Identification, Images, & Information
For Insects, Spiders & Their Kin
For the United States & Canada
 

Register · Log In
HomeGuideID RequestRecentFrassForumsDonateHelp
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

Calendar
Upcoming Events

Registration is open for the 2024 BugGuide gathering in Idaho July 24-27

Moth submissions from National Moth Week 2023

Photos of insects and people from the 2022 BugGuide gathering in New Mexico, July 20-24

Photos of insects and people from the Spring 2021 gathering in Louisiana, April 28-May 2

Photos of insects and people from the 2019 gathering in Louisiana, July 25-27

Photos of insects and people from the 2018 gathering in Virginia, July 27-29


Previous events
TaxonomyBrowseInfoImagesLinksBooksData
Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Series Cucujiformia » Coccinelloidea » Coccinellid group » Lady Beetles (Coccinellidae) » Chilocorinae » Exochomus » Exochomus subrotundus
Photo#559219
blackish Lady Beetle with reddish markings on Goosefoot - Exochomus subrotundus
Copyright © 2011 Emile

blackish Lady Beetle with reddish markings on Goosefoot - Exochomus subrotundus
Palos Verdes Peninsula, Los Angeles County, California, USA
August 6, 2011
Size: ~ 3 mm
Found a few of these on Goosefoot (Chenopodium).

Looks a LOT like Exochomus marginipennis, but that is an Eastern species.

There is also the variable E. subrotundus, which is found in California, but its reddish markings appear minimalistic compared to those of E. marginipennis, judging from the few specimens on BugGuide.

Is this an E. subrotundus in E. marginipennis disguise, an adventive E. marginipennis, or ... a completely different species ?

Images of this individual: tag all
blackish Lady Beetle with reddish markings on Goosefoot - Exochomus subrotundus blackish Lady Beetle with reddish markings on Goosefoot - Exochomus subrotundus blackish Lady Beetle with reddish markings on Goosefoot - Exochomus subrotundus
tag · login or register to post comments
Contributed by Emile on 7 August, 2011 - 3:05pm
Last updated 19 March, 2012 - 10:30am

Exochomus fasciatus ?
Over the years, I keep finding similar specimens at this same locality;
most are similarly patterned, but one has virtually all reddish elytra with two blackish blotches near the elytral apex (similar to ).
All appear to have a completely black pronotum; indicating E. fasciatus.

The lighter patches on the pronotum of the specimen on this page are likely due to its shiny surface.
… Emile, 24 July, 2016 - 10:11am login or register to post comments

Moved
Moved from Exochomus.
… Abigail Parker, 19 March, 2012 - 10:30am login or register to post comments

Exochomus subrotundus
This is one potential color variation for E. subrotundus, and the slightly paler areas on the pronotum (especially visible in the 2nd image) rule out the most similar Southern CA species, Exochomus fasciatus. This genus is notoriously difficult to judge on external appearance, with many variations within species and subspecies.
… Abigail Parker, 19 March, 2012 - 10:29am login or register to post comments

 
Fantastic, Abigail !
Thanks a lot for figuring this out !
… Emile, 19 March, 2012 - 1:39pm login or register to post comments

Moved
Moved from Lady Beetles.
… Abigail Parker, 17 March, 2012 - 2:00pm login or register to post comments

 
Thanks a lot for the confirmation & upward move, Abigail !
… Emile, 17 March, 2012 - 3:33pm login or register to post comments

Moved
Moved from Beetles.
… Tim Loh, 17 September, 2011 - 1:03pm login or register to post comments

Moved
Moved from ID Request.
… john and jane balaban, 2 September, 2011 - 5:44pm login or register to post comments

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

Disclaimer: Dedicated naturalists volunteer their time and resources here to provide this service. We strive to provide accurate information, but we are mostly just amateurs attempting to make sense of a diverse natural world. If you need expert professional advice, contact your local extension office.

Contributors own the copyright to and are solely responsible for contributed content.
Click the contributor's name for licensing and usage information.
Everything else copyright © 2003-2024 Iowa State University, unless otherwise noted.

Bugguide is hosted by:

Plant Pathology, Entomology and Microbiology at Iowa State University logo

Printer Friendly Version 		Terms of Use
Privacy Statement
Site Map
Contact