As perhaps the world’s leading authority on Lonchaeidae, thank you for your efforts!
Short answer: there is not. Although imho, such a feature would be very helpful for many taxa. It could even be done automatically based on the metrics ‘recognition’ and ‘completeness’ (see Mesaglio et al. 2023). Similar features have been proposed (e.g., here ) but not implemented.
More broadly, I think this issue is exacerbated by the lack of a place for ID information (like, “species ID from photos not possible without dissection”) to live on iNaturalist. ID information on iNaturalist is often lost in scattered comments, where it is not findable (one of the principles of FAIR data). This has been discussed for years (e.g., https://forum.inaturalist.org/t/proper-way-to-store-and-organize-hints-about-identification-of-taxa/8962 and https://forum.inaturalist.org/t/expand-the-similar-species-tab-into-an-editable-identification-guide/13890), but I’m not aware of any solutions in the works. When ID information is not easily accessible to new learners (so they can themselves learn), expert IDers can get overwhelmed and experience burnout. Journal posts can be an okay workaround. Maybe integrating the myspecies.info platform (or similar) into iNat would help. Just some more context for your question, which touches on multiple topics!