An online resource based on the award-winning nature guide –

The Emerald Euphoria Beetle: A Distinctive Scarab

6-20-18 emerald euphoria beetle_U1A8526

Beetles comprise almost 40% of described insects and 25% of all known animal life-forms. There are about 30,000 beetles known as scarabs or scarab beetles in the family Scarabaeidae. They make up about 10% of all known beetles. You may be very familiar with scarab beetles without even being aware that that is what they are – they are as close as the nearest Japanese Beetle or June Bug (beetle).

Scarabs are generally oval-shaped and stout. The smallest are about .08 inches and the largest (Hercules beetles) can reach 6.7 inches. Most scarabs are black or brown, but many, especially tropical species, have bright colors and intricate patterns. They have distinctive, clubbed antennae composed of plates called lamellae that can be compressed into a ball or fanned out like leaves to sense odors (see photo). Their diet is extremely varied and includes plant material, fungi, fruit, carrion, insects and even the slime left by snails.

One fruit- and flower-eating species is the Emerald Euphoria beetle, Euphoria fulgida (pictured). It is usually bright green or bluish. Emerald Euphoria beetles belong to the subfamily Cetoniiae, the flower or fruit chafers. One of its most distinctive characteristics is its ability to fly (using its second pair of wings) while its first pair (the hardened, colorful elytra) remain closed — most beetles open and extend their elytra during flight.

Unlike most scarabs, Emerald Euphorias are diurnal, making it possible to see this species visiting flowers in order to consume nectar, pollen and petals.  (Thanks to Richard Wyatt for photo op.)

Naturally Curious is supported by donations. If you choose to contribute, you may go to and click on the yellow “donate” button.

8 responses

  1. Oh my goodness – wonderful photo (again!)! And another information-packed caption. You are a wonder, Mary! Thanks!

    June 20, 2018 at 8:15 am

  2. Alice Pratt

    Interesting that they can fan out their antennae……I’ll read up about Hercules Beetles…..would be interesting to be surprised by one 😮

    June 20, 2018 at 8:46 am

    • Alice Pratt

      Hercules Beetles don’t live in New England…..interesting read…esp. about their Physical Strength

      June 20, 2018 at 8:55 am

  3. Bill on the hill

    Outstanding detail on the above beetle Mary & once again tremendous content on the subject of beetles… I had to scroll down through the extensive list of Naturally Curious items listed & found the Emerald Ash Borer with it’s photo in the inset & the main photo illustrating the damage it does… If at all possible, I would like to see a full size photo of this insect in the future and currently the Ash Tree in most if not all of N. central Vermont is under quarantine… I would suggest this could make for an interesting storyline as well …
    Thank you,
    Bill Farr…

    June 20, 2018 at 9:55 am

  4. Pingback: 20180613-14 Blooms, pollinators, turtles and oyster mushrooms | Brtthome's Blog

  5. Hi Bill,
    For better or worse, I have never set eyes on an emerald ash borer…I’m not sure whether I want to or not! But it would make a great topic, you’re right! Let me know if you have one I could photograph (though I hope you don’t!).

    June 20, 2018 at 4:22 pm

  6. Sharon Walker

    The Japanese beetle is very destructive on rose bushes. I fight them all summer Long ugh!!!! Nasty little critters 🐜

    Sent from my iPhone


    June 20, 2018 at 8:47 pm

    • bbcsh

      My wife picks them off and throws them in soapy water, my treatment differs. I mix Dawn and water even amounts and spray the flowers, if your a good shot….they leave.

      June 21, 2018 at 1:43 pm

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s