They're barred sulphurs - Eurema daira. The white one is the female.

Sherry

Plants are Matchweed (Verbenaceae).
Host plant of Sulphur pictured is Bidens pilosa (Spanish Needle), another excellent, though weedy nectar source.

Thanks Leafhead and Ms.Sherry:-) I think they are just so cute but tiny!

I would like to ID the MATCHWEED into oblivion. I too live in Florida and hate this noxious weed. It can take over your yard and grows under and over any existing grasses like Bahia or St. Augustine. Cute huh? It is so cute, I may just try to kill it!

This post was edited by homegrown55 on Thu, Nov 27, 14 at 17:50

Matchweed? Is that the same thing as Frogfruit? Is it is, it's not very invasive here!

I live in Miami, FL, and I have it all over my back yard. I'm trying to see if I can keep some of it, because I found out it's good for nectar, and is also a larval plant.

I've never heard it called Matchweed, but it is known to me as Frog, or (Fog) fruit.

I've seen both spellings of it. I let some stay too, because of nectar abilities.