I've been reading about recorded cases of apparent #viviparity or #ovoviviparity in #Lepidoptera. I once found a moth with larvae in the abdomen, but I assumed it was a defect or the result of an infection.
In 1863, Scott wrote a fascinating paper on this, including a rearing attempt:
https://www.biodiversitylibrary.org/page/9949616
Really nice: "As my family take an equal part with myself in all matters connected Natural History, I will, with your permission, use the pronoun, we, as I now proceed ..."