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

Information about 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#31218
Caenocara sp. , Puffball Beetle - Caenocara

Caenocara sp. , Puffball Beetle - Caenocara
Windham, Rockingham County, New Hampshire, USA
September 9, 2005
Size: 2 mm
One larva, one pupa and one adult shown.

I broke open several mature puffballs, finding a number of inner nodules I suspected were tiny beetle grubs or pupae. In fact, I saw several grubs or pupae (I couldn't tell which without aid of magnification) while stirring and rubbing the spore dust and nodules. I saved the dust, nodules, etc. in a pill vial and re-examined it the next day, finding several very dusty mature beetles, one pupa and one grub. I'm assuming for now they are all the same species, but will see if the grub and pupa agree on maturation. I was impressed at once with the unusual antennal structure of the adults,

I think the beetles are designed to carry a thick layer of spore dust around with them so that, when they freeze motion, they are hard to detect amid the puffball contents.

Images of this individual: tag all
Caenocara sp. , Puffball Beetle - Caenocara Caenocara sp. , Puffball Beetle - Caenocara Caenocara sp. , Puffball Beetle - Caenocara Caenocara sp. , Puffball Beetle - Caenocara Caenocara sp. , Puffball Beetle - Caenocara Caenocara sp. , Puffball Beetle - Caenocara Caenocara sp. , Puffball Beetle - Caenocara Host puffballs - Caenocara Pupal shells from puffball - Caenocara