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

Upcoming Events

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

National Moth Week was July 23-31, 2022! See moth submissions.

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

Photos of insects and people from the 2015 gathering in Wisconsin, July 10-12

Previous events

Antennal crook use - Meloe impressus - male - female

Antennal crook use - Meloe impressus - Male Female
Windham, Rockingham County, New Hampshire, USA
September 14, 2005
I have read speculation that the crooks or kinks in the male Meloe's antennae are for the purpose of grabbing or hanging onto the female during mating. I observed something different.

Having securely mounted the female, the male uses his antennal crooks to pull the female's antennae toward each other in front of her head. After fondling her antennae with his in this way for a minute or less, he then scoots back on the female into copulation position. Although I have yet to observe actual copulation, I deduce that this antennal foreplay has the effect of making the female receptive to penetration and keeps her still while the usually smaller male assumes a more precarious perch for the sex act. I suspect that the stimulus is not just tactile, but has a chemical component, transmitted from the enlarged knobby segments that comprise the male's antennal crook. Here's a closeup:

Oh yes, the red background? Watermelon. These beetles munch leaves like a leaf beetle, but they are extremely fond of watermelon, just like stag beetles or nectar-feeding longhorns.

Meloe impressus Kirby
John Pinto det.

Moved from Oil Beetles.

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