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Home » Guide » Arthropods (Arthropoda) » Chelicerates (Chelicerata) » Arachnids (Arachnida) » Mites and Ticks (Acari) » Parasitiformes » Ticks (Ixodida) » Hard Ticks (Ixodidae) » Dermacentor » Rocky Mountain Wood Tick (Dermacentor andersoni)
Photo#1176746
Dermacentor sp. - Dermacentor andersoni
Copyright © 2015 Phil Nosler

Dermacentor sp. - Dermacentor andersoni
Gresham, Multnomah County, Oregon, USA
Size: About 5.5 mm
This is the second of two ticks I'm guessing belong to Dermacentor. It probably came from a field in south Gresham, Oregon.

Does anyone know any good books or scientific papers for identification of ticks in my area?

Thanks,
Phil

Images of this individual: tag all
Dermacentor sp. - Dermacentor andersoni Dermacentor sp. - Dermacentor andersoni Dermacentor sp. - Dermacentor andersoni Dermacentor sp. - Dermacentor andersoni Dermacentor sp. - Dermacentor andersoni Dermacentor sp. - Dermacentor andersoni
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Contributed by Phil Nosler on 25 December, 2015 - 3:48pm
Last updated 30 December, 2015 - 2:21pm

Moved
Moved from Dermacentor.
… Blaine Mathison, 30 December, 2015 - 2:21pm login or register to post comments

Moved
a more complete view of the spiracular plate (behind the last pair of legs, Image 6) may help with the species level ID

Moved from ID Request.
… Blaine Mathison, 25 December, 2015 - 4:25pm login or register to post comments

 
Spiracular Plate
I uploaded another try at the spiracular plate. I hope it's clear enough to narrow down the species options. Is the plate from image 5 different from the one in image 6?

Thanks for your help,
Phil
… Phil Nosler, 25 December, 2015 - 4:42pm login or register to post comments

 
7 doesnt quite cut it...
can you image slightly further to the right (of what is shown in Figure 7). I would like to see the degree of extension coming off of the plate.

And Images 5 and 6 are similar yes, one can prob be frassed or deleted.
… Blaine Mathison, 25 December, 2015 - 6:58pm login or register to post comments

 
Another Try
I propped the tick up and took another picture of the spiracular plate. I also deleted image 5. Are the mouthparts of the Dermacentor tick and the Ixodes tick good identification marks for genus?
… Phil Nosler, 26 December, 2015 - 12:09am login or register to post comments

 
this view of the plate is better
I'll check my references when I am back at work on Monday
… Blaine Mathison, 26 December, 2015 - 10:36pm login or register to post comments

 
Dermacentor andersoni
Thanks for your help, Blaine!
… Phil Nosler, 30 December, 2015 - 4:00pm login or register to post comments

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