Showing posts with label Gulf Fritillary Caterpillar. Show all posts
Showing posts with label Gulf Fritillary Caterpillar. Show all posts

Wednesday, September 25, 2024

A Tale of Two Caterpillars

 So I saw the tell tale signs of fritillary caterpillars on my passion flower vine.  There were lots of little holes in the leaves, so they were just getting started.  Once they get going, they can defoliate the plant quickly!  I began looking for the culprits.  I found a bunch of eggs that I removed, but only one small caterpillar.  I also found a white/beige caterpillar that I didn’t recognize and it was very wiggly.  Instead of the usual squish method, I thought I’d feed them to my Venus flytrap!  I dropped the Gulf Fritillary caterpillar into a trap and it closed instantly.  The fly trap did its job and started digesting the caterpillar.  A few days later, the trap opened and you can see the remains.

The remains of a Gulf Fritillary cater pillar in a Venus Flytrap

As I mentioned above, the unidentified white/beige caterpillar was very wiggly so I took care to drop it into the center of a trap.  It closed very quickly and I could see the silhouette of the caterpillar moving in the trap.  I came back an hour later intending to take a picture of the trap with the silhouette of the caterpillar.  But instead, I found this round hole.  The caterpillar had eaten its way out of the trap and escaped!

A closed Venus Flytrap with a hole where an unidentified caterpillar escaped!


Monday, January 10, 2022

For once I'm rooting for the ants!

 I grow a passionflower vine in a pot on the balcony and because it's in a pot, it never grows into a huge plant.  Since it's not a big plant, it can easily be devoured by it’s predator the Fritillary caterpillar.  The passionflower vine is a host plant for the Gulf Fritillary butterfly.  They lay little yellow/orange eggs that develop into colorful caterpillars.  I've experienced the caterpillars eating all the leaves on previous vines and they can do it rather quickly. 

 Passionflowers also have a symbiotic relationship with ants. They provide ants a nutritious nectar via extrafloral nectaries located at the base of each leaf and on the eaten leaf edge. In return, the ants protect the leaves from predators, including the fritillary caterpillars.  The battle rages!

Ants and a Gulf Fritillary Caterpillar come face to face.

Ants and a Gulf Fritillary Caterpillar come face to face.

Ants and a Gulf Fritillary Caterpillar on a passion vine.

Here you can see the ants eating nutritious nectar from the tip of the leaf.

Nutritious nectar produced by the passionflower vine.

Nutritious nectar produced by the passionflower vine.

Gulf Fritillary Caterpillar