Or at least I think it was in carbon pencil. Hard to tell from the scan, but it doesn't look like graphite to me and I don't have the original right here to check.
What can I say? It's been a few years since I did this one.
Araneus gemmoides is a large-ish orb weaver whose most easily distinguished features are the two large bumps on its abdomen. So what do I do but draw the thing from an angle where you can't really see the bumps?...
Gotta wonder what happens in my brain sometimes. Logic certainly doesn't seem to apply.