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

Interested in a 2022 BugGuide gathering in New Mexico?

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

National Moth Week 2020 photos of insects and people.

Photos of insects and people from the 2019 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.

Previous events


TaxonomyBrowseInfoImagesLinksBooksData
Photo#122075
Meromacrus acutus - male

Meromacrus acutus - Male
Parkwood, Durham County, North Carolina, USA
June 21, 2007
Size: 18 mm
This fly appeared to be ovipositing repeatedly in a bucket of compost, but see comments--perhaps it was not doing so. Size estimated.

(Yes, comparing other images for this species on BugGuide, this must be a male.)

Images of this individual: tag all
Meromacrus acutus - male Meromacrus acutus - male

The touching eyes
are suggestive of a male!

 
Good point!
Well, maybe it was just dipping its abdomen for some reason on the compost--sure looked like ovipositing--but I did not see any eggs, so point well taken.

I'll turn off the M/F marker for now. Looking at our images here, we do seem to have some with the larger eyes (males?) and some with eyes that do not touch (presumed females).

 
Mimicry?
I have seen many syrphids bob the abdomen up and down, which I suspect is part of the mimicry-reinforcement behavior, as many wasps have twitchy behinds as well:-)

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