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TaxonomyBrowseInfoImagesLinksBooksData
Photo#1752082
Jikradia olitoria

Jikradia olitoria
Boxford, Essex County, Massachusetts, USA
September 12, 2019
Size: 6.4mm
I'm not quite convinced this is Jikradia olitoria, but there aren't really any other options so I'll go with it. I'm not convinced that anything in Jikradia olitoria is Jikradia olitoria though, so that's how valid my opinion is. We have a small number that look like this and a few of the larger brown ones. The shapes look quite different to me.

Jikradia
"I'm not convinced that anything in Jikradia olitoria is Jikradia olitoria though, so that's how valid my opinion is."

What do you mean?

"This species is somewhat of a slight taxonomic nightmare. The status of the subspecies and various synonyms under J. olitoria has fluctuated greatly over the past several decades. Recently Nielson et al. (2014) reinstated floridana as a distinct species separate from olitoria, but it is not clear why this is the case and what characteristics he used to separate the two species. C. Dietrich notes that males and females differ in coloration in the genus and there seems to be a great deal of variation in color pattern within one sex. Nielson (1979) showed that all the different color forms, originally thought to represent different species, instead were all the same species with the same male genitalia. Therefore, it seems that until a proper revision of the genus is published, everything should be placed under J. olitoria, and we can for now refer to J. olitoria as a species with a great deal of variation in both color and pattern (and therefore it is not worth trying to separate to subspecies due to the variation)."- from my note on the home page

 
Thank you, Kyle
That clears things up for me, I'm not sure how I missed that. I guess it could be useful to collect.

 
Jikradia
additional work certainly needs to be done on the olitoria complex (as well as Jikradia in Arizona). Nielson legit gives no reason for floridana being a species and doesn't even include it on his key to the genus. Chandler and Hamilton described a new species from the northeast, Jikradia brikelos, from a specimen collected in 1903; it hasn't been seen yet but it has a quite distinctive face (i went through all the olitoria yesterday and didn't see anything that matched brikelos on here).

But in accordance with Chris Dietrich, for now its best to leave everything as J. olitoria (outside of J. melanota, which is somewhat easy to identify).

 
Jikradia
Time to go hunt for a J. brikelos then! I'm surprised how messy it is despite how common they seem to be. The floridana issue is odd. I hope I can be of some use soon.

 
brikelos
look for one that has a face like this: https://bioone.org/ContentImages/Journals/taes/143/4/061.143.0408/graphic/p01_773.jpg

It seems that the Jikradia in the Northeast (per Chandler & Hamilton, 2017) are all the same "species" in terms of DNA barcoding. So specimens outside of the northeast, particularly in the southeast would also be needed. Dietrich has told me the genitalia across the species range do not indicate more than a single species with a lot of variation. One of many examples of hopper genera taxonomy that need a closer look to determine what exactly is going on...

Moved
Moved from Leafhoppers.

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