 6

Borrelia anserina

Back 6

(avian spirochetosis) transmission by Argas species in S America

Front 7

Aegyptianella pullorum

Back 7

rickettsial agent spread by Argas in the Old world tropics

Front 8

Ornithodoros

Back 8

soft tick differs from Argas in that it is more globular, lacks a sharp margin, Vectors and reservoirs of relapsing fever spirochetes (Borrelia recurrentis)

Front 9

Ornithodoros hermsi

Back 9

Rocky Mountain and Pacific Coast, found in rodent burrows and rodent infested buildings (soft tick)

Front 10

Ornithodoros coriaceus

Back 10

California and Oregon, attack Deer and Cattle from their bedding areas (soft tick)

Front 11

Otobius megnini

Back 11

(spinose ear tick), soft tick parasitize the ear canals of cattle, differs from Argas and Ornithodoros in that it is a one host tick and only lays one clutch of eggs

Front 12

Ixodes species

Back 12

anal groove forms an arch anterior of the anus, no eyes, festoons or scutal ornamentation

Front 13

Ixodes scapularis

Back 13

commonly known as the deer tick or blacklegged tick, lyme disease vector on the east coast

Front 14

Dermacentor variabilis

Back 14

American dog tick, scutum is ornamented, larvae and nymphs feed on small rodents, adults feed on humans, dogs, horses, cattle and wildlife

Front 15

Haemaphysalis leporispalustris

Back 15

rabbit tick, feed on ground nesting birds and small mammals

Front 16

Dermacentor andersoni

Back 16

rocky mountain wood tick, transmits RMSF, tularemia, Colorado tick fever, Q fever and tick paralysis

Front 17

Amblyomma americanum

Back 17

lone star tick, vectors RMSF, ehrlichia chaffeensis, E. ewingii and Cytauxzoon felis, female has single spot on her back, Texas to Vermont, 3 host tick, happily feeds on dogs and people

Front 18

Amblyomma maculatum

Back 18

gulf coast tick, 3 host tick, very aggressive, vector of Hepatozoon canis, has expanding range

Front 19

Amblyomma cajennense

Back 19

suspected vector of Theileria equi (hard tick)

Front 20

RMSF

Back 20

best known Rickettsiaceae, vectored by Dermacentor and Amblyoma species, found in the Tennessee area not the Rocky Mountains, transmitted from rodent reservoir to dogs and humans, dogs present with fever, lethargy, vomiting and anorexia, may lead to ocular lesions, bleeding diathesis, joint pain and neurologic abnormalities

Front 21

Metastigmata

Back 21

(ticks) fusion of head and thorax into the abdomen, 8 legs, stage hatching from eggs has 6 legs, 2 distinct types, all are bloodsucking parasites, hypostome has backward projecting teeth, chelicerae are armed with movable denticles

Front 22

Ixodidae

Back 22

Hard ticks, anterior protruding mouthparts

Front 23

Argasidae

Back 23

soft ticks, mouthparts tend to be ventral

Front 24

Argas

Back 24

soft tick, found on the gulf coast and the Mexican border, transmits tick paralysis, Borrelia anserina and Aegyptianella

Front 25

Tick paralysis

Back 25

infestation with larvae from Argas persicus results in a flaccid paralysis

Front 26

Borrelia anserina

Back 26

(avian spirochetosis) transmission by Argas species in S America

Front 27

Aegyptianella pullorum

Back 27

rickettsial agent spread by Argas in the Old world tropics

Front 28

Ornithodoros

Back 28

soft tick differs from Argas in that it is more globular, lacks a sharp margin, Vectors and reservoirs of relapsing fever spirochetes (Borrelia recurrentis)

Front 29

Ornithodoros hermsi

Back 29

Rocky Mountain and Pacific Coast, found in rodent burrows and rodent infested buildings (soft tick)

Front 30

Ornithodoros coriaceus

Back 30

California and Oregon, attack Deer and Cattle from their bedding areas (soft tick)

Front 31

Otobius megnini

Back 31

(spinose ear tick), soft tick parasitize the ear canals of cattle, differs from Argas and Ornithodoros in that it is a one host tick and only lays one clutch of eggs

Front 32

Ixodes species

Back 32

anal groove forms an arch anterior of the anus, no eyes, festoons or scutal ornamentation

Front 33

Ixodes scapularis

Back 33

commonly known as the deer tick or blacklegged tick, lyme disease vector on the east coast

Front 34

Dermacentor variabilis

Back 34

American dog tick, scutum is ornamented, larvae and nymphs feed on small rodents, adults feed on humans, dogs, horses, cattle and wildlife

Front 35

Haemaphysalis leporispalustris

Back 35

rabbit tick, feed on ground nesting birds and small mammals (hard tick)

Front 36

Dermacentor andersoni

Back 36

rocky mountain wood tick, transmits RMSF, tularemia, Colorado tick fever, Q fever and tick paralysis

Front 37

Amblyomma americanum

Back 37

lone star tick, vectors RMSF, ehrlichia chaffeensis, E. ewingii and Cytauxzoon felis, female has single spot on her back, Texas to Vermont, 3 host tick, happily feeds on dogs and people

Front 38

Amblyomma maculatum

Back 38

gulf coast tick, 3 host tick, very aggressive, vector of Hepatozoon canis, has expanding range

Front 39

Amblyomma cajennense

Back 39

suspected vector of Theileria equi

Front 40

RMSF

Back 40

best known Rickettsiaceae, vectored by Dermacentor species, found in the Tennessee area not the Rocky Mountains, transmitted from rodent reservoir to dogs and humans, dogs present with fever, lethargy, vomiting and anorexia, may lead to ocular lesions, bleeding diathesis, joint pain and neurologic abnormalities