Mystery Egg Mass

25mm long | July 12, 2011 | Victorio Siqueroli Park, Uberlandia, Minas Gerais, Brazil

What looks a bit like peanut brittle is presumably an egg mass. I found this on lichen covered bark at the base of a tree. Overall it was about 25mm long, which would make each of the embedded eggs less than 2mm long.

Side view

Each egg appears to be elliptical, with a sort of knob at the exposed end.


I don’t have a clue what is responsible for this, so I’d love to see comments from anyone that might have an idea. I’ve been through the “Eggs and Egg Cases” chapter of Tracks & Sign of Insects a few times already, but I haven’t spotted any likely suspects.

This entry was posted in Featured Photos. Bookmark the permalink.

4 Responses to Mystery Egg Mass

  1. My immediate impression was some kind of hemipteran, because they seem to have “lids” on them that the hatchlings can pop open. It’s sort of suggestive of a mass of coreid eggs. I’m not aware of any heteropterans that secrete a covering like this over their eggs (or could that be fungus?), but I’m totally ignorant of things that don’t occur in North America.

    • Troy Bartlett says:

      I don’t think it’s a fungus. It has cracks in it, so it’s more like a cement. I’d guess that the substrate was laid down first, then the eggs were inserted, and then the substrate hardened.

  2. Pingback: Monthly Mystery #3: Covered Egg Mass | BugTracks

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.