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Photo#617571
Egg on Lytta stygica?

Egg on Lytta stygica?
Catalina State Park, Pima County, Arizona, USA
March 1, 2012

Moved
Moved from ID Request.

Tachinid egg
Interesting, I think Japanese beetles are the only ones I've seen with tachinid eggs on them before. It's not uncommon to see similar eggs on heteropterans.

 
Several Lyttas in that area
were parasitized like that. There are flies here that specialize on scarabs, but I'm surprised anyone can take on Blister Beetles

 
It would be interesting to collect a few
I collected a couple of Japanese beetles and a coreid last summer and the tachinid larvae emerged and pupated within a few days. I should have given them some soil to burrow into--I think they may have dried out and died, but I'm hanging onto them for a few more months in case they're just dormant.

 
If I see them again
I will
Here is a link to a scarab - fly interaction.
http://arizonabeetlesbugsbirdsandmore.blogspot.com/2010/07/on-evening-of-july-12-right-after.html
Even though the flies look like sarcophagids, we (at the UAIC) suspect that they, too are tachnids. Again: next time I'll collect the flies, not just the beetles

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