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Hard Ticks (Ticks In Colorado) Tag

Ixodes soricis

[vc_row][vc_column width="2/3"][vc_column_text] Ixodes soricis Distribution This tick occurs in AZ, CA, CO, NM, OR, UT, and WA in the United States; in Canada, British Columbia. Hosts This tick is primarily an ectoparasite of shrews, including at least eight species of Sorex. It also parasitizes other insectivores, such as the broad-footed mole; Townsend’s mole; the shrew mole; and some rodents, such as the northern pocket gopher; graytailed vole; Townsend’s vole; and North American deermouse. There is also a record of it biting a human. Vector Status No reports of medical or veterinary importance for this species has been found to date. Resources H Joel Hutcheson, James W Mertins, Boris C Kondratieff, Monica M White, Ticks and Tick-Borne Diseases of Colorado, Including New State Records for Argas radiatus (Ixodida: Argasidae) and Ixodes brunneus (Ixodida: Ixodidae), Journal of Medical Entomology, , tjaa232, https://doi.org/10.1093/jme/tjaa232[/vc_column_text][/vc_column][vc_column width="1/3"][vc_single_image...

Ixodes marmotae

[vc_row][vc_column width="2/3"][vc_column_text] Ixodes marmotae Distribution Distribution for this species includes, in the United States, CO, ID, MT, OR, UT, WA, and WY, and in Canada, British Columbia. Hosts Hosts are rodents, including marmots, porcupines, woodrats, and ground squirrels. Vector Status No reported medical or veterinary importance for this tick species has been found to date. Resources H Joel Hutcheson, James W Mertins, Boris C Kondratieff, Monica M White, Ticks and Tick-Borne Diseases of Colorado, Including New State Records for Argas radiatus (Ixodida: Argasidae) and Ixodes brunneus (Ixodida: Ixodidae), Journal of Medical Entomology, tjaa232, https://doi.org/10.1093/jme/tjaa232[/vc_column_text][/vc_column][vc_column width="1/3"][vc_single_image image="6175" img_size="" add_caption="yes" onclick="link_image"][/vc_column][/vc_row]...

Ixodes woodi

[vc_row][vc_column width="2/3"][vc_column_text] Ixodes woodi The distribution of I. woodi in the USA includes AL, AZ, CA, CO, ID, IN, KS, NC, NM, NV, OK, OR, SC, TX, UT, and WY; in Mexico, the states of Coahuila, Morelos, and Tamaulipas. Hosts Hosts are primarily woodrats, but also other rodents, birds, shrews, and incidentally, humans. Vector Status DNA of the agent of human granulocytic anaplasmosis was isolated in Ixodes woodi ticks in California; although no vector status was demonstrated, it seems likely that this tick is involved in a zoonotic cycle of the agent among woodrats. Resources H Joel Hutcheson, James W Mertins, Boris C Kondratieff, Monica M White, Ticks and Tick-Borne Diseases of Colorado, Including New State Records for Argas radiatus (Ixodida: Argasidae) and Ixodes brunneus (Ixodida: Ixodidae), Journal of Medical Entomology, tjaa232, https://doi.org/10.1093/jme/tjaa232[/vc_column_text][/vc_column][vc_column width="1/3"][vc_single_image image="6175" img_size="" add_caption="yes" onclick="link_image"][/vc_column][/vc_row]...

Ixodes texanus

[vc_row][vc_column width="2/3"][vc_column_text] Ixodes texanus Distribution Distribution in the USA includes AL, AR, AZ, CA, CO, CT, DE, FL GA, IA, ID, IL, IN, KS, LA, MD, MI, MO, MT, NC, NM, NY, OH, OK, OR, SC, TN, TX, UT, VA, WA, WI, and WV; in Canada, British Columbia, Quebec, and Ontario. It is also thought to occur in Mexico, specifically the states of Guerrero and Nuevo Leon. Hosts Hosts include weasels, badgers, skunks, and other mustelid carnivores in western states of the USA, and primarily raccoons in the East. Occasional hosts include Virginia opossums,rodents, lagomorphs; domestic dogs and humans. Vector Status The agents of raccoon babesiosis, ehrlichiosis  and Rocky Mountain spotted fever have been detected from Ixodes texanus. Resources H Joel Hutcheson, James W Mertins, Boris C Kondratieff, Monica M White, Ticks and Tick-Borne Diseases...

Ixodes spinipalpis

[vc_row][vc_column width="2/3"][vc_column_text] Ixodes spinipalpis Distribution This hard tick is a wide ranging species throughout the western US. It verifiably occurs only in the Pacific Coastal and Mountain States and Provinces of the USA and Canada, including CA, CO, ID, MT, NV, OR, SD, UT, WA, Alberta, and British Columbia. Claims of the occurrence of this tick in NM, TX, and Mexico appear to be questionable. Hosts Adult and immature I. spinipalpis feed on numerous species of rodents, lagomorphs (most recently in Boulder County, CO 2018), and sometimes humans, the latter especially in MT, OR, WA, and CA. Immatures also parasitize birds as evidenced by recent collections from migratory birds (song sparrow orange-crowned warbler, gray catbird, Lincoln’s sparrow) sampled in three counties in CO during bird banding efforts by Bird Conservancy...

