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Timema - Timema nevadense - female

Timema - Timema nevadense - Female
Mt. Charleston, Spring Mts, Hwy 158 nr xing Hwy 157, Clark County, Nevada, USA
May 15, 2017
Should be Timema nevadense?!? Collected by Katja Kramp.

Images of this individual: tag all
Timema - Timema nevadense - female Timema - Timema nevadense - female Timema - Timema nevadense - female Timema - Timema nevadense - female

Additional terminalia images
Many thanks, Martin, for adding those very nice terminalia images...both for your Mt. Charleston post here; and your McCullough Range post!!

[PS: See my comment under the 2nd image in this series, regarding the very bizarre terminalia there!]

Moved to Timema nevadense
Moved from Timema.

The Spring Mnts are the type area and, from collection records, the apparent epicenter of this species. No other species is recorded from there. So I think it's safe to move this one to T. nevadense.

The shape of the terminalia here (i.e. symmetric, conically-tapering cerci) indicates a female.

ID here should be taken as tentative
As far as a putative species ID here, I tentatively placed this under T. nevadense due to the fairly good agreement in shape and proportions between the subgenital plate in your 2nd dorsal detail image herein and that shown in Fig. 56 of Vickery(1993)...see the post below:


[Though note other aspects of the terminalia appear highly anomalous!...see comment under 2nd image of the series.]

Also, the location here is squarely in the area associated with T. nevadense...Vickery(1993) lists two records from "Kyle Canyon", which is where Hwy 158 meets Hwy 157. One record is from a single male on Cercocarpus collected on May 3, 1978; and the other another single male collected from Pinus ponderosa on July 1, 1969.

Although I've tentatively placed this under T. nevadense for the reasons stated above, note that the dorsal aspect (shown in the 4th image of the series herein) doesn't conform so well with Fig. 36 from Vickery(1993), see below:


In particular, the apical emargination of T10 is much shallower...and the supra-anal plate much wider and elongate. Those features don't seem to match well with either of the figures given for nevadense in Vickery(1993) and Vickery & Sandoval(1999). They match a bit better with those of coffmani...but the size of the protruding supra-anal plate is larger than anything I've seen figured for any Timema species, again compare with the other Timema you posted from the McCullough Range, southeast of Las Vegas:


So perhaps this is an anomalous individual of T. nevadense...or perhaps it's something else?

Moved from ID Request.

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