Can't say for certain. But they remind me of small cocoons formed by parasitic wasps which destroyed a caterpillar.

So, do you see any remnants of what might have been a caterpillar?

Beyond that, I'll await suggestions from folks more familiar with what critters you have in Texas.

Thanks Jean, I have seen the ones that are on the cats. However, these were layed stacked on top of one another on a leaf. The wasps attach the eggs on end to the cats so that each one can feed on the cat ultimately causing it's death :). I didn't see any frass in the area and none of the leaves on that plant were eaten. I did find two more egg clusters attached to a blade of grass and one on a weed. I pulled those and put them in a container. Good thing too, cause the lady beetles ate the one I pictured above :). I'll see if they hatch and then, I may be able to identify them.

Thanks a bunch,
Kristi

Kristi...about the parasitic wasps: the adult wasp inserts her eggs under the skin of the unsuspecting caterpillar. There, the eggs hatch and the young larvae feed on the inards of the caterpillar hosts, starting with the less important parts and saving the essential organs for last. As the caterpiller is dying, the wasp larvae is ready to pupate. Those 'cocoons' on the bodies of the caterpillar are the silken cocoons made by the larvae. They will turn into adult wasps inside, emerging when they are ready to fly away.

You just had the process turned around. ;-)

I'm curious, too, as to what the heck those little things are!

This was posted by Kristi to the Texas Garden Forom on which she also asked for an ID of the 'eggs.'

"Posted by remuda1 7b Hood Co TX (My Page) on Sat, Jun 2, 07 at 15:33

Hi Pam, yup the eggs hatched and they were little teeny wasps of some sort. I released them the day they were hatching but they were too tiny to tell what kind they were. Oh, they were black wasps....lol that's all I know.
Kristi"

Do you think then that they were cocoons of some sort rather than eggs if little black wasps hatched???