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Jul 3, 2015 12:50 PM CST
Name: Leslieray Hurlburt
Sacramento California (Zone 9b)
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I think I've ID this correctly but I can't seem to find any info about it? I think by the name that Clark found it on a penstemon? Anyone know a source for this kind of info. I know its range but that's it. Have not seen it before. We have quite a few penstemons if thats what it's looking for but in this, not so good, photo its on a Buddleja.
Thumb of 2015-07-03/HamiltonSquare/89caa3
Thumb of 2015-07-03/HamiltonSquare/5e2667
Hamilton Square Garden, Historic City Cemetery, Sacramento California.
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Jul 3, 2015 2:14 PM CST
Name: Dirt
(Zone 5b)
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http://bugguide.net/node/view/...
it would seem there are a few others in the genus Penstemonia and I guess their larvae eat the roots?
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Jul 3, 2015 2:38 PM CST
Name: Janet Super Sleuth
Near Lincoln UK
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I can't find an exact match, but I found a pdf on the clearwing moths of California. There's a list on page 7 of which species of Penstemon are host to species of moth.

http://www.cdfa.ca.gov/plant/p...
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Jul 3, 2015 9:12 PM CST
Name: Leslieray Hurlburt
Sacramento California (Zone 9b)
The WITWIT Badge Region: California Plant Lover: Loves 'em all! Xeriscape Native Plants and Wildflowers Salvias
Foliage Fan Lover of wildlife (Black bear badge) Birds Bee Lover Hummingbirder Butterflies
Yes it was there on page seven. The host plant is Penstemon palmeri of which we've had one for two yearsm I tip my hat to you. now. I will check the base of the stems to see if I can find the exit holes. I never expexted they would be feeding off the roots. Thanks you both. The Occasional Papers PDF was fantastic.
Hamilton Square Garden, Historic City Cemetery, Sacramento California.
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Jul 4, 2015 4:01 AM CST
Name: Janet Super Sleuth
Near Lincoln UK
Bee Lover Plant Identifier Organic Gardener Dragonflies I was one of the first 300 contributors to the plant database! Charter ATP Member
Cat Lover Garden Photography Butterflies Birds Spiders!
I tip my hat to you.

There's a key to California Penstemonia species (and others), the final determination of is on page 45, #3 (use find on this page, search for clarkei) which states:

Abdominal segment 6 dorsally banded yellow to nearly white


You can go backwards from that to #2

Anal tuft without elongate lateral portions
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