Hessi

She lost her wings, and her left arm can't be lifted from the shoulder. While she used to work in R&D developing hard light tech and applying it to different things, these days she's a professor and gives lectures on science and technology. Her lectures are open to any bug who wants to learn and knows to keep quiet while she's talking. Usually, she's grumpy and hard to engage, but if asked about her old work or where developments in similar technology is heading, she'll lighten up.