Ha! I just found this list of pitcher plant contents we identified as a class and put together as a draft blog post last September (see previous post for context and additional photos):

• 2 caterpillars, 2 adult lepidopteran heads (crania)
• 3–4 spp. of ichneumonid
• 1 teleasine scelionid
• lots of flies, including dolichopodids, phorids, and cecidomyiids
• Psyllidae
• Thripidae
• Rhaphidophoridae
• 3 spp. of ants, including some Camponotus
• Braconidae: Doryctinae
• 2 spider spp.
• Tipulidae
• Opiliones chelicera
• Tettigoniidae leg

Alas I never completed the draft, but I do know the plant was Sarracenia purpurea (Sarraceniaceae). I also have a browser open somewhere with a TON of tabs with pitcher plant references. That post lost momentum ages ago, so here are the fragments. Seems like a cool undergrad project here! Maybe next fall I can be a bit more robust about how I sample.