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

Upcoming Events

Discussion of 2018 gathering

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Photos of insects and people from the 2014 gathering in Virginia, June 4-7.

Photos of insects and people from the 2013 gathering in Arizona, July 25-28

Photos of insects and people from the 2012 gathering in Alabama

Photos of insects and people from the 2011 gathering in Iowa

Photos from the 2010 Workshop in Grinnell, Iowa

Photos from the 2009 gathering in Washington

Flea Beetle - Systena blanda

Flea Beetle - Systena blanda
Kenner, Jefferson Parish, Louisiana, USA
August 11, 2008
Size: 4mm

Images of this individual: tag all
Flea Beetle - Systena blanda Flea Beetle - Systena blanda Flea Beetle - Systena blanda

Don't look now but
It looks like two of the mm marks on your ruler got up and walked away!

Too funny!
I hadn't seen it that way until you mentioned it. FUNNY :o)

Try Systena
possibly S. elongata.

Thanks Mike.
I had suggested Systena elongata on the first images in this series. Currently we have only one image filed under S. elongata and the comment on that images mentions that the " head is somewhat troubling" - Tim R. Moyer.

Here is a link to an image on the North Dakota State University site of their S.elongata with a black head and pronotum.

Your arriving at this same conclusion helps. I feel more confident in my assessment.

Do you think I should move it to species or genus or even keep it here a couple of days?

And thanks again for your interest!

more likely Systena blanda
this couplet comes from the key for Systena of Alabama
Prothoracic and elytra ground color black..... S. elongata
Prothoracic and elytral ground color light brown or yellow..... S. blanda

The description of Systena blanda:
Elongate oval. Head red-brown. Pronotum shining, yellow, lateral margins brown. Elytra closely punctate; brown, more darkly so along suture, and each elytron with median yellow vitta. Prosternum and legs yellow-brown, meso and metathorax and abdomen black. Length 3.2-3.9 mm. Width 1.4-1.8 mm

I´ll check the key from Downy and Arnett later

I'll agree
What bothered me about identifying this as S. blanda though was the clearly black elytra, although the pronotum is red. As adults attain their mature coloration following emergence from the pupal stage they can go through red to black but never from black to red.

Thanks for the information.
I created a guide page HERE for Systena blanda - Palestriped Flea Beetle but I will wait until after you check the key before moving it there.

Thanks again Rob!

Systena blanda
I checked Downy and Arnett; there are no additional striped species for the north-east and its keys to S. blanda here as well.

Thanks to both...
Thanks for your help Rob and Mike!

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