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Cicada species?? - Megatibicen resh

Cicada species?? - Megatibicen resh
Corpus Christi, Texas, USA
July 19, 2004
Just wondering what species this cicada is. Found him on my patio in Corpus Christi, Tx. None of the photos I found on the web matched this cicada at all. Any help is greatly appreciated! Thanks!

Moved from "Walker's Cicada".

Tibicen walkeri, Great Harvestfly
This is the largest and bulkiest cicada in North America. It was formerly called "Tibicen marginalis", but this name is preoccupied by an old-world species.

The only other cicada that is slightly smaller in our fauna is T. auletes, which is without the "golden M" markings on the back.

Thanks for the posts!!! With the info provided I was able to narrow it down to the one you identified (Tibicen Dorsata) or another one Tibicen Auletes. It's been hard to tell from pictures I've found on the web but they look very similar. I appreciate the really quick response too! The curiousity was killing me. Thanks!!!!

Just in case nobody else says so, great picture! Shows a lot of detail.

Grand Western Cicada?
Given your location, it could be a Grand Western Cicada (Tibicen dorsata), but I'm no expert and can't say for sure.

I agree, it's Tibicen dorsata.
A great picture reference can be found here.

not T. dorsata
Hi, Have to agree with Andy. I've been catching, watching, listening to these critters all my life, and this is not T. dorstata. That species is a richer brown (no green) with stronger black and white markings. The T. pronotalis / dealbata types are usually green or at least greenish, and look very similar, but the dark markings tend to be less strongly developed. You can clearly see greenish coloring on this one.

Your thoughts?...what about T. resh?
I've been trying to "tease several of these images apart". The eye coloration, body coloration and pronotal pattern of this cicada are much more consistent with T. resh than pronotalis...and I have not been able to confirm T. pronotalis that far down in coastal Texas (??). We are still working on the range, but currently the reports/few pronotalis in collections from east TX (esp. the Corpus Christi region) have been misid'd resh.

The distribution and shift from T. pronotalis to dealbatus is vague in eastern Texas (??). The calls are often scattered, but since T. dealbatus and pronotalis possess the same call, wihtout the cicada in hand it is not possible to know for certain which taxon is present ... and where.

In Corpus Chrisit, I have heard lots of resh (VERY Common!) - but not yet pronotalis/dealbatus types, which again makes me wonder as to the id. of the pictured insect here.

Based on specimens in hand and collections reviewed (+per. comm.), it appears dealbatus comes further east in TX (incl. the more arid se. of TX - but not as far as the Gulf of Mex.) and pronotalis seems thin in extreme ne. TX. adj. to Louisiana, Arkansas and se. OK, where it transitions into dealbatus types not far into eastern TX.
Example of a Falls Co., dealbatus ("east/east central" TX)

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