Knowledgebase

What is this strange beetle with long antennas? #658870

Asked July 02, 2020, 12:01 AM EDT

I walked out on my porch and found this large beetle lying on the ground. It is a dark reddish-black color and has very long and wide antennas. I assume it was attracted to my porch light but I have no idea what type of beetle this is? Just curious of what it is and thank you for your input!

County Maryland

Expert Response

Hi - This looks like a longhorn beetle in the genus Prionus. The Tile-horned Prionus is one of three species in Maryland that's a possibility. https://www.marylandbiodiversity.com/viewChecklist.php?genus=Prionus
They feed on plant matter and the adults are indeed attracted to lights at night.

Christa
Answered by the Home & Garden Information Center's Maryland Certified Professional Horticulturists Replied July 02, 2020, 2:54 PM EDT
One of our team members says it looks specifically like the brown prionid longhorn beetle. https://www.marylandbiodiversity.com/view/8305

Christa
Answered by the Home & Garden Information Center's Maryland Certified Professional Horticulturists Replied July 02, 2020, 3:27 PM EDT

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