Euetheola rugiceps (LeConte, 1856) (Coleoptera: Scarabaeidae: Dynastinae)

Euetheola rugiceps (LeConte, 1856)
Ligyrus rugiceps LeConte, 1856 (original combination).
Euetheola humilis Burmeister, 1847 (synonym).

Euetheola rugiceps.jpg

Comment: E. rugiceps (LeConte) is known to occur southeastern US and keep spreading upward to midwest states. I personally collected couple of specimens in southern Nebraska, 2014. Very common in down south. They are mostly active in between May-June to August. I have experience of collecting more than a hundred specimen in a single night with a small battery-operated blacklight within an hour. This species do not show a sexual dimorphism, therefore, genitalia must be extracted to determine the sex. In my personal collections from Shreveport, LA and Alexandria, LA, there were whole lot more females than males collected.

*Image of aedeagus will be updated in near future.

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2 thoughts on “Euetheola rugiceps (LeConte, 1856) (Coleoptera: Scarabaeidae: Dynastinae)

  1. The common name of this scarab beetle is “sugarcane beetle” and the grubs are considered a pest of various crops in southern North America. The correct scientific name is “Euetheola humilis” and “Euetheola rugiceps” is a synonym of that name.

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    • Thank you for your interested in my post! This post surely lacks a lot of information, right? I just want to let you know that I just keep my post simple with plate images and some common information, or my experiences included. I definitely recognize, respect, and credit other’s works, but I don’t want to say “THIS IS MY WORK!” after citing bunch of other’s works. That’s all. (doesn’t mean that I’m going to write a bunch crap here though.)

      For the name, yes, I’ve been knowing it as E. humilis, and I even labeled most of my collections as E. humilis, but I recently had a conversation with Dr. Brett C. Ratcliffe at University of Nebraska State Museum (Lincoln, NE, USA), and found out this specimen is NOT E. humilis, but E. rugiceps. I’m not quite sure what’s up with the current taxonomy, but will update you later via this comment reply about it.

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