Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
Clickable Guide
Moths Butterflies Flies Caterpillars Flies Dragonflies Flies Mantids Cockroaches Bees and Wasps Walkingsticks Earwigs Ants Termites Hoppers and Kin Hoppers and Kin Beetles True Bugs Fleas Grasshoppers and Kin Ticks Spiders Scorpions Centipedes Millipedes

Calendar

TaxonomyBrowseInfoImagesLinksBooksData
Photo#1486711
Psamatodes trientata - male

Psamatodes trientata - Male
29.797499, -100.998049, Val Verde County, Texas, USA
November 26, 2017

Moved
Moved from Geometrid Moths.

 
.
I am not at all sure about this placement. I have reared two that look just like this that I think are P. abdyata. I am trying to learn to dissect and if so I should be able to tell them apart. If it is P. trientata it would have to be a female.

 
trientata vs abydata
This is essentially a two-tone brown moth with almost no lines, dots, or blotches. It is significantly different from the four abydata I have photo'd at this site. There is a photo of trientata on MGP that is nearly identical to this moth--of course there is a photo of abydata on MPG that also is a close match. [Why those two photos are not on the same MPG page is someone's oversight.]

I identified this one as a male because it says on the BG species page for trientata that the black extramedial spot seen on abydata is absent on male trientata and reduced in females. Of course, after an hour of searching online, I cannot find a definition or illustration that identifies what is an "extramedial spot."

 
.
My information on what the male A. trientata looks like comes directly from the Moths of North America Fascile written by Ferguson. If you noticed, one of the two specimens placed to species placed on BG is a photograph of mine.

Edit 2 3 18 - This would be a MALE trientata according to Ferguson. I mispoke.

Moved
Moved from ID Request.

Comment viewing options
Select your preferred way to display the comments and click 'Save settings' to activate your changes.