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Photo#1324935
Parasitized slug caterpillar - Euclea

Parasitized slug caterpillar - Euclea
Red Oak Prairie, Allamakee County, Iowa, USA
September 1, 2016
Parasitoid larva (fly? wasp?) curves its black "tongue" to reach fresh host tissue. Reminds me of what a leaf-mining fly larva looks like under magnification as it feeds. I couldn't (still can't) believe my good fortune at coming across this phenomenon and managing to get these shots.

Images of this individual: tag all
Parasitized slug caterpillar - Euclea Parasitized slug caterpillar - Euclea Parasitized slug caterpillar - Euclea Parasitized slug caterpillar - Euclea Parasitized slug caterpillar - Euclea Parasitized slug caterpillar - Euclea Parasitized slug caterpillar - Euclea

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Moved from ID Request.

I think you're right that the breathing hole indicates a fly (tachinid) larva, but I'm not totally sure.

 
Cool, thanks
for your input on this. Next time I'll collect and rear ;-)

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