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

Register · Log In
Clickable Guide
Interactive image map to choose major taxa 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

National Moth Week was July 19-27, and the Summer 2025 gathering in Louisiana, July 19-27

Photos of insects and people from the 2024 BugGuide gathering in Idaho July 24-27

Moth submissions from National Moth Week 2024

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
Home » Guide » Arthropods (Arthropoda) » Hexapods (Hexapoda) » Insects (Insecta) » Beetles (Coleoptera) » Polyphaga » Series Cucujiformia » Coccinelloidea » Coccinellid group » Lady Beetles (Coccinellidae) » Coccidulinae » Coccidulini » Rhyzobius » Rhyzobius forestieri
Photo#495745
Black on black - Rhyzobius forestieri
Copyright © 2011 R. Berg

Black on black - Rhyzobius forestieri
Alameda County, California, USA
March 5, 2011
Size: 3.9 mm bl
Rescued from a spider web. The dark black shape on a lighter black background on the elytra was easier to see in reality than in photos. The bug flew away before I could shoot other views. Its ventral surface had some orange.
tag · login or register to post comments
Contributed by R. Berg on 6 March, 2011 - 4:09pm
Last updated 29 June, 2011 - 12:01pm

Moved
Moved from Rhyzobius.
… R. Berg, 29 June, 2011 - 12:01pm login or register to post comments

R. forestieri, by size
R. lophanthae is never more than 3mm long, while R. forestieri can be almost 4mm long. That and the uniformly dark color have got me convinced! I'll create a new page for you to move this into. Nice work!
… Abigail Parker, 29 June, 2011 - 8:43am login or register to post comments

 
Sorry to hijack the page
But do you know what forestieri is derived from? Assume it is a name, but is it "Forestie", Forestier", "Foresti", etc.?
… James Bailey, 16 September, 2015 - 10:07pm login or register to post comments

 
"Forestier"
From Mulsant's original description of the species:

"J'ai dédié cette espèce a M. l'abbé Forestier, prêtre mariste, qui continue à explorer avec zèle les îles de l'Océanie."

I haven't been able to track down a first name yet.

Mulsant, M.E. 1853: Supplément a la Monographie des Coléoptères Trimerès Sécuripapes. Annales de la Société Linnéenne de Lyon (n.s.), 2 2(1852-1853), p. 286.
… Abigail Parker, 22 January, 2016 - 8:04pm login or register to post comments

Moved
Moved from Scymninae.
… R. Berg, 22 June, 2011 - 11:57am login or register to post comments

Rhyzobius, not sure which
The two lengths of setae and apparently long antennae point to Rhyzobius rather than Scymnus. This might be the elusive R. forestieri, limited to California, but I can't say for sure. It can go to genus, though.
… Abigail Parker, 22 June, 2011 - 11:02am 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 © 2003-2025 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