Ixodes sculptus

[vc_row][vc_column width="2/3"][vc_column_text] Ixodes sculptus Distribution This tick occurs throughout western North America; occasionally in the east. Distribution of I. sculptus in the USA includes AZ, CA, CO, IA, ID, IL, IN, KS, LA, MI, MN, MT, ND, NE, NM, NV, OK, OR, SD, TX, UT, WA, WI, and WY; in Canada, Alberta, British Columbia, Saskatchewan and Manitoba. It is commonly found in prairie habitats, but may also occur in shrubland and forested habitats. Hosts This tick is most commonly associated with squirrels, usually burrowing mammals, and their predators. A study in Colorado found that hosts include several species of burrowing mammals, especially thirteen-lined ground squirrels (Spermophilus tridecemlineatus). Several species of carnivores, including domestic dogs, cats, as well as rodents, lagomorphs (rabbits) and goats have also been found to host this tick....

Ixodes ochotonae

[vc_row][vc_column width="2/3"][vc_column_text] Ixodes ochotonae Distribution The geographic distribution of I. ochotonae in the USA includes CA, CO, ID, MT, NV, UT, WA, and WY; in Canada, British Columbia and Saskatchewan. Hosts Hosts include primarily pikas and woodrats, but also chipmunks, pocket gophers, voles, and native mice. Vector Status Anaplasma phagocytophilum DNA has been detected in Ixodes ochotonae ticks from California. Resources H Joel Hutcheson, James W Mertins, Boris C Kondratieff, Monica M White, Ticks and Tick-Borne Diseases of Colorado, Including New State Records for Argas radiatus (Ixodida: Argasidae) and Ixodes brunneus (Ixodida: Ixodidae), Journal of Medical Entomology, , tjaa232, https://doi.org/10.1093/jme/tjaa232[/vc_column_text][/vc_column][vc_column width="1/3"][vc_single_image image="6175" img_size="full" alignment="center" onclick="link_image"][/vc_column][/vc_row]...

Ixodes kingi

[vc_row][vc_column width="2/3"][vc_column_text] Ixodes kingi (the rotund tick) Distribution This hard tick occurs throughout western North America and occasionally in the east. Its distribution in the USA includes AZ, CA, CO, IA, ID, KS, MI, MS, MT, NC, ND, NE, NM, NV, OK, OR, SD, TX, UT, and WY; collections in the eastern USA (GA, MD, and OH) are dubious. In Canada, it occurs in Alberta, British Columbia, Manitoba, and Saskatchewan.  It is commonly found in prairie habitats, but may also occur in shrubland and forested habitats. Hosts This species has a wide range of host associations: 19 species of carnivores including domestic dogs and cats, weasels, and American badgers; 40 species of rodents; 5 species of lagomorphs; and humans. Differences in morphometrics have been found in host associations in areas west...

Ixodes howelli

[vc_row][vc_column width="2/3"][vc_column_text] Ixodes howelli Distribution The geographic distribution for this little-known species includes at least AK, CA, CO, MT, and TX  but, like I. baergi, it may be more widespread. Its presence in Colorado is based on a single nymph collected in Weld County in 1943 from a prairie falcon and identified by Kohls and Ryckman (1962). Hosts Hosts are primarily cliff swallows; but also other birds that may nest nearby, including the gray-crowned rosy finch, the prairie falcon; and the gyrfalcon. Vector Status This tick currently has no known medical or veterinary importance. Resources H Joel Hutcheson, James W Mertins, Boris C Kondratieff, Monica M White, Ticks and Tick-Borne Diseases of Colorado, Including New State Records for Argas radiatus (Ixodida: Argasidae) and Ixodes brunneus (Ixodida: Ixodidae), Journal of Medical Entomology, tjaa232, https://doi.org/10.1093/jme/tjaa232[/vc_column_text][/vc_column][vc_column width="1/3"][vc_single_image image="6175" img_size="" add_caption="yes" onclick="link_image"][/vc_column][/vc_row]...

Tick ID-Ixodes brunneus tick photo by Monica White

Ixodes brunneus

[vc_row][vc_column width="2/3"][vc_column_text] Ixodes brunneus Distribution I. brunneus is an ectoparasite of avians, migratory passerines in particular, and, because of this strong host association, it can be found in any of the United States. This tick’s known distribution in the US includes Alabama, Arkansas, California, Connecticut, Florida, Georgia, Indiana, Kansas, Massachusetts, Maryland, Missouri, Mississippi, North Carolina, New Jersey, New York, Ohio, Oklahoma, Oregon, Pennsylvania, South Carolina, Tennessee, Texas, Virginia, Wisconsin and Michigan; in Canada it occurs in Manitoba, New Brunswick, and Ontario. We now add Colorado to the US distribution, based on a recent collection by our citizen science partners at Bird Conservancy of the Rockies. On May 17, 2018, one larval stage I. brunneus was collected from an American yellow warbler, Setophaga petechia, in Jefferson County. The specimen has been...