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A parasitologist's view of the world
Welcome to Parasite Case of the Week
Every week I will post a new Case, along with the answer to the previous case. Please feel free to write in with your answers, comments, and questions. Also check out my image archive website at http://parasitewonders.com. Enjoy!
The Fine Print:
Please note that all opinions expressed here are mine and not my employer. Information provided is for educational purposes only. It is not intended as and does not substitute for medical advice. I do not accept medical consults from patients.
The Fine Print:
Please note that all opinions expressed here are mine and not my employer. Information provided is for educational purposes only. It is not intended as and does not substitute for medical advice. I do not accept medical consults from patients.
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9 comments:
Ixodes sp. The anal groove is visible and festoons are absent, even though all other confirmatory features would not be visible due to condition (mouthparts; absence of eyes; color of scutum).
I had an Amblyomma nymph this morning in a similar condition!
Definitely an arthropod (tick)! Anal groove goes “completely over” anus, so I’d also go for ixodes sp.
Too bad we don’t have a picture from its back, to check for a “shield” etc...
This is what one typically gets in the lab! Horribly damaged, usually due to “wrong” or “bad” removal procedure.
What Blaine said.
The inverted V shape anal groove is anterior to the anus. This allows us to identify the tick as an Ixodes so. Lack of the dorsal aspect as well as dismembered legs prevent us to say whether this is a male or female tick and the growth stage.
Florida Fan
Ixodes spp. If recently encountered in Canada, then most likely an adult female or nymphal blacklegged tick (I. scapularis = I. dammini). An image of the dorsum and some indication of size would help add assurance.
Actually, it is a female.
That's a tick, Ixodes sp
Ixodes scapularis female (I. pacificus if it is from far Western Canada), happily unengorged. The orange color is a good character determining sex (males are black), stage (nymphs are sort of transparent charcoal grey) and engorgement (she grows new opisthosoma tissue in order to engorge andbecomes grayish/whitish). Lack of festoons and anal groove like an upside down horseshoe = genus Ixodes.
brown legs, depression around anal pore. Ixodes sp.
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