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Volume 31, Number 2—February 2025
Research Letter

Ixodes scapularis Tick Parasitizing Dog in Dawson County, Montana, USA, 2023

Philip E. StewartComments to Author , Justin B. Lack, Marni Rolston, Kimmo Virtaneva, Paul A. Beare, Craig M. Martens, Marshall E. Bloom, and Tom G. Schwan
Author affiliation: National Institutes of Health Rocky Mountain Laboratories, Hamilton, Montana, USA (P.E. Stewart, K. Virtaneva, P.A. Beare, C.M. Martens, M.E. Bloom, T.G. Schwan); National Institutes of Health, Rockville, Maryland, USA (J.B. Lack); Montana State University, Bozeman, Montana, USA (M. Rolston)

Main Article

Figure 1

Partially engorged female Ixodes scapularis tick from Dawson County, Montana, USA, 2023. Tick was found on a dog, and key characteristics were used for identification. A) Dorsal view of capitulum showing shape of scutum and palp, basis capituli, and porose areas. Scale bar = 1 mm. B) Ventral view of capitulum showing shape and length of internal spurs on coxae I. Scale bar = 1 mm. C) Right lateral view of idiosoma showing spiracular plate. Scale bar = 1 mm. D) Enlargement of spiracular plate showing number and size of the goblet cells. Scale bar = 0.25 mm.

Figure 1. Partially engorged female Ixodes scapularis tick from Dawson County, Montana, USA, 2023. Tick was found on a dog, and key characteristics were used for identification. A) Dorsal view of capitulum showing shape of scutum and palp, basis capituli, and porose areas. Scale bar = 1 mm. B) Ventral view of capitulum showing shape and length of internal spurs on coxae I. Scale bar = 1 mm. C) Right lateral view of idiosoma showing spiracular plate. Scale bar = 1 mm. D) Enlargement of spiracular plate showing number and size of the goblet cells. Scale bar = 0.25 mm.

Main Article

Page created: December 13, 2024
Page updated: January 31, 2025
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