Grub pet models

[Awq]

In the spotlight showed this picture:

I really like the models of the first two grubs (or how you want to classify them). These pets are not shown in the linked guide. I can not find any more information on the first two models.

The third one (green) is the [pet]Jungle Grub[/pet]
The fourth one (pink-ish) is the [pet]Imperial Silkworm[/pet]
The fifth one (purple) is the [pet]Gu'chi Swarmling[/pet]

I could not find alternative models. I assume that these pets do not have alternative models, although that might be incorrect.
Does anyone know more about the first two models?

[Dragonwizard]

The second one is [url=http://www.wowhead.com/npc=66712#same-model-as]Woodcarver[/url], one of Mo'ruk (Pandaren trainer) pets in Krasarang Wilds. Not sure about the first one.

[Awq]

Thank you. I might make a forum post/twitter message where I ask for re-skinned versions of the Grub, especially one that looks more like Woodcarver.

[Ryu99]

I haven't found the first one as a pet but it is one of the colourings for the Spotted Caterpillar mob in Townlong Steppes.