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beetle on Veratrum californicum--any guesses?

Fori
8 months ago

This guy was found in Lassen NP at about 8000 ft. (lower Cascades range, CA) I'm pretty sure the plant is Veratrum californicum. (The internet, which couldn't possibly lie, says that these flowers are toxic to insects. And yet these flowers were full of an assortment of happy healthy critters so either my ID of the plant is wrong, or the internet is...)


Unfortunately my camera phone isn't great. Is it identifiable? Unfortunately he was covered in pollen. :)


Thanks!






Comments (9)

  • westmichiganflorafau
    8 months ago

    I guess Trigonarthris minnesotana.

    Fori thanked westmichiganflorafau
  • Fori
    Original Author
    8 months ago

    Thanks! Sure does look like it, if not one of the others in the genus. I can't find a good range map but I don't think maps are going to be reliable anyway.


    Funny, we found many other species of longhorned beetles in this area and had no problem putting them in a family but this one we blanked out on. 😊

  • PRO
    The Logician LLC
    8 months ago
    last modified: 8 months ago

    Bugguide website has "Info" tab for text range and "Data" tab for map.

    The whole genus of Trigonarthris is back east.

    I have a very similar beetle in my collection from subalpine WA Cascades.

    I will look into the ID.


    Flower Longhorn Beetles is a good bet for Family.

    Fori thanked The Logician LLC
  • Fori
    Original Author
    8 months ago

    Thanks!


    They don't seem to have any entries of the genus in CA or other western states on Bugguide. I am pretty sure I saw one BC mentioned somewhere but of course I can't find it now.

  • PRO
    The Logician LLC
    8 months ago

    It may be in same Family, different genus. Have not had time to look yet.


    My specimen was captured on flowers between Mt. Saint Helens and Mt. Adams 4500 foot elevation.


    Flowers are of course widespread but it would be unlikely to have the same beetle species back east in non-alpine environments.

    Fori thanked The Logician LLC
  • PRO
    The Logician LLC
    8 months ago
    last modified: 8 months ago

    ...about time I identified this beetle as it has been in my collection since the 1980s.

    Pachyta armata, no common name in regular use.

    Found initially via:

    https://bugguide.net/node/view/1367472

    ^click "PDF here"

    goes to https://osac.oregonstate.edu/PNW_Lepturinae

    ^click "Link to pdf" this is 152 pages, our beetle is on pages 102-103

    https://bugguide.net/node/view/166808/bgimage

    ^amount of black areas on wings varies.

    ^note on Data tab map this is strictly a West Coast species.


    ...and from https://bugguide.net/node/view/808208/bgimage

    "Without a doubt, in the Pacific Northwest we call them heart beetles. Assocated with high alpine enviroment.... "

    Fori thanked The Logician LLC
  • Fori
    Original Author
    8 months ago

    Wonderful!


    I do give Westmichigan points for the subfamily. I was stuck at "um...it's a beetle covered with pollen." =D

  • PRO
    The Logician LLC
    8 months ago

    Yes, beetles are a large group and Westmichigan was in the right taxonomic area.

    Fori thanked The Logician LLC
  • westmichiganflorafau
    8 months ago

    I was using "BEETLES of Eastern North America, Arthur V. Evans" and "my guess" was the only thing close. The genus Pachyta is not even in this book, but then it's not an "eastern" species :-)

    Fori thanked westmichiganflorafau
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