There is no mistake between a pastel and a super. If you bought a pastel, it is almost a guaranteed pastel. I doubt a breeder could make that mistake and loose money over it.. :]
I could be wrong on this, but I'm using what I know about genetics. Because the Super Pastel is Homozygous, it can only transfer one pastel gene to each of the offspring..
So let me see.. From the SP x Spider I think it would have all bumble bee offspring.. However, Isn't the spider gene Heterozygous Dominant? So then it would also have the allele for Normal. If this is true it would be 50% for Pastels and 50% for Bees. At least I think..
Because the spider is dominant.. But I'm pretty sure you won't get anything other than bees, spiders, pastels, and normals.
Edit: Also, the Pastel can only transfer one gene as well, either the Pastel allele or the Normal allele, which in this case would give chances for Normals as the normal allele is dominant.