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

Calendar
Upcoming Events

National Moth Week photos of insects and people. Here's how to add your images.

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

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

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


TaxonomyBrowseInfoImagesLinksBooksData
Photo#1770398
Possibly Lethocerus americanus - Benacus griseus

Possibly Lethocerus americanus - Benacus griseus
Naples, Collier County, Florida, USA
July 1, 2019
Size: 55 mm
This large water bug was removed from the stomach contents of a cane toad. It does not appear to have a mid ventral keel on the metasternum and the front wing is not reduced, the basal segment of the beak appears to be shorter than the second, the anterior femur appears to have a deep narrow groove for the reception of the tibia, and the middle and hind leg are not banded.

Images of this individual: tag all
Possibly Lethocerus americanus - Benacus griseus Possibly Lethocerus americanus - Benacus griseus Possibly Lethocerus americanus - Benacus griseus Possibly Lethocerus americanus - Benacus griseus

Moved
Moved from Giant Water Bugs.

Benacus griseus
This is definitely Benacus griseus. I don't know about that groove you have labelled on the front femur, but it doesn't appear to be there to me, and it is quite distinct on Lethocerus. The shape of the hind tibia and black ventral stripes are clearly B. griseus. Also, there are no L. americanus in Florida, but L. uhleri are.

 
Thanks
for the identification. To do my identification, I used the key to the species of Florida Belostomatidae. The key is an online key titled "Featured Creatures -common name: giant water bugs, electric light bugs-scienfitic name: Lethocerus, Abedus, Belostomatidae (Insecta: Hemiptera: Belostomatidae." The web host of the site is the University of Florida (UF/IFAS. The key lists seven species in Florida. Four species are. Lethocerus, and one of them is L. americanus. Benacus griseus is not listed specifically, but now on closer examination I see that Lethocerus griseus has Benacus in parentheses. I really wasn't sure what the groove would look like and I thought I saw a depression, but I'm sure you are correct. Thanks again for your help!

 
species
Yes, B. griseus was at one point L. griseus. The reason L. americanus is usually included in those lists and keys is because in the past many individuals were incorrectly identified as L. americanus, when in fact they were probably L. uhleri, which is very similar. The other species L. annulipes, is from the Caribbean and only observed once in Florida.

 
Thanks
for the detailed explanation. :)

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