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Photo#603908
Mealybug destroyer - Thalassa montezumae

Mealybug destroyer - Thalassa montezumae
Sanibel, Lee County, Florida, USA
December 26, 2011
Size: 3-4 mm
I think this is a cluster of Cryptolaemus montrouzieri on a Gumbo Limbo leaf.
I'm curious as to what the yellow beads that appear along the edges might be.

Moved
Moved from Scales and Mealybugs.

Thanks for following up--they do look identical. I'm still wondering (as I'm sure others are) about the yellow "beads"--I wonder if this is the same fluid that some adult ladybugs exude? Can anyone find any other photos that show coccinellid larvae doing something like this?

 
Coccinellid larva releasing droplets
Charley, I'm rearing an unidentified coccinellid, and I've seen it release droplets twice, when disturbed by a spider mite. (The larva was no more than a millimeter in length.) Each time, a couple of droplets appeared dorsally or dorsolaterally along the larva's body. Just FYI.

Kara, I recently posted a thrips that I think may be a state record. Both that one and this one would also be new genera for the Guide if my IDs are correct. Also, I posted a thrips that I think is Neohydatothrips variabilis based on size, structure, and pronotum pattern, but it lacks any banding. If you could please look at these three thrips sometime, I'd appreciate it.

Thanks, and Happy Thanksgiving!

 
Pupation related?
This image appears to be of the larvae just prior to/during the pupation phase. When I saw them like this on my tree they had finished feeding and were becoming motionless and beginning pupation. When they were larvae they had a more oval/elongate form and this more circular shape seems to indicate the pupa is forming underneath this outer skin. That is my observation, at least.

Moved
Moved from ID Request.

not sure about that...
These look more like actual mealybugs, or some sort of soft scale. I don't know any coccinellid larva with a pattern of longer, shorter, and missing white tufts like this. Of course, I also don't know what every coccinellid larva looks like, but the general gestalt I'm getting here isn't coccinellid. In particular, mealybug destroyers (Cryptolaemus montrouzieri) have long tufts all over the dorsal and lateral surfaces, and the body shape is more elongated and flattened, not rounded and domed like these creatures.

 
I agree
maybe eriococcids. Notice the 'dew' being exuded...common among many sternoryhnchan hemipterans.

 
I disagree
These are not mealybugs, they are without a doubt the larvae of a predatory beetle, although I cannot say which beetle species. I also live in Lee county, where the original post was taken, and have just today observed these same larvae on my saltbush consuming green scale insects. I also collected a few pupae of this beetle and will keep them until the adult emerges. Once the adult emerges I will take photographs to pair with the larval and pupal photographs so the insect can be identified to species. I don't think I have the ability to move this photo, but I recommend it be moved from scale insects to Coccinellidae.

 
Looking forward to your photos...
Until you post photos of the larvae you found, there's no way the rest of us can judge how they compare with what is shown in this photo. Feel free to post them now and add photos of pupae and adults later.

 
They're here
The adults have emerged. If you click the link below you will now find photographs of the larva, pupa, and adult of this coccinelid beetle. I now believe the beetles in my photographs and in this one to be Thalassa montezumae. I would like to request whoever has the power to move the images to consider the move.

 
My photos

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