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Home » Guide » Arthropods (Arthropoda) » Insects (Insecta) » Beetles (Coleoptera) » Water, Rove, Scarab, Longhorn, Leaf and Snout Beetles (Polyphaga) » Flower, Flat Bark and Ladybird Beetles (Cucujoidea) » Lady Beetles (Coccinellidae) » Chilocorinae » Exochomus » Exochomus subrotundus
Photo#266274
Shiny tiny Coccinellidae - Exochomus subrotundus
Copyright © 2009 margarethe brummermann

Shiny tiny Coccinellidae - Exochomus subrotundus
Sabino Canyon, Tucson, Pima County, Arizona, USA
April 15, 2009
Size: 3mm
On mesquite
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Contributed by margarethe brummermann on 15 April, 2009 - 2:29pm
Last updated 16 April, 2009 - 12:33pm

looks like Exochomus -- just a feeling
*
… v belov, 15 April, 2009 - 6:04pm login or register to post comments

 
E. marginipennis
looks like that - now where do I get the distribution data?
… margarethe brummermann, 15 April, 2009 - 7:40pm login or register to post comments

 
E. subrotundus Casey 1899
Gordon's(1) (of course) distro for E. marginipennis extends west to central TX, north through central Kansas. E. subrotundus Casey is the only Exochomus with this coloration (can also have wider pale areas across entire base) in your area. Distro is scattered but appears to be generally the southwest, into southern TX through Big Bend and along the Rio Grand. Gordon does state that the two species do not overlap.

You're in prime teritory for new ladybirds for BugGuide! Keep'm coming, and another new species for BugGuide :)

PS: Leng in 1908 page 40 had this one as E. fasciatus var. subrotundus, but appears to have elevated it in a 1920 pub.
… Tim R. Moyer, 16 April, 2009 - 11:51am login or register to post comments

 
Thanks, Tim
I'm always looking!
… margarethe brummermann, 16 April, 2009 - 12:31pm login or register to post comments

 
I cannot find any
in AZ. I am looking at 'Notes on Coccinellidae' Leng, Mar. 1908, Jour. New York Entomological Soc. Vol. XVI Pg. 38 http://books.google.com/books?id=GnIVAAAAYAAJ&pg=PA39&lpg=PA39&dq=exochomus+marginipennis&source=bl&ots=GAF5EZF5fd&sig=8_ZK_pR5EHu6OtCVxmb72dorq3g&hl=en&ei=4n7mSeOrGZPItAPuwcDiAQ&sa=X&oi=book_result&ct=result&resnum=6#PPA29,M1
… margarethe brummermann, 15 April, 2009 - 8:02pm login or register to post comments

